Inhaling the smoke from a burning _________ could _________ you quickly.
a.
tire / tier
b.
tire / tyre
c.
tyre / tire
Correct Answer
d.
tyre / tier
No explanation saved for this question yet.
Q1mcq
Inhaling the smoke from a burning _________ could _________ you quickly.
a.
tire / tier
b.
tire / tyre
c.
tyre / tire
Correct Answer
d.
tyre / tier
No explanation saved for this question yet.
Q2mcq
A sphere of radius $r$ cm is packed in a box of cubical shape. What should be the minimum volume (in cm 3) of the box that can enclose the sphere?
a.
$r$ 8
b.
$r$
c.
$2r$
d.
$8r$
Page 1
Correct Answer
No explanation saved for this question yet.
Q2mcq
A sphere of radius $r$ cm is packed in a box of cubical shape. What should be the minimum volume (in cm 3) of the box that can enclose the sphere?
a.
$r$ 8
b.
$r$
c.
$2r$
d.
$8r$
Page 1
Correct Answer
No explanation saved for this question yet.
Q3mcq
Pipes P and Q can fill a storage tank in full with water in 10 and 6 minutes, respectively. Pipe R draws the water out from the storage tank at a rate of 34 litres per minute. P, Q and R operate at a constant rate. If it takes one hour to completely empty a full storage tank with all the pipes operating simultaneously, what is the capacity of the storage tank (in litres)?
a.
26.8
b.
60.0
c.
120.0
Correct Answer
d.
127.5
Page 2
No explanation saved for this question yet.
Q3mcq
Pipes P and Q can fill a storage tank in full with water in 10 and 6 minutes, respectively. Pipe R draws the water out from the storage tank at a rate of 34 litres per minute. P, Q and R operate at a constant rate. If it takes one hour to completely empty a full storage tank with all the pipes operating simultaneously, what is the capacity of the storage tank (in litres)?
a.
26.8
b.
60.0
c.
120.0
Correct Answer
d.
127.5
Page 2
No explanation saved for this question yet.
Q4mcq
Six persons P, Q, R, S, T and U are sitting around a circular table facing the center not necessarily in the same order. Consider the following statements: $$ P sits next to S and T. $$ Q sits diametrically opposite to P. $$ The shortest distance between S and R is equal to the shortest distance between T and U. Based on the above statements, Q is a neighbor of
a.
U and S
b.
R and T
c.
R and U
Correct Answer
d.
P and S
Page 3
No explanation saved for this question yet.
Q4mcq
Six persons P, Q, R, S, T and U are sitting around a circular table facing the center not necessarily in the same order. Consider the following statements: $$ P sits next to S and T. $$ Q sits diametrically opposite to P. $$ The shortest distance between S and R is equal to the shortest distance between T and U. Based on the above statements, Q is a neighbor of
a.
U and S
b.
R and T
c.
R and U
Correct Answer
d.
P and S
Page 3
No explanation saved for this question yet.
Q5mcq
A building has several rooms and doors as shown in the top view of the building given below. The doors are closed initially. What is the minimum number of doors that need to be opened in order to go from the point P to the point Q?
a.
4
b.
3
c.
2
Correct Answer
d.
1
Page 4
No explanation saved for this question yet.
Q5mcq
A building has several rooms and doors as shown in the top view of the building given below. The doors are closed initially. What is the minimum number of doors that need to be opened in order to go from the point P to the point Q?
a.
4
b.
3
c.
2
Correct Answer
d.
1
Page 4
No explanation saved for this question yet.
🎉 10 Free Sample Solutions Completed
Unlock All 134 Questions & Solutions
Sign up free in seconds to unlock step-by-step AI answers for the remaining 124 questions.
Rice, a versatile and inexpensive source of carbohydrate, is a critical component of diet worldwide. Climate change, causing extreme weather, poses a threat to sustained availability of rice. Scientists are working on developing Green Super Rice (GSR), which is resilient under extreme weather conditions yet gives higher yields sustainably. Which one of the following is the CORRECT logical inference based on the information given in the above passage?
a.
GSR is an alternative to regular rice, but it grows only in an extreme weather
b.
GSR may be used in future in response to adverse effects of climate change
c.
GSR grows in an extreme weather, but the quantity of produce is lesser than regular rice
d.
Regular rice will continue to provide good yields even in extreme weather
Page 5
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Rice, a versatile and inexpensive source of carbohydrate, is a critical component of diet worldwide. Climate change, causing extreme weather, poses a threat to sustained availability of rice. Scientists are working on developing Green Super Rice (GSR), which is resilient under extreme weather conditions yet gives higher yields sustainably. Which one of the following is the CORRECT logical inference based on the information given in the above passage?
a.
GSR is an alternative to regular rice, but it grows only in an extreme weather
b.
GSR may be used in future in response to adverse effects of climate change
c.
GSR grows in an extreme weather, but the quantity of produce is lesser than regular rice
d.
Regular rice will continue to provide good yields even in extreme weather
Page 5
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
When the arrow comes to rest, there are eight equally likely outcomes. It could come to rest in any one of the sectors numbered 1, 2, 3, 4, 5, 6, 7 or 8 as shown. Two such disks are used in a game where their arrows are independently spun. What is the probability that the sum of the numbers on the resulting sectors upon spinning the two disks is equal to 8 after the arrows come to rest?
a.
1 16
b.
5 64
c.
3 32
d.
7 64
Page 6
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
When the arrow comes to rest, there are eight equally likely outcomes. It could come to rest in any one of the sectors numbered 1, 2, 3, 4, 5, 6, 7 or 8 as shown. Two such disks are used in a game where their arrows are independently spun. What is the probability that the sum of the numbers on the resulting sectors upon spinning the two disks is equal to 8 after the arrows come to rest?
a.
1 16
b.
5 64
c.
3 32
d.
7 64
Page 6
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Consider the following inequalities. (i) $3p$ - $q$ < 4 (ii) $3q$ - $p$ < 12 Which one of the following expressions below satisfies the above two inequalities?
a.
$p$ + $q$ < 8
b.
$p$ + $q$ = 8
c.
8 $\le p$ + $q$ < 16
d.
$p$ + $q \ge$ 16
Page 7
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Consider the following inequalities. (i) $3p$ - $q$ < 4 (ii) $3q$ - $p$ < 12 Which one of the following expressions below satisfies the above two inequalities?
a.
$p$ + $q$ < 8
b.
$p$ + $q$ = 8
c.
8 $\le p$ + $q$ < 16
d.
$p$ + $q \ge$ 16
Page 7
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are three statements and four conclusions drawn based on the statements. Statement 1: Some engineers are writers. Statement 2: No writer is an actor. Statement 3: All actors are engineers. Conclusion I: Some writers are engineers. Conclusion II: All engineers are actors. Conclusion III: No actor is a writer. Conclusion IV: Some actors are writers. Which one of the following options can be logically inferred?
a.
Only conclusion I is correct
b.
Only conclusion II and conclusion III are correct
c.
Only conclusion I and conclusion III are correct
d.
Either conclusion III or conclusion IV is correct
Page 8
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are three statements and four conclusions drawn based on the statements. Statement 1: Some engineers are writers. Statement 2: No writer is an actor. Statement 3: All actors are engineers. Conclusion I: Some writers are engineers. Conclusion II: All engineers are actors. Conclusion III: No actor is a writer. Conclusion IV: Some actors are writers. Which one of the following options can be logically inferred?
a.
Only conclusion I is correct
b.
Only conclusion II and conclusion III are correct
c.
Only conclusion I and conclusion III are correct
d.
Either conclusion III or conclusion IV is correct
Page 8
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The average bulk density of a fully saturated sandstone reservoir with a fractional porosity of 0.23 is ______ g/cc. [round off to 2 decimal places] [Assume matrix density for sandstone = 2.63 g/cc and fluid density = 1.05 g/cc]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The average bulk density of a fully saturated sandstone reservoir with a fractional porosity of 0.23 is ______ g/cc. [round off to 2 decimal places] [Assume matrix density for sandstone = 2.63 g/cc and fluid density = 1.05 g/cc]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
For a productive alluvial aquifer with hydraulic conductivity = 105 m/day and hydraulic gradient = 0.01, the flow rate is _________ m/day. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
For a productive alluvial aquifer with hydraulic conductivity = 105 m/day and hydraulic gradient = 0.01, the flow rate is _________ m/day. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The relationship between conjugate shear fractures and the principal stresses in a homogenous, isotropic, deformed body is shown in the stereoplot given below $($ 1, $$ 2 and $$ 3 are compressive stresses). Which one of the given fault regimes is indicated according to the Anderson’s theory of faulting for the formation of conjugate shear fractures under plane strain?
a.
Dextral strike-slip
b.
Sinistral strike-slip
c.
Reverse
d.
Normal
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The relationship between conjugate shear fractures and the principal stresses in a homogenous, isotropic, deformed body is shown in the stereoplot given below $($ 1, $$ 2 and $$ 3 are compressive stresses). Which one of the given fault regimes is indicated according to the Anderson’s theory of faulting for the formation of conjugate shear fractures under plane strain?
a.
Dextral strike-slip
b.
Sinistral strike-slip
c.
Reverse
d.
Normal
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The difference in arrival times of P- and S-waves generated by an earthquake and recorded at a seismological station is one second. Assuming a homogeneous and isotropic Earth, a P-wave velocity (V P) of 3 km/s, the ratio of P- to S-wave velocities (V P /V S) of 2.0, the distance between the station and the hypocenter is __________km. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The difference in arrival times of P- and S-waves generated by an earthquake and recorded at a seismological station is one second. Assuming a homogeneous and isotropic Earth, a P-wave velocity (V P) of 3 km/s, the ratio of P- to S-wave velocities (V P /V S) of 2.0, the distance between the station and the hypocenter is __________km. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Assuming the rate of rotation of the Earth is 7.27 $$ 10 -5 radians/s and the radius of Earth is 6371 km, the centrifugal acceleration at 60 o latitude for a spherically rotating Earth is $______$ 10 -3 m/s 2. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Assuming the rate of rotation of the Earth is 7.27 $$ 10 -5 radians/s and the radius of Earth is 6371 km, the centrifugal acceleration at 60 o latitude for a spherically rotating Earth is $______$ 10 -3 m/s 2. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The angle of inclination of the remanent magnetization of a volcanic rock measured at a location is 45 °. The magnetic latitude of the location of the volcanic rock at the time of its magnetization is _________ ° N. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The angle of inclination of the remanent magnetization of a volcanic rock measured at a location is 45 °. The magnetic latitude of the location of the volcanic rock at the time of its magnetization is _________ ° N. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In a 2D seismic survey acquired on land, head waves were recorded at the surface. Assuming that the subsurface consisted of horizontal, isotropic and homogeneous layers, the moveout of the head wave event(s) would be _________.
a.
linear
b.
parabolic
c.
hyperbolic
d.
elliptical
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
During crystallization of a magma, which one of the following schematic paths (I, II, III and IV) describes the behavior of compatible elements in the residual melt?
a.
II
b.
IV
c.
I
d.
III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which one of the following cross-stratifications provides the paleocurrent direction on the truncated bedding surface of an undeformed cross-stratified sedimentary strata?
a.
Tabular
b.
Hummocky
c.
Trough
d.
Herringbone
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A current flows from a medium with resistivity $$ 1 to a medium with resistivity $$ 2. A planar interface separates the two media. The angle of incidence and refraction with respect to the normal to the interface are θ 1 and θ 2, respectively. If the components of the current density perpendicular to the interface and the components of the electric field horizontal to the interface are continuous, the electrical law of refraction can be expressed as ___________.
a.
b.
c.
d.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
An oceanic plate formed at a mid-oceanic ridge 27 million years ago. The plate has been moving with a uniform half-spreading rate of 4 cm/year ever since its formation. The current distance between the edge of this plate and the centre of the ridge is __________ km. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
An artificial neural network (ANN) is trained to classify between shale and sand formations. The final layer of the ANN consists of a single neuron with a sigmoid activation function given by $ (x)$ =. If the input to the final neuron is 0, then the output is __________. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A current electrode introduces a 2 Ampere current at a point (P) on the surface of a uniform half space. If the resistivity of the half space is 5 $-m,$ the magnitude of the electric field (due to the current) in the half space at a distance of 1 m from P is ________ V/m. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The strike and dip of the axial plane of a reclined fold is 022° and 28° SE, respectively. The plunge direction (in whole circle bearing) of the axis of the reclined fold is ______ degrees. [in integer]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The relative dielectric permittivity of a homogeneous isotropic medium is 10 and the relative magnetic permeability of the same medium is 1. If the velocity of the electromagnetic wave propagating through this medium is v and the velocity of light in vacuum is c, then the ratio v/c is ________. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A mountain of height 8 km above mean sea level is in isostatic equilibrium with a 42 km thick continental crust. As predicted by Airy’s hypothesis, the root beneath this mountain is ________ km. [round off to 1 decimal place] [Assume, density of mantle = 3.7 $\times10$ 3 kg m -3 and density of crust = 2.7 $\times10$ 3 kg m -3 ]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The cross section of a river channel is approximated by a trapezium. The river has an average channel width of 40 m and average depth of 3 m. If the average flow speed is 2 m/s, the discharge rate is _________ m 3 /s. [in integer]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In wet soil of resistivity $100 m,$ the skin depth of a GPR signal of 100 MHz is _________ m. [round off to 2 decimal places] [Assume: $μ$ = $4π \times$ 10 $H/m]$
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A mineral of uniform composition is cut into a wedge shape. The birefringence of the wedge section is 0.012. The retardation at 40 µm thickness of the wedge is _______ nm. [in integer]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A Wadati diagram was prepared for a local earthquake occurring in a homogeneous crust. If the crust is assumed to be a Poisson solid, the slope of the straight line in the Wadati diagram is ________. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The sand supply and the variability of wind direction results in different dune types. In the options below, choose the CORRECT pair of dune types marked I and II in the figure.
a.
I – Transverse dune; II – Barchan dune
b.
I – Star dune; II – Barchan dune
c.
I – Barchan dune; II – Linear dune
d.
I – Barchan dune; II – Star dune
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The gravitational potential of the spheroidal Earth can be expressed as $U$ = $-G$ 1-∑ $J P$ (cos $θ)$, where G is the gravitation constant, $E$ is the mass of the Earth, $r$ is the radial distance from the centre of the Earth, R is the radius of Earth, $J$ are the coefficients obtained from satellite geodesy, $P$ represents the Legendre polynomial of order $n,$ and $θ$ is the colatitude. Which among the following is described by the term corresponding to $n$ = 2? [Given: $P$ (cos $θ)$ = (3 cos $θ$ - 1)]
a.
Gravitational potential due to a spherical Earth
b.
Deviations from the ellipsoid that correspond to a pear-shaped Earth
c.
The effect of the polar flattening on the Earth’s gravitational potential
d.
The gravitational potential of the Earth-Moon system
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The magnetic potential of a dipole at any external point (P) can be expressed as $V=C$ ⃗∙ ̂, $r ≠$ 0, where $m$ ⃗ is the dipole moment, $r̂$ is a unit normal along the vector directed from the centre of the dipole to the external point (P) and $C$ is a constant. If θ is the angle between $m$ ⃗ and $r̂$, the radial component of $B$ ⃗ is:
a.
b.
c.
d.
$B$ = $2C$
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The functions $g(t)$ and $G(ω)$ constitute a Fourier Transform pair $[g(t)$ ↔ $G(ω)]$ as per the convention: $g(t)$ = $\int G(ω)e dω$ and $G(ω)$ = $\int g(t)e dt$ Which ONE among the following is the correct Fourier transform pair?
a.
()
b.
()
c.
()
d.
()
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
↔ $G(ω)$ ↔ $jωG(ω)$ ↔ $-jωG(ω)$ ↔ $ωG(ω)$ Gauss’ divergence theorem is given by $$ ⃗ $ a$ ⃗ $dV$ = $a$ ⃗ $ dS$ ⃗ where $a$ ⃗ is a vector field and V is the volume enclosed by the surface S. If $a$ ⃗ = $$ + $$ ⃗ $\times ψ$ ⃗, then the application of divergence theorem to $a$ ⃗ yields:
a.
b.
c.
d.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
On a fault surface with strike and dip 320° and 55° NE, respectively, four sets of slickenlines were measured by a geologist. Given that the fault surface was measured correctly, the plunge and plunge direction of the lineation on the fault surface is
a.
55° $\to$ 050°
b.
20° $\to$ 320°
c.
50° $\to$ 325°
d.
60° $\to$ 090°
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The schematic represents P-wave arrivals from a zero-offset Vertical Seismic Profiling (VSP) experiment conducted over a horizontally layered and isotropic Earth. Match the four events labelled in the schematic and their listed descriptions.
Schematic
a.
P-2; Q-1; R-4; S-3
b.
P-1; Q-2; R-3; S-4
c.
P-2; Q-1; R-3; S-4
d.
P-1; Q-2; R-4; S-3
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following igneous textures in Group-I with their definitions in Group-II. Group-I Group-II P Vitrophyre 1 Alkali feldspar rimmed by plagioclase Q Rapakivi 2 Aggregate of radially arrayed, needle-like
crystals of plagioclase with or without
clinopyroxene R Ocelli 3 Sub-parallel skeletal, platy olivine and/or S Spinifex 4 Large phenocrysts within a glassy matrix
pyroxene
a.
P-2; Q-3; R-4; S-1
b.
P-3; Q-4; R-2; S-1
c.
P-4; Q-1; R-2; S-3
d.
P-4; Q-1; R-3; S-2
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the Volcanogenic Massive Sulfide (VMS)-type deposits in Group-I with the dominant mineralized host rocks in Group-II. Group-I Group-II P Besshi 1 Felsic volcanics Q Bathurst 2 Mafic volcanics + siliciclastics R Kuroko 3 Mafic volcanics S Cyprus 4 Felsic volcanics + siliciclastics
a.
P-2; Q-1; R-3; S-4
b.
P-2; Q-4; R-1; S-3
c.
P-4; Q-3; R-1; S-2
d.
P-1; Q-4; R-2; S-3
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The apparent resistivity values obtained from a vertical electrical sounding (VES) survey over a horizontally layered 1-D Earth are indicated by $ρ$, $ρ$, $ρ$, $ρ$, where the subscript refers to the n th layer from the surface. Match the VES curve types listed in Group-I with the corresponding ordering of resistivity values listed in Group-II.
Group-II
P.
QH
1.
$ρ$ <
$ρ$
>
$ρ <ρ$
Q.
HK
2.
$ρ$ >
$ρ$
>
$ρ$ <
R.
HA
3.
$ρ$ >
$ρ$
<
$ρ >ρ$
S.
KH
4.
$ρ$ >
$ρ$
<
$ρ <ρ$
a.
P-4; Q-3; R-1; S-2
b.
P-2; Q-3; R-4; S-1
c.
P-4; Q-3; R-2; S-1
d.
P-3; Q-1; R-2; S-4
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The following diagram shows phase relations in a system consisting of components A and B at 1 bar pressure. If the initial composition of liquid is R, during cooling and crystallization of magma, which of the following statement(s) is/are CORRECT?
a.
On complete crystallization of magma, the final composition (in wt.%) of rock consists of 25 of mineral A and 75 of mineral B.
b.
On cooling of magma, mineral A is the first mineral to crystallize.
c.
At point Q, the weight percentages of crystal and liquid are 37.5 and 62.5, respectively.
d.
The composition (in wt.%) of liquid at point E is 40 A and 60 B.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In seismic spiking deconvolution with an unknown source wavelet, the wavelet can be deconvolved most effectively under which of the following condition(s)?
a.
The source wavelet is minimum phase.
b.
The source wavelet is zero phase.
c.
The autocorrelation of the reflectivity series in time domain can be approximated by a delta function.
d.
The autocorrelation of the reflectivity series in time domain can be approximated to be identically zero.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The stacking chart for an end-on 2D seismic survey is shown in the figure. The shot, receiver, mid-point and offset coordinate axes are as indicated in the figure, while each star represents a unique seismic trace. With reference to the stacking chart, which of the following is/are CORRECT statement(s)?
a.
The traces along LL constitute a common mid-point (CMP) gather.
b.
The traces along LL constitute a common shot gather.
c.
The traces along NN constitute a common offset gather.
d.
The traces along NN constitute a common receiver gather.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Suppose $x$ defines the half-width at 1/5 th of the maximum gravity value measured
⁄ over a buried sphere of uniform density. If $d$ is the distance from the surface to the centre of the sphere, the value of ⁄ is _______. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In a reservoir zone, the deep induction log reads 3 $m$ for a formation whose porosity is 19%. The hydrocarbon saturation of that formation as estimated from Archie’s equation is ______%. [round off to 1 decimal place] [Assume: a=1, n=2, m=1.5, formation water resistivity = 0.04 $m]$
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The heat flow q (mW/m 2) is related to the age t (My) of the ocean floor as t = (510/q) 2. Assuming the temperature gradient and the thermal conductivity at a site in the Indian ocean to be 55 $C/km$ and 2.3 W/m $C,$ respectively, the age of the site is_______ My. [round off to 2 decimal places] [Use the magnitude of the calculated value of q]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The radioactive isotopes A X and B X of an element X at the time of formation of a rock sample were in equal proportions. Subsequently, in a closed system, it was found that the abundances of the isotopes were in the ratio B X / A X = 128.55. The elapsed time since the formation of the sample is ______ years. [round off to 1 decimal place] [Assume: decay rate of $$ A = 9.85 $\times$ 10 -3 y -1, $$ B = 1.55 $\times$ 10 -3 y -1 ].
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A sample of 10 g coal yields 1 g of moisture, 2 g of ash and 5.6 g of volatile matter. The percentage of volatile matter content of the coal on dry ash-free basis is ________. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A two-layered planet consists of a core and a mantle of uniform but unequal densities. The density of the core is 7150 kg m -3 and the mean density of the planet is 5620 kg m -3. If the mantle enclosing the core occupies 2/3 rd of the radius of the planet from the surface, then the density of the mantle is ______ kg m -3. [round off to 1 decimal place]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A soil sample shows an average beta count of 6.8 counts per minute (cpm) per gram of organic carbon. The 14 C count rate from organic carbon of present day vegetation is 15.26 cpm/g. The age of the sample is _________ years. [round off to 1 decimal place] (Half-life of 14 C = 5370 years)
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A reflection seismic survey is conducted over a two-layered medium with a single horizontal, homogeneous, isotropic layer underlain by a homogenous, isotropic half-space. The Shuey two-term approximation for the P-wave reflection coefficient for the interface separating the media is given by: $R(θ)$ = 0.025 - 0.1 sin $θ,$ where $θ$ is the angle of incidence of the P-wave with respect to the normal to the interface. Assuming the validity of the approximation, the offset-to-depth ratio (offset/depth) at which a polarity reversal can be observed in a CMP gather from the survey is _________. [round off to two decimal places] [Hint: A change in the sign of the reflection coefficient leads to polarity reversal]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A digital camera with a focal length of 150 mm is flown at a height of 3000 m over a flat terrain for taking aerial photographs. The scale of the aerial photograph is 1: ________. [in integer]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The given figure shows the rupture of a unilateral fault with the rupture velocity (V r) of 2 km/s. According to the simple Haskell source model, the rupture time associated with the entire length of the fault as estimated at the station is ________ sec. [round off to 2 decimal places] [Assume: Shear wave speed = 3.5 km/s]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The given figure shows ray paths for direct P and P-to-S converted phases recorded at a station on the surface (R) for a teleseismic event. Given that the ray parameter (p) is 0.1 s/km, the arrival time difference between the P-to-S converted phase and the direct P-phase at the receiver R is _____sec. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Operating costs of an open cast gold mine are Rs. 4000/tonne. The recovery at the mill is 90%. At a gold price of Rs. 4550/g, the cutoff grade of gold calculated on the basis of operating cost is _________ g/tonne. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
A land seismic survey is conducted over a horizontally layered and isotropic Earth. The thickness and the P-wave velocity of the homogeneous weathered layer are 5 m and 800 m/s, respectively. The shots are fired at a depth of 5 m below the surface and the receivers are placed on the surface at mean sea level (MSL). If the datum plane is defined to be 5 m below the MSL, the magnitude of the P-wave static correction to be applied to the data is ________ milliseconds. [round off to 2 decimal places]
Numerical answer locked.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
