The magnetic field strength of solenoid can be increased by
a.
Decreasing the current
b.
Decreasing the number of turns
c.
Removing iron from the field
d.
Increasing the current
Correct Answer
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Q2mcq
LVDT is a
a.
Passive Capacitive Transducer
b.
Passive Inductive Transducer
Correct Answer
c.
Active Capacitive Transducer
d.
Active Inductive Transducers
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Q3mcq
Which photo electric device is most suitable for digital applications?
a.
Photo-emissive cell
b.
Photo diode
Correct Answer
c.
Photo transistor
d.
Photo voltaic cell
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Q4mcq
A Linear Variable Differential Transformer (LVDT) is
a.
a displacement transducer
Correct Answer
b.
an impedance matching transformer
c.
a differential temperature sensor
d.
an auto transformer
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Q5mcq
In a 3 phase symmetrical and balanced system, the sum of instantaneous values of emfs of three phase is
a.
always zero
Correct Answer
b.
$e_{R}$ + $e_{Y}$ + $e_{B}$
c.
$e_{R}$ - $e_{Y}$ + $e_{B}$
d.
$e_{R}$ - $e_{Y}$ - $e_{B}$
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Q6mcq
In a balanced delta connected system the line current and phase current are related as
a.
$I_{L}$ $=$ $√3$ $I_{ph}$
Correct Answer
b.
$I_{L}$ $=$ $I_{ph}$
c.
$I_{ph}$ $=$ $√3$ $I_{L}$
d.
None of the above
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Q7mcq
Energy stored in a capacitor is given by all of the following relations except:
(i) E $=$ QV/2 (ii) E $=$ $CV²/2$ (iii) E $=$ $Q²/(2C$) (iv) E $=$ QCV/2
a.
(iv)
Correct Answer
b.
(i) and (ii)
c.
(i) and (iii)
d.
All the four expression
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Q8mcq
The basic step of a 9 bit DAC is 10.3 mV. If 000000000 represents 0V, what input is produced if the input is
101101111.
a.
1.24 V
b.
3.78 V
Correct Answer
c.
4.26 V
d.
1.02 V
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Q9mcq
The ratio of transformation in potential transformers
a.
Increases with increase in power factor of secondary burden
b.
Decreases with increase in power factor of secondary burden
Correct Answer
c.
Remains constant irrespective of power factor of secondary burden
d.
Proportional to square of the power factor of secondary burden
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Q10mcq
During measurement of voltage and current in a load, ammeter and voltmeter are connected in series and
across the load respectively. If voltmeter and ammeter positions are interchanged by mistake, then
a.
Voltmeter will be damaged
b.
Ammeter will be damaged
c.
Both Ammeter and Voltmeter will be damaged
d.
Both the meters are safe
Correct Answer
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A moving coil instrument has the following data: Number of turns $=$ 100, width of the coil $=$ 20 mm, Depth
of the coil $=$ 30 mm, Flux density in the gap $=$ 0.1 $Wb/m²$, deflection torque $=$ 30 $×$ 10⁻⁶ Nm. The current through
the moving coil is given by
a.
5 A
b.
50 mA
c.
5 mA
d.
10 mA
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________ is defined as an attack in which the adversary chooses a number of cipher texts and is then
given the corresponding plaintexts, decrypted with the target's private key.
a.
Ciphertext attack
b.
Chosen ciphertext attack
c.
Malware attack
d.
Timing attack
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Consider the following set of processes, assumed to have arrived at time 0 in the order P1, P2, .., P5 with
the length of the CPU burst given in milliseconds:
P1 (Burst: 10, Priority: 3), P2 (Burst: 1, Priority: 1), P3 (Burst: 2, Priority: 4), P4 (Burst: 1, Priority: 5), P5 (Burst: 5,
Priority: 2).
Using priority scheduling, the average waiting time is
a.
8.2 milliseconds
b.
6.5 milliseconds
c.
7 milliseconds
d.
7.5 milliseconds
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The ________ facility enables a user thread to specify a function that is to be called when the user thread
receives notification of a particular event.
a.
Synchronous procedure call
b.
Asynchronous procedure call
c.
Default procedure call
d.
User defined procedure call
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When a process creates a new process, two possibilities for execution exist:
1. The parent continues to execute concurrently with its children
2. The parent waits until some or all of its children have terminated.
3. The children process is a duplicate of the parent process
4. The child process has a new program loaded into it
a.
1 and 2 are correct
b.
1 and 3 are correct
c.
2 and 4 are correct
d.
2 and 3 are correct
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Identify the correct: Suppose an integer A in file B resides on Magnetic disk. If the value of A is to be
incremented, which of the following correctly migrates A to CPU for execution.
a.
Hardware register → Cache → Main Memory → Magnetic disk
b.
Cache → Main Memory → Magnetic disk → Hardware register
c.
Magnetic disk → Main Memory → Cache → Hardware register
d.
Cache → Magnetic disk → Main Memory → Hardware register
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The I/O subsystem consists of:
(1) A memory management component that includes buffering, caching and spooling
(2) A general device-driver interface
(3) Drivers for specific hardware devices
(4) All the above
a.
(1)
b.
Both (1) and (2)
c.
(4)
d.
Both (1) and (3)
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Which of the following statements are true about Multicore Multiprocessor?
(i) They can be more efficient than multiple chips with single core.
(ii) One chip with multiple cores uses significantly less power than multiple single core chips.
(iii) It is a multiple single core chip.
a.
(i) only
b.
(i) and (ii) only
c.
(i) and (iii) only
d.
(ii) and (iii) only
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Which metric removes the discrepancy between systems with different numbers of clocks per operation
by measuring instructions per second rather than clocks per second?
a.
Latency
b.
Through put
c.
Relative performance
d.
Millions of Instruction Per Second (MIPS)
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Choose the address mode for the following statement: "It is used in conjunction with two byte
instructions where the first byte is op code and the second byte is the operand."
a.
Direct Addressing mode
b.
Immediate Addressing mode
c.
Inherent Addressing mode
d.
Index Addressing mode
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A certain computer system takes 125 ms to render a certain graphic image, and this time is reduced to 100
ms when a graphics processor card is added to the system. What is the speed up?
a.
0.75
b.
1.25
c.
0.25
d.
1.00
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What type of hazard occurs when an instruction is fetched from the memory, some proceeding
instructions may be reading or writings some data onto the memory in the same pipeline cycle?
a.
Control Hazard
b.
Instruction Hazard
c.
Data Hazard
d.
Structural Hazard
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Identify the invalid statement for virtual function:
(i) Virtual functions must be members of some class.
(ii) They can be static and dynamic members.
(iii) They are accessed by using object pointers.
(iv) A virtual function can be a friend of another class.
a.
(i)
b.
(ii)
c.
(iii)
d.
(iv)
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Match the following:
(a) Friend function 1. make a program run faster but speed diminishes as function grows
(b) Static member variable 2. eliminate redundant code and extend use of existing class
(c) Inline function 3. can be declared in public or private part of a class
(d) Inheritance 4. visible only within the class
a.
(a)-4, (b)-3, (c)-1, (d)-2
b.
(a)-4, (b)-1, (c)-3, (d)-2
c.
(a)-3, (b)-4, (c)-1, (d)-2
d.
(a)-4, (b)-3, (c)-2, (d)-1
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Identify the statements which are not true about Tuples:
(1) Tuples can be used as key for a dictionary
(2) Tuples are mutable
(3) Tuples can be converted into list
(4) A tuple can be defined inside another Tuple
a.
(1) and (2)
b.
(2) and (3)
c.
(3) and (4)
d.
(2) only
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________ is a circuit for emulating the target system that remains independent of a particular targeted
system processor, usable during the development phase for most of the target systems that will incorporate a
particular microcontroller chip
a.
Compiler
b.
Emulator
c.
Debugger
d.
In-Circuit Emulator (ICE)
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Choose the correct option suitable for Rate-Monotonic scheduling:
(1) Extracts higher utilization of the CPU
(2) Difficult to diagnose the possibility
(3) Lower CPU utilization
(4) Easier to ensure that all deadlines will be satisfied
a.
(1), (2) and (4) only
b.
(3) and (4) only
c.
(2) and (3) only
d.
(1) and (2) only
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ARM supports the following addressing modes:
(i) Register-indirect addressing
(ii) Base-plus-offset addressing
(iii) Auto indexing
(iv) Post indexing
(v) Register addressing
a.
(i), (ii), (iii) and (iv)
b.
(i), (ii), (iii) and (v)
c.
(ii), (iii), (iv) and (v)
d.
(i), (ii), (iii), (iv) and (v)
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A relation schema R is in ________ with respect to a set F of functional dependencies if for all functional
dependencies in F⁺ of the form $α$ → $β$, where $α$ ⊆ R and $β$ ⊆ R, at least one holds: $α$ → $β$ is trivial or $α$ is a super
key for schema R.
a.
First Normal Form
b.
Second Normal Form
c.
Third Normal Form
d.
Boyce Codd Normal Form
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Which state is occurred after the transaction has been rolled back and the database has been restored to
its state prior to the start of the transaction?
a.
Active
b.
Partially committed
c.
Aborted
d.
Committed
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Which problem can occur when a new record that is being inserted by some transaction T satisfies a
condition that a set of records accessed by another Transaction T1 must satisfy?
a.
Deletion problem
b.
Insertion problem
c.
Phantom problem
d.
Update problem
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Suppose that two users for example, two airline reservation agents submit the transactions T1 and T2 at
approximately the same time. Find how many possible outcomes when no interleaving of operations is
permitted.
a.
Many outcomes
b.
2 outcomes
c.
3 outcomes
d.
1 outcome
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Which failure refer to a list of problems that includes power or air conditioning failure, fire, theft,
sabotage, overwriting disks or tapes by mistake and mounting of a wrong tape by the operator?
a.
System error
b.
Disk failure
c.
Catastrophes
d.
Concurrency control enforcement
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Weight and profit value of each item is as given below and W $=$ 20: $p_{i}$ $=$ {30, 21, 18}, $w_{i}$ $=$ {18, 15, 10}, i $=$
{1, 2, 3}. Compute the maximum optimal profits using greedy method.
A 10 $×$ 12 matrix is implemented using array A[10][12]. If the base address of array is 200 and the word
size is 2 then compute the address of the element A[4, 7] in row major order. Assume lower bound of row and
column is 1.
a.
284
b.
326
c.
282
d.
280
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Check the valid operations on iterators:
(i) itr++ and ++itr advances the iterator itr to the next location.
(ii) *itr returns a reference to the object stored at iterator.
(iii) itr1 $!=$ itr2 returns true if iterators itr1 and itr2 refer to a different location.
a.
(i) and (ii)
b.
(i) and (iii)
c.
(ii) and (iii)
d.
All the above
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Which node pointers should be updated if a new node "B" is to be inserted in the middle of "A" and "C"
nodes of singly linked list?
(i) NEXT pointer of A and NEXT pointer of C
(ii) NEXT pointer of B and NEXT pointer of C
(iii) NEXT pointer of B
(iv) NEXT pointer of A and NEXT pointer of B
a.
(i) and (ii)
b.
(ii)
c.
(iii) and (i)
d.
(iv)
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If 2, 1, 5, 8 are the stack contents with element 2 being at the top of the stack, then what will be stack
contents after: Push(11), Pop(), Pop(), Pop(), Push(7)
a.
7, 5, 8
b.
8, 11, 7
c.
11, 2, 1
d.
5, 8, 7
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Match it:
(a) Math object 1. To obtain true or false values
(b) Number object 2. To obtaining date and time
(c) Date object 3. Numeric properties
(d) Boolean object 4. Mathematical computations
a.
(a)-4, (b)-3, (c)-2, (d)-1
b.
(a)-2, (b)-3, (c)-4, (d)-1
c.
(a)-3, (b)-4, (c)-2, (d)-1
d.
(a)-2, (b)-4, (c)-1, (d)-3
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