Select the option that is related to the third word on the same basis as the second word is related to the first word. Pipe: Cylinder:: Moon : ? Earth 4
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If 5x/3 — 7/2 (2x/5 — 1/3) = 1/3, then the value of x is —5/14 4
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A boy of 50 kg is riding a scooter of 100 kg mass at a speed of v m/s. Find v (in m/s) if the kinetic energy of the scooter and the boy is 76.8 kJ. VW 32
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Find the third proportional to 24 and 60. VW 150
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Which of the following is NOT a derived unit? Mole VW
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Ifa vendor sells a coconut at 232. he incurs a 20% loss. What is the cost price of the coconut? 336 4
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Which of the following classes of chemicals can damage the ozone layer? Aromatic compounds 4
b.
Chlorofluorocarbons
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From a 50-m-long steel bar, a workman has to cut off as many 5.25-m-long pieces as possible. What decimal fraction of the whole will be left? 4 0.035
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Select the set of letters that when sequentially placed in the gaps of the given letter series will complete the series logically. a_yz_bx_ze cx z yxbez 4
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Two resistors of R Q and 15 Q are connected in parallel to get an effective resistance of 12 Q. Find R. VW 60
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The given Venn diagram shows the pet(s) that each house in a society has. How many houses have only two pets? roy 75 a] U=60 4 21
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Solve the following. V0.2025 + ¥0.12225 = VW 0.8
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A uniform meter scale weighs 50g. It is pivoted at the 70cm mark. Where should a 40 g mass be placed so that the scale is in equilibrium? At the 25 cm mark 4
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Pie chart 1 shows the share of the four partners (A, B, C and D) in Company XYZ in the year 2017. In 2018, a fifth partner, E, was added by issuing 5000 shares to E (pie chart 2), The company has issued shares more in 2018 than those in 2017. VW 25%
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Ifa? +b? = 53 and ab = 14, then find the value ofa +b. 4 5
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If the median of the numbers 9, 15, 1, 15, 14, 9, 4 and X is 11, find X. 4 fe
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a.
at an infinite distance from the earth
b.
the center of the earth
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Which of the following nations is NOT a permanent member of the United Nations Security Council? 4 France
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Two numbers are 10% and 20% less than a third number. By what percentage should the second number be increased to make it equal to the first number? 4 10%
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A truck travels 450 km in two and a half hours. Find its speed in m/s. 4 90
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VW 12.5%
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The across the ends of a resistor is directly proportional to the current through it, provided its temperature TeTIS TE Sane. charge 4
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The specific latent heat of fusion of ethyl alcohol is 100 Jg'!. Find the heat absorbed (in J) by 2.25 g of ethyl alcohol when it melts at its melting point of -114°C. VW 225
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Classical musician Vilayat Khan is associated with which musical instrument? 4 Santoor
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If ASB means A is the sister of B, A # B means A is the husband of B and A * B means A is the daughter of B, then what does P$ Q* R#S mean? S is the sister-in-law of P. 4
a.
S is the sister-in-law of P.
c.
S is the grandmother of P.
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If 1,200 J of work is done in pushing a trolley by 20 m, what was the force (in N) employed? 4 120
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Henry Cavendish discovered in 1766. oxygen 4
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Find the heat capacity of a steel vessel of mass 2.5 kg if its temperature rises by 10 degrees. Specific heat capacity of steel is 500 Jkg!K1, 200 kg 'K* 4
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A alone can paint a wall in 50 days and B alone can do it in 10 days. If A, B and C together can paint the wall in 6.25 days, then in how many days can C alone paint the wall? 4 40
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Paracetamol is found in first-aid boxes. When/why should these drugs be taken? To bring relief from asthma. 4
a.
To bring relief from asthma.
b.
To ease the symptoms of hay fever and other allergies.
c.
To ease indigestion and heartburn.
d.
To ease mild pain and reduce high temperature (fever).
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In an artificial language, ‘terake’ means ‘motherland’, ‘lorake’ means ‘mother tongue’ and ‘loroli’ means ‘long tongue’. Which word would mean ‘long jump’ in that language? akezit 4
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Binary number 101110110 is equal to decimal number VW 374
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Neither conclusion I nor II follows. 4
a.
Neither conclusion I nor II follows.
b.
Both conclusions I and II follow.
c.
Only conclusion II follows.
d.
Only conclusion I follows.
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Find the value of: 16 — (25% of (14 x 10 + 35 + 12 x 10 + 15)) VW 13
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Which of the following is an example of a second class lever? Wheel barrow VW
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Two litres of superheated water at 190°C is mixed with six litres of cold water at 20°C. Find the final equilibrium temperature (in °C) if no heat is lost. 4 55
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Henry per meter is the unit of . ‘watt per steradian 4
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a.
Only assumption I is implicit.
b.
Neither assumption I nor II is implicit.
c.
Both assumptions I and II are implicit.
d.
Only assumption II is implicit.
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Ina certain gear train, the driver has 24 teeth while the follower has 8 teeth. For every tums of the driver, the follower turns 36 times. 4 9
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Pipe A can fill a tank in 12 hours. Pipe B can empty it in X hours. If both the pipes are opened together, then the tank will be filled in 30 hours. Find X. 4 15
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Amit calculated = th of a number instead of calculating = th. His answer was greater than the correct answer by 336. Find the number. 4 1344
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VW CABD
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Only conclusion I follows. 4
a.
Only conclusion I follows.
b.
Both conclusions I and II follow.
c.
Only conclusion II follows.
d.
Neither conclusion I nor II follows.
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C said to D, “You are my sister’s husband’s mother-in-law.” How is D related to C? D is the mother of C. VW
b.
D is the mother-in-law of C.
d.
D is the daughter of C.
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is India's sole National Issuing & Guaranteeing Association for ATA Carnets (also known as 'Passport for Goods’) International Resources for Fairer Trade 4
a.
International Resources for Fairer Trade
b.
All India Management Association
c.
Confederation of Indian Industry
d.
Federation of Indian Chambers of Commerce & Industry
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Choose the word that is different from the rest. Pond 4
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Breathing in about 900 parts of in a million parts of air for a short time causes fatigue. dizziness, and headache. chloroform VW
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Who was the captain of the IPL team Chennai Super Kings, in 2018? Gautam Gambhir 4
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What is the angle between the hour hand and the minute hand of a clock at quarter past three? VW 75S
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Select the option that is related to the third word on the same basis as the second word is related to the first word. Paper: Glue:: Brick : ? 4 Mason
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Find the mass (in g) of a copper calorimeter if its temperature rises by 45° when it absorbs 3.6 kJ of heat. The specific heat capacity of copper is 0.4 Jg'K! 4 648
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A/An is an interface on a computer to which you can connect a device. port VW
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Find the missing number in the given series. B42, 9S B03; 2 VW 0.3
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‘Name the celebrity who has authored 'Mrs. Funnybones'? Bipasha Basu 4
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Which of the following folk dances is from Himachal Pradesh? Giddha 4
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In an engineering drawing, which letters written on the dimension indicates that it is extra information and NOT really required? 4 EXT
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Two cabs A and B start from town C for town D. If the distance between the two towns is 540 km and the slower taxi travelling at an average speed of 90 knvhr takes an hour more than the faster taxi, then find the speed (in kn/hr) of the faster taxi. VW 108
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are a subset of air pollution that refers to the tiny particles suspended everywhere in our atmosphere. 4 Genomes
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a.
Only conclusion I follows.
b.
All the conclusions, I, II and III, follow.
c.
Only conclusion III follows.
d.
Only conclusion I and III follow.
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A block of metal of mass 500 g has a relative density of 2.5. What will be its apparent mass when it is fully immersed in water? 300 g VW
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If Sin6 = 12/13, then find the value of 2Cot@ + 13Cos0. 35/6 VW
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If ++” represents ‘x’, ‘+" represents ‘+”, —’ represents ‘+" and ‘x’ represents ‘—’, then find the value of the following expression. 8+4215=3 «1 VW 36
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Choose the letter cluster that is different from the rest. MOQ VW
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Find the mass (in kg) of kerosene filled up to the brim in a tank of dimensions 5 m 2 m x 1 m. (Density of kerosene is 800 kg/m) 12,500 4
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A vendor buys a certain number of bananas at 8 pieces for ‘5 and sells them at 5 pieces for ‘8. What will be his percentage profit? 4 144%
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Which element is mostly provided by grains, nuts and chocolates in our diet? Zine 4
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The area of AO size paper is 10,000 cm? VW
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The weights of three boxes are 3 kg, 8 kg and 12 kg. Which of the following CANNOT be the total weight, in kg, of any SOTIbINAHOR OLAS BOXES 4 20
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Find the mechanical advantage of a pulley system if it has an efficiency of 60%. The load lifts by 3 m when the rope is pulled by 12 m. 4 48
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‘Whaat is the area (in cm2) of a regular hexagon of side 10 cm? 753 4
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4 I
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Find the density (in kg/m) of a piece of wood of dimensions 6 cm « 8 cm x 5 cm, and weight 1.92 N. (Use g=10m/s) 4 300
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Find the least common multiple of 56 and 50. 4 800
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The total surface area of a cuboid is 236 cm2. Its length is 8 cm and height is 6 cm. Find its breadth (in cm). VW 5
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Which of the following gives the correct relation between power 'P’, resistance 'R’ and charge 'Q' flowing through a wire in 4? seconds? PR=QIt 4
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The ratio of the present ages of Leela and her mother is 3:8. The mother was 25 years old when Leela was born. Find the mother’s present age (in years). 4 52
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The hotel Taj Lake Palace, built in the middle of Lake Pichola. is in which city? Jaipur 4
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L is thrice as good a workman as M, and together, they finish a task in 12 days. In how many days will L alone finish ‘the Sammie task? 4 40
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Part of a sentence has been divided into three segments, which are jumbled up and given along with the unjumbled part. Rearrange the parts of the sentence in correct order. I'd just remembered that our X: every once in a while, so our changing Y: rooms were movable, on wheels Z: owner liked to change the decor of the boutique 4 YXZ
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A pilgrim starts from her house to visit various places. She walks 13 km towards the east, then tums towards the north and walks 11 km, then turns towards the west and walks 7 km, then tums towards the south and walks 6 km and finally tums to her right and walks 6 km. Where is she now with respect to her starting position? 5 km south 4
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If 14#2=80, 10#4=70 and 20 # 6 = 130, then find the value of 8 # 12. 4 2
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° Celsius = 167 Fahrenheit 4 348
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Acceleration due to gravity on Jupiter is two and a half times that on earth. How much would a 250 kg satellite weigh (in N) on Jupiter? (acceleration due to gravity on earth = 10m/s) 4 10
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The sum of binary numbers 1100100 and 1101110 is . VW 11010010
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Find the efficiency of a pump (rated 400 W) that can lift 500 kg of water by 30 m in 10 minutes. (Use g = 10m/s?) 4 92.00%
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Ina certain code, EXACT is written as 91685 and MILK is written as 7243. Using the same code, MELT will be written as ¥ 4 9285
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Choose the figure that is different from the rest. K WQ R OP | M X VW
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Find the resistance of the wire (in kQ) through which a 5 mA current flows when 500 V of potential difference is applied across it 2,500 4
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A diagram is a schematic drawing that shows the relationships in a system. using simple shapes for the entities. 4 ‘Venn
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If the compound interest received on a certain amount in the first year is 71,440, what will be the compound interest for the second year on the same principal at a 10% rate of interest? 1,512 4
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Find the slope of the line joining the points (3,—4) and (5.2). 1/2 4
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Moore's Law is a rule of thumb stated by Intel co-founder Gordon Moore that the number of transistors on a chip doubles every months. 4 24
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The Directive Principles of State Policy in India's Constitution are borrowed from the constitution of. Germany 4
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A projection is an oblique projection in which the depth of the object is shown in full size. perspective 4
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The notation 2x06 means . 2 circles of diameter 6 units VW
a.
2 circles of diameter 6 units
b.
Scale the circle of diameter 6 units by a factor of 2
c.
2 circles of radius 6 units
d.
Scale the circle of radius 6 units by a factor of 2
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A train running at a speed of 64 km/h takes 50 min to travel a certain distance. By how much should it increase its speed (in km/h) to travel the same distance in 40 min? 4 80
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00
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Which one of the following is related with the swage of a copper tube? Gap between copper tube VW
a.
Gap between copper tube
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What is the reason for condensed water of cassette air conditioner getting accumulated in the evaporator? Pump not working 4
c.
Humidity more than normal
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The capacity of visible cooler is expressed in k.cal/TR 4
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Which is the secondary refrigerant in an ice plant Air 4
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Specific heat capacity of a substance = Mass of the substance * heat capacity 4
a.
Mass of the substance * heat capacity
b.
Mass of the substance + heat capacity
c.
Mass of the substance - heat capacity
d.
Heat capacity / mass of the substance
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If the freezer box temperature is — 23 °C, what will be the temperature in Fahrenheit? —7.4° 4
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In which region does a UJT operate after reaching peak point? Positive resistance 4
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Which of the following will happen if suction pressure is reduced in refrigeration cycle? Evaporation temperature will decrease VW
a.
Evaporation temperature will decrease
b.
Compressor capacity is increased as vapour is lighter
c.
Power consumption is reduced per ton of refrigeration
d.
Evaporation Temperature will increase
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Reversed cornot cycle is used in refrigerator Electrolux 4
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Magnetic relay coil is connected in series with compressor’s : body 4
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Which protective device disconnects the compressor sensing pressure? Selector switch 4
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Which of the following is a commonly used refrigerant in commercial ice plant? Ammonia VW
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b.
Cooling and Dehumidification
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When retrofitting an R-12 car air conditioner with an R-134, the charge amount will be of R-12 50% 4
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Humidification is the process of addition of moisture in air at constant wet bulb temperature 4
a.
constant wet bulb temperature
c.
constant dry bulb temperature
d.
Constant dew point temperature
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Which type of joint is shown in the given figure? Straight joint VW
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What do you mean by ‘condensing temperature’ in the context of refrigeration? Temperature of freezing zone 4
a.
Temperature of freezing zone
b.
Temperature of cooling medium
c.
Temperature at which refrigerant gas becomes liquid
d.
Temperature of evaporator
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Which pulley of a car A/C compressor always rotates with the engine, either when the air conditioner is on or off? Rotary pulley 4
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Low pressure liquid refrigerant from the expansion valve enters into the evaporator and changes into: low pressure vapour refrigerant VW
a.
low pressure vapour refrigerant
b.
low pressure liquid and vapour refrigerant
c.
high pressure liquid refrigerant
d.
medium pressure liquid refrigerant
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Which of the following is a single edge cutting tool used for chipping metal? Scrapper 4
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Which tool is used to remove a high spot from a plain metal surface? Chisel 4
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Oil separator is fitted between. On the suction line 4
b.
at the receiver outlet
c.
compressor and condenser
d.
Condenser and evaporator
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Which of the following is an important factor for comfort of the occupancies in an air-conditioned environment? Refrigerant charging 4
b.
Cleaning of the indoor A/C unit
c.
Cleaning of the outdoor A/C unit
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Sub cooling is process of cooling the refrigerant in vapor compression system After compression 4
b.
Before refrigerant control
c.
After refrigerant control
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At the time of retrofitting an R-12 refrigerator with HC blend, how much refrigerant will be charged? 40% of R-12 VW
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What will be the result if the gap in between the male and female tube is more than suggested? Joint will be strong 4
b.
Refrigerant flow will be smooth
c.
Filler metal may block the tube
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When excessive refrigerant is in the cycle of a car air conditioner, it results in : LOW PRESS. 0.8 kg/cm? HIGH PRESS. 8-9 kg/cm” VW
a.
LOW PRESS. 0.8 kg/cm? HIGH PRESS. 8-9 kg/cm”
c.
LOW PRESS. 3.5 kg/cm? HIGH PRESS. 25 kg/cm?
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When a filament lamp draws higher voltages, resistance of the lamp will : remain constant 4
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In the context of refrigeration, which instrument is used for checking the vacuum, charging status and pressure, among other things? Low pressure gauge 4
c.
Gauge manifold fitted with gauges
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In frost-free refrigerators, frosting is done by : De-emerging unit 4
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If HFC and lubricant are intimately mixed with moisture inside the refrigeration cycle . the property of the lubricant will change 4
a.
the property of the lubricant will change
b.
ice crystals will form
c.
pressure will become low
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What combination and proportion of gases will be used to set a neutral flame in gas welding? Less oxygen than acetylene 4
a.
Less oxygen than acetylene
b.
No acetylene, only oxygen
c.
More oxygen than acetylene
d.
Oxygen and acetylene in equal proportion
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The cleaning process of a refrigeration cycle involves cleaning of refrigerant 4
b.
deposited solid and oil
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Auto defrost is operated by : Thermostat 4
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Before retrofit, a refrigerator with HC is carefully assessed to check whether it needs to meet better performance or not 4
a.
needs to meet better performance or not
b.
is safe for HC blend conversion or not
c.
is safe for HFC conversion or not
d.
is safe for lubricant or not
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In window type air conditioner when temperature is enriched in the room, which of the following components disconnects the compressor from the power source? Thermostat 4
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In an IC, a SiO, layer acts as . aresistive conductor 4
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How do you remove non-condensable gas and moisture from an air conditioning system? By evacuation using system compressor 4
a.
By evacuation using system compressor
b.
By deep evacuation using two-stage rotary vent pump
c.
By evacuation using the old compressor
d.
By evacuation using single-stage vacuum pump
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Which gauge is used for checking the pressure in an Air Conditioning system? Bourdon type Pressure gauge 4
a.
Bourdon type Pressure gauge
d.
Bourdon type compound gauge
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In frost-free refrigerators, when does cooling NOT spread inside the cabinet? When the thermostat is not working 4
a.
When the thermostat is not working
b.
When the evaporator fan is not working
c.
When the heater is not working
d.
When the bi-metal is not working
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At the time of installation more than 150 mm gap should be maintained in between ceiling and IDU VW
d.
condenser and fan blade
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The chemical formula of R-134a is CoH2F3 4
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What is the state of refrigerant after it comes out of dry type evaporator? 4 wet state
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Generally, which type of condenser is needed for chemical de-scaling? Forced air-cooled condenser 4
a.
Forced air-cooled condenser
b.
Shell and tube bunk condenser
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The evaporative tube of water cooler is fitted : inside the storage tank 4
a.
inside the storage tank
b.
away from the storage tank
d.
outside the storage tank
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‘What is this welding symbol called? Fillet 4
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The process of heat rejection by the refrigerant is achieved during which of the following refrigeration cycles? Condenser VW
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What is the reason for formation of solid ice on the evaporator of a frost-free refrigerator? Auto defrosting system failure VW
a.
Auto defrosting system failure
c.
Leakage in door gasket
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What is the name of the hand tool that has small sharp teeth in rows and is used for sharpening or shaping material? Hacksaw 4
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How should the gap between the compressor housing and shaft seal refrigerant escaping route be sealed? With M-seal VW
b.
With a thin layer of compressor self-lubricating oil
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Which condenser needs De-scaling? ‘Water cooled condenser VW
a.
‘Water cooled condenser
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If the end of a copper tube is NOT straightened, then : refrigerant temperature may go down 4
a.
refrigerant temperature may go down
b.
pressure will be increased
d.
Swaging and flaring will be defective
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When refrigerant passes through the evaporating zone, heat is absorbed 4
d.
neither absorbed nor added
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Pyrometer is an instrument used to measure . Relative Humidity 4
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In which of the following states will an R-22 refrigerant charge in a split air conditioning unit? Liquid state 4
b.
Saturated liquid state
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Which of the following components is used to liquidate refrigerant in the deep freezer? Condenser VW
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Why deep vacuuming is needed in an AC? To clean oil 4
b.
To remove rust or corrosion
c.
To remove moisture and non-condensable gases
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Which is the secondary refrigerant in an window air conditioner Ammonia 4
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Ina riveted joint, a cover plate is placed to cover two lower plates. This type of joint is known as : Butt joint VW
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What is the Ammonia refrigerant boiling temperature 30°C 4
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When the bi-metal of a frost-free refrigerator is opened, will connect. heater VW
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Which device of a car air conditioner increases and decreases fan speed? Thermo volume switch 4
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Bent snips are used for : making holes on the sheet 4
a.
making holes on the sheet
b.
cutting the sheet along curved lines
d.
removing burrs from the corner
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One ton of refrigeration is equivalent to melting of 1000 kg of ice in. 24 hours VW
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To start a single-phase induction motor, which type of starting capacitors are used. Ceramic capacitor 4
b.
Electrolytic capacitor
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At the time of retrofitting, which electrical component should be replaced with a sealed one? Retrofit with HC or their blend VW
a.
Retrofit with HC or their blend
b.
Retrofit with HFC blend
c.
Retrofit with HFC only
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Which tool is used for laying out a large circle on a sheet? Tramme! VW
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How to identify the presence of small leakage in refrigeration cycle? Hearing hissing sound VW
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Why is it necessary to maintain a gap between wall and the ODU at the time of installation? For easy servicing 4
b.
For proper air circulation
c.
To prevent dust accumulation
d.
To prevent heat radiation
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What will be the status of the refrigerant at the outlet of a dry type evaporator? 4 Wet state
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Which of the following deals with the cleaning of refrigeration cycle? Physical cleaning 4
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Where is a Britannia Joint used? In Underground Wiring 4
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What should be the gap between the rotary pulley and the clutch plate? 4 2.0 mm to 2.5 mm
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For checking the performance of an AC, one must check outer look of the cabinet 4
a.
outer look of the cabinet
b.
inside temperature of cabinet and current drawn.
c.
speed of the exhaust fan
d.
for abnormal sound and speed of the exhaust fan
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