GATE XE discipline:engineering-sciences PYQs & Answers — Page 108

Questions 1071–1080 of 1772. Imported answers require independent review unless marked reviewed.

Consider a layer of atmosphere between 5 and 6 km height. The downwelling longwave radiation at 5 and 6 km is 240 and 230 Wm⁻², respectively. The upwelling longwave radiation at these heights is 260 and 240 Wm⁻², respectively. The longwave heating rate in this layer is ____ K per day. (Round off to one decimal place.)

Take the average density of air in this layer to be 0.5 kg m⁻³; Specific heat capacity of air at constant pressure = 1000 J kg⁻¹ K⁻¹.

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A spherical asteroid, revolving around the sun in a circular orbit, is in radiative balance. Suddenly, the asteroid enters the shadow of a planet and solar radiation is cut off. Assuming that the asteroid emits as a blackbody in the longwave regime, the time taken to reduce the average temperature of the asteroid by 0.5 K is ____ seconds (round off to the nearest integer). Ignore the temporal change in radiation emitted by the asteroid during this cooling period. The physical properties of the asteroid are: diameter = 2 m, density = 3000 kg m⁻³, specific heat = 200 J kg⁻¹ K⁻¹ and albedo = 0.8 in shortwave radiation. Take the solar constant = 500 W m⁻², Stefan-Boltzmann constant = 5.67 × 10⁻⁸ W m⁻² K⁻⁴.

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Rajiv Gandhi Khel Ratna Award was conferred ____ Mary Kom, a six-time world champion in boxing, recently in a ceremony ____ the Rashtrapati Bhawan (the President’s official residence) in New Delhi.

Your answerChoose one option.

with, at

on, in

on, at

to, at

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Despite a string of poor performances, the chances of K. L. Rahul’s selection in the team are _____.

Your answerChoose one option.

slim

bright

obvious

uncertain

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Select the word that fits the analogy:

Cover : Uncover :: Associate : _____

Your answerChoose one option.

Unassociate

Inassociate

Misassociate

Dissociate

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Hit by floods, the kharif (summer sown) crops in various parts of the country have been affected. Officials believe that the loss in production of the kharif crops can be recovered in the output of the rabi (winter sown) crops so that the country can achieve its food-grain production target of 291 million tons in the crop year 2019-20 (July-June). They are hopeful that good rains in July-August will help the soil retain moisture for a longer period, helping winter sown crops such as wheat and pulses during the November-February period.

Which of the following statements can be inferred from the given passage?

Your answerChoose one option.

Officials declared that the food-grain production target will be met due to good rains.

Officials want the food-grain production target to be met by the November-February period.

Officials feel that the food-grain production target cannot be met due to floods.

Officials hope that the food-grain production target will be met due to a good rabi produce.

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The difference between the sum of the first

natural numbers and the sum of the first

odd natural numbers is _____.

Your answerChoose one option.

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Repo rate is the rate at which Reserve Bank of India (RBI) lends commercial banks, and reverse repo rate is the rate at which RBI borrows money from commercial banks.

Which of the following statements can be inferred from the above page?

Your answerChoose one option.

Decrease in repo rate will increase cost of borrowing and decrease lending by commercial banks.

Increase in repo rate will decrease cost of borrowing and increase lending by commercial banks.

Increase in repo rate will decrease cost of borrowing and decrease lending by commercial banks.

Decrease in repo rate will decrease cost of borrowing and increase lending by commercial banks.

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P, Q, R, S, T, U, V, and W are seated around a circular table. I. S is seated opposite to W. II. U is seated at the second place to the right of R. III. T is seated at the third place to the left of R. IV. V is a neighbour of S.

Which of the following must be true?

Your answerChoose one option.

P is a neighbour of R.

Q is a neighbour of R.

P is not seated opposite to Q.

R is the left neighbour of S.

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The distance between Delhi and Agra is 233 km. A car

started travelling from Delhi to Agra and another car

started from Agra to Delhi along the same road 1 hour after the car

started. The two cars crossed each other 75 minutes after the car

started. Both cars were travelling at constant speed. The speed of car

was 10 km/hr more than the speed of car

. How many kilometers had car

traveled when the cars crossed each other?

Your answerChoose one option.

66.6

75.2

88.2

116.5

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GATE XE discipline:engineering-sciences PYQs

Question 21

Question 22

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8