GATE XL kind:question PYQs & Answers — Page 99

Questions 981–990 of 1235. Imported answers require independent review unless marked reviewed.

Buffalo milk having density of 1030 kg m⁻³ is homogenized with a pressure of 30 MPa. Given, acceleration due to gravity as 9.81 m s⁻² and assuming no pressure loss, the velocity (m s⁻¹) of the milk flowing through the homogenizer valve will be __________ (round off to 2 decimal places).

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Potato slices have been dehydrated from an initial solid content of 12% to a final solid content of 94%. If the peeling and other losses are to the tune of 10%, final yield (per cent) of the dried chips per ton of fresh potato taken is __________ (round off to 2 decimal places).

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A mixed fruit beverage with 12 °Brix having specific heat of 4298 J kg⁻¹ K⁻¹ is being heated from 30 °C to 95 °C for pasteurization at a flow rate of 1000 L h⁻¹ in a tubular heat exchanger. Steam at 100 °C is used as heating medium which is converted into condensate at 100 °C. If the density of beverage is 1075 kg m⁻³ and the latent heat of steam at the given temperature is 2257 kJ kg⁻¹, the mass flow rate of steam (kg min⁻¹) is ______ (round off to 2 decimal places).

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Room air is at 40 °C with 60% relative humidity. Saturated vapour pressure of water at 40 °C is 7.375 kPa. Humid volume of air (m³ per kg of dry air) is ____________ (round off to 3 decimal places).

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Freezing of 100 mm spherical meat ball with 60% moisture at 35 °C is being done in an air blast freezer maintained at -45 °C. Given, latent heat of fusion for water is 333.2 kJ kg⁻¹, thermal conductivity of meat is 1.5 W m⁻¹ °C⁻¹, convective heat transfer coefficient is 40 W m⁻² °C⁻¹, density of frozen meat is 980 kg m⁻³ and initial freezing temperature of meat ball is -10 °C. Using Plank’s equation, freezing time (h) is ____________ (round off to 2 decimal places).

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“Going by the ______ that many hands make light work, the school ______ involved all the students in the task.”

The words that best fill the blanks in the above sentence are

Your answerChoose one option.

principle, principal

principal, principle

principle, principle

principal, principal

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“Her ______ should not be confused with miserliness; she is ever willing to assist those in need.”

The word that best fills the blank in the above sentence is

Your answerChoose one option.

cleanliness

punctuality

frugality

greatness

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Seven machines take 7 minutes to make 7 identical toys. At the same rate, how many minutes would it take for 100 machines to make 100 toys?

Your answerChoose one option.

100

700

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A rectangle becomes a square when its length and breadth are reduced by 10 m and 5 m, respectively. During this process, the rectangle loses 650 m² of area. What is the area of the original rectangle in square meters?

Your answerChoose one option.

1125

250

294

450

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A number consists of two digits. The sum of the digits is 9. If 45 is subtracted from the number, its digits are interchanged. What is the number?

Your answerChoose one option.

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GATE XL kind:question PYQs

Question 16

Question 17

Question 18

Question 19

Question 20

Question 1

Question 2

Question 3

Question 4

Question 5