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ESE 2019: Thermodynamics Quiz-4

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Question 1

A: A Refrigerator can be made to use as a Heat pump.
R: Heat pump and refrigerator both work on reverse Carnot cycle.

Question 2

A: For maximum cycle temperature and heat rejection, an Otto cycle is more efficient than Diesel cycle.
R: In Otto cycle, heat addition is isochoric, and in diesel engine heat addition is isobaric.

Question 3

A: 1 Ton is a unit of refrigeration
R: 1 Ton of refrigeration implies the heat removal required to produce 1 ton ice at 0C from 1 ton water at 0C within 1 day.

Question 4

A cyclic heat conversion system develops in an inventor produces power, refrigeration and heat output through interaction with thermal reservoirs as shown. Which among the following statements proposed for the system?

Question 5

In PV diagram shown, find total work done by gas during the cycle?

Question 6

The delay period in CI engine depends upon which of the following?

Question 7

Statement (i): Both pressure and temperature across the normal shock increase.
Statement (ii): The stagnation pressure across the normal shock decreases.

Question 8

A certain air has DBT 35^oC and DPT of 20^oC, the corresponding saturation pressure of water being 5.628 kPa and 2.33 kPa respectively. When the atmospheric pressure is assumed as 1.0132 bar, the specific humidity of air will be

Question 9

If the specific humidity of moist air remains the same but its dry bulb temperature increases, its dew point temperature

Question 10

Air is passed through a cooling coil at a temperature of -5^oC. If the temperature of air drops from 25^oC to 10^oC, the Bypass factor of the coil is

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ESE & GATE ME Thermodynamics

Jun 2ESE & GATE ME