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SSC JE 2019 - 20 Technical Quiz 32

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Question 1

A carnot heat pump works between temperature limits of 177 ºC and 27 ºC. Its COP is __.

Question 2

There is a two-stage compressor with ideal intercooling. The intermediate pressure (P₂) in terms of condenser pressure (P₁) and evaporator pressure (P₃) for the minimum work is

Question 3

Rankine’s theory is good for____.

Question 4

In the calculation of induced shear stress in helical springs, the Wahl’s correction factor us used to take care of

Question 5

The wet bulb depression is zero, when relative humidity is equal to

Question 6

Which of the following measuring device is used to measure cutting force.

Question 7

Boundary layer flow seperates from the surface if

Question 8

A body that reflects all the incident thermal radiations is called a

Question 9

A 2kW electric resistance heater submerged in 5 kg water is turned on and kept on for 10 min. During the process 300 kJ of heat is lost from the water the temperature rise of water is.

Question 10

What is the velocity of steam (in m/sec) at exit across a steam whistle which is perfectly insulated and does not perform any work and undergoes a drop of 0.2 kJ/kg in enthalpy from entry to exit?

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ESE & GATE ME General

Apr 19ESE & GATE ME