ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2017

Instructions

For the following questions answer them individually

Question 1

An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minute spark. The contents of vessel experience

Video Solution


Question 2

The specific heat of ideal gas depend on

Video Solution


Question 3

Thermal power plant works on

Video Solution


Question 4

In an isothermal process, the internal energy of molecules

Video Solution


Question 5

For reversible adiabatic process, change in entropy is

Video Solution


Question 6

A cylinder contains 5 m$$^3$$ of an ideal gas at a pressure of 1. This gas is compressed in a reversible isothermal process till its pressure increases to 5 bar. The work in kJ
required for this process is

Video Solution


Question 7

A steel ball of mass 1 kg and specific heat 0.4 kj/kg is at a temperature of 60 deg C. It is dropped into 1 kg of water at 20 deg C. The final steady temperature of water is

Video Solution


Question 8

A Bell-Coleman cycle is a reversed

Video Solution


Question 9

A free bar of length l is uniformly heated from $$0^\circ C$$ to a temperature $$t^\circ C$$. $$\alpha$$ is the coefficient of linear expansion and E is the modulus of elasticity. The stress in the bar is

Video Solution


Question 10

The materials having same elastic properties in all directions are called

Video Solution


Register with

OR

Boost your Prep!

Download App