  # 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 Question 2

# The specific heat of ideal gas depend on Question 3

# Thermal power plant works on Question 4

# In an isothermal process, the internal energy of molecules Question 5

# For reversible adiabatic process, change in entropy is 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 kJrequired for this process is 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 Question 8

# A Bell-Coleman cycle is a reversed 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 Question 10

# The materials having same elastic properties in all directions are called OR