  # ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2018

Instructions

For the following questions answer them individually

Question 1

# Carnot Cycle consists of Question 2

# One reversible heat engine operates between $$1600^\circ$$K and $$T_{2}^\circ$$K and another reversible heat engine operates between $$T_{2}^\circ$$K and $$400^\circ$$K. If both the engines have the same heat input and output, then temperature $$T_{2}^\circ$$ is equal to Question 3

# Isentropic flow is Question 4

# Reversed Joule cycle is known as Question 5

# The thermal efficiency of Gas turbine plant is Question 6

# A 100 W electric bulb was switched on in a $$2.5 m \times 3m \times 3 m$$ size thermally insulated room having temperature of $$20^\circ$$C. The room temperature at the end of 24 hrs. will be Question 7

# A solar energy based heat engine which receives 80 kJ of heat at $$100^\circ$$C and rejects 70 kJ of heat to the ambient at $$30^\circ$$C is to be designed. The thermal efficiency of heat engine is Question 8

# A mixure of gases expand from $$0.03 m^{3} to 0.06 m^{3}$$ at constant pressure of 1 MPA and absorb 84 kJ of heat during the process. The change in internal energy of the mixture is Question 9

# If the concentrated load applied at the free end of a cantilever beam is doubled along with its length and moment of inertia also, then the deflection at free end will increase by Question 10

# In the case of a beam simply supported at both ends, if the same load instead of being concentrated at centre is distributed uniformly throughout the length, then deflection at centre will get reduced by OR