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In the following questions four alternatives are given for the idiom/phrase italicised and underlined in the sentence. Choose the alternative which best expresses the meaning of idiom/phrase.

Q1: Jaya had a chequered career. since I first knew him as an office assistant in the insurance company.

A A career which helped him make lot of money

B Had a variety of jobs and experiences

C A career where he signed a lot of cheques

D Did odd jobs

Q2: Oil separator in a refrigeration cycle is installed

A between condenser and evaporator

B between condenser and expansion valve

C between compressor and condenser

D before compressor

Q3: In larger industrial and commercial reciprocating compression systems, refrigerent widely used is

A R-12

B carbon dioxide

C ammonia

D sulphur dioxide

Q4: During sensible cooling of air, specific humidity

A remains constant

B increases

C decreases

Q5: The transfer of heat by molecular collision is known as

A convection

B radiation

C none of these

D conduction

Q6: When tc1 and tc2 are the temperatures of cold fluid at entry and exit respectively and th1 and th2 are the temperatures of hot fluid at entry and exit point, and cold fluid has lower heat capacity rate as compared to hot fluid, then effectiveness of the heat exchanger is given by

A

B

C

D

Q7: In a psychrometric chart, specific humidity (moisture content) lines are

A horizontal and uniformly spaced

B vertical and uniformly spaced

C horizontal and non-uniformly spaced

D curved lines

Q8: The expression Q = ρ AT4 is called

A Newton-Rikhmann equation

B Joseph-Stefan equation

C Fourier equation

D Stefan-Boltzmann equation

Q9: Thermal conductivity of solid metals __________ with rise in temperature.

A remains same

B increases

C decreases

Q10: The horizontal and non-uniformly spaced lines on a psychrometric chart indicates

A specific humidity

B wet bulb temperature

C dry bulb temperature

D dew point temperature