[Download PDF] ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2014 Paper with Solutions

Instructions

For the following questions answer them individually

Question 51

Generation of heating at one junction and cooling at other by passing direct current through a pair of dissimilar materials is

Video Solution

Question 52

Power consumption of centrifugal fans varies with speed (N) and diameter (D) as

Video Solution

Question 53

Sol-air temperature for a wall of absorptivity 0.9, exposed to ambient temperature of $$35^\circ C$$, solar radiation of 260 W/sqm, outside heat transfer coefficient 23 W/sqm K is

Video Solution

Question 54

The recovery factor in flow of gases is a function of

Video Solution

Question 55

Adiabatic wall temperature is

Video Solution

Question 56

A composite slab has two layers of different materials having thermal conductivities k and 2k. If each layer has the same thickness, the equivalent thermal conductivity of the slab is

Video Solution

Question 57

Whena liquid flows through a tube with subcooled or saturated boiling the processis known as

Video Solution

Question 58

For filmwise condensation, the heat transfer coefficient will be equal whether the tube is horizontal or vertical, when the ratio of length to diameter is

Video Solution

Question 59

Insulated tip temperature of a rectangular longitudinalfin will be equal to

Video Solution

Question 60

The characteristic length computing Grashof number in the case of a horizontal cylinder is

Video Solution

CAT Content

ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2014

ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2014

Generation of heating at one junction and cooling at other by passing direct current through a pair of dissimilar materials is

Power consumption of centrifugal fans varies with speed (N) and diameter (D) as

Sol-air temperature for a wall of absorptivity 0.9, exposed to ambient temperature of $$35^\circ C$$, solar radiation of 260 W/sqm, outside heat transfer coefficient 23 W/sqm K is

The recovery factor in flow of gases is a function of

Adiabatic wall temperature is

A composite slab has two layers of different materials having thermal conductivities k and 2k. If each layer has the same thickness, the equivalent thermal conductivity of the slab is

Whena liquid flows through a tube with subcooled or saturated boiling the processis known as

For filmwise condensation, the heat transfer coefficient will be equal whether the tube is horizontal or vertical, when the ratio of length to diameter is

Insulated tip temperature of a rectangular longitudinalfin will be equal to

The characteristic length computing Grashof number in the case of a horizontal cylinder is

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