Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Mechanical Engineering
»
Heat Transfer, Refrigeration and Air Conditioning
Which of the following statement is correct?
A grey body is one which absorbs all radiations incident on it.
At thermal equilibrium, the emissivity and absorptivity are same.
The energy absorbed by a body to the total energy falling on it, is called emissivity.
A perfect body is one which is black in colour.
Correct Answer:
At thermal equilibrium, the emissivity and absorptivity are same.
← Previous Question
Next Question→
More Questions from
Heat Transfer, Refrigeration and Air Conditioning
The sulphur sticks, in case of leakage of ammonia refrigerant, gives white smoke.
The transfer of heat from one body to another takes place only when there is a temperature difference between the bodies.
During gas charging in an ammonia vapour compression system, the connection is made at the compressor outlet.
The water, alcohol and ammonia have same refrigerating effect at different altitudes.
The wet bulb temperature at 100% relative humidity is __________ dew point temperature.
Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity)
The counter-current flow heat exchanger can transfer __________ heat than parallel flow heat exchanger.
The natural convection air cooled condensers are used in
The conditioned air supplied to the room must have the capacity to take up
A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments