The unit of Stefan-Boltzmann constant is

More Questions from Heat Transfer, Refrigeration and Air Conditioning

• The coefficient of performance (C.O.P.) is the reciprocal of the efficiency of a heat engine.
• The ratio of the energy absorbed by the body to the total energy falling on it, is called
• The emissive power of a body depends upon its
• 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
• In a psychrometric chart, specific humidity (moisture content) lines are
• The rate of heat flow through a body is . The term x/kA is known as
• Which of the following refrigerant has the lowest boiling point?
• In a domestic vapour compression refrigerator, the refrigerant commonly used is
• The human body feels comfortable when the heat stored in the body is
• The freezing point of sulphur dioxide is

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