Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 1: 3 1: 1 9: 1 1: 9 1: 3 1: 1 9: 1 1: 9 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The human body feels comfortable when the heat stored in the body is Negative None of these Positive Zero Negative None of these Positive Zero ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is wrong? The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region The value of C.O.P. is always greater than one None of the listed here In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region The value of C.O.P. is always greater than one None of the listed here In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is correct for ammonia as a refrigerant? It requires large displacement per TR compared to fluoro carbons. It reacts with copper and its alloys. It is toxic to mucous membranes. All of these It requires large displacement per TR compared to fluoro carbons. It reacts with copper and its alloys. It is toxic to mucous membranes. All of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The optimum effective temperature for human comfort is Higher in winter than in summer Not dependent on season Same in winter and summer Lower in winter than in summer Higher in winter than in summer Not dependent on season Same in winter and summer Lower in winter than in summer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condition of refrigerant as it leaves the compressor in a vapour compression system is Superheated vapour Dry saturated vapour Wet vapour Saturated liquid Superheated vapour Dry saturated vapour Wet vapour Saturated liquid ANSWER DOWNLOAD EXAMIANS APP
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