Refrigeration and Air Conditioning The lowest thermal diffusivity is of Iron Aluminium Rubber Lead Iron Aluminium Rubber Lead ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The emissivity of a polished silver body is ____ as compared to black body. Same Very low Low High Same Very low Low High ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The optimum effective temperature for human comfort is Same in winter and summer Higher in winter than in summer Lower in winter than in summer Not dependent on season Same in winter and summer Higher in winter than in summer Lower in winter than in summer Not dependent on season ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant is dry saturated vapour Before entering the condenser After leaving the compressor Before entering the compressor After leaving the condenser Before entering the condenser After leaving the compressor Before entering the compressor After leaving the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative humidity) 22°C DBT and 60% RH 25°C DBT and 40% RH 20°C DBT and 80% RH 25°C DBT and 100% RH 22°C DBT and 60% RH 25°C DBT and 40% RH 20°C DBT and 80% RH 25°C DBT and 100% RH ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is correct for ammonia as a refrigerant? It reacts with copper and its alloys. All of these It is toxic to mucous membranes. It requires large displacement per TR compared to fluoro carbons. It reacts with copper and its alloys. All of these It is toxic to mucous membranes. It requires large displacement per TR compared to fluoro carbons. ANSWER DOWNLOAD EXAMIANS APP
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