Refrigeration and Air Conditioning For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is ________ that for counter flow. None of these Less than Equal to Greater than None of these Less than Equal to Greater than ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning While designing the refrigeration system of an aircraft, the prime consideration is that the Mass of refrigerant circulated in the system is low System has high C.O.P. Mass of the refrigeration equipment is low Power per TR is low Mass of refrigerant circulated in the system is low System has high C.O.P. Mass of the refrigeration equipment is low Power per TR is low ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called None of the listed here Sub-cooling or under-cooling Normal cooling Super-cooling None of the listed here Sub-cooling or under-cooling Normal cooling Super-cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The material of pipe lines for a system using Freon as a refrigerant should be Brass Steel Aluminium Copper Brass Steel Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is correct for ammonia as a refrigerant? 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. It reacts with copper and its alloys. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of Steel Brass Copper Aluminium Steel Brass Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
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