C:-Hydro carbon
D:-None of these
Correct Answer:- Option-C
Question29:-Drier Strainer is used in Refrigeration System for
A:-Removing dust from air flow
B:-Removing moisture and air from refrigerant
C:-Removing non-condensable gas from air
D:-Removing dust particles and moisture from refrigerant
Correct Answer:- Option-D
Question30:-Before compression, the condition of the Refrigerant is
A:-Low Pressure and Temperature Liquid
B:-High Pressure and Temperature Vapour
C:-Low Pressure and Low Temperature Gas
D:-High Pressure and Temperature Gas
Correct Answer:- Option-C
Question31:-Use of Heat exchanger is
A:-Super heats the liquid line
B:-Sub-cool the section line
C:-Heat exchanges suction line to discharge line
D:-Heat exchanges liquid line to suction line
Correct Answer:- Option-D
Question32:-Suction pressure of ice plant with *NH_(3)" Refrigerant is
A:-65 to 75 psig
B:-80 to 90 psig
C:-Below 30 psig
D:-Above 100 psig
Correct Answer:- Option-C
Question33:-In summer season the Air Conditioner trips though OLP. What is the reason ?
A:-Condenser may air block and ambient temperature is low
B:-Ambient temperature is low
C:-Condenser air block and high ambient temperature
D:-Over speed of condenser fan
Correct Answer:- Option-C
Question34:-Frost Free Refrigerator defrosting method is
A:-Hot gas defrosting
B:-Manual defrosting
C:-Water spray defrosting
D:-Electric heater defrosting
Correct Answer:- Option-D
Question35:-Water cooled condenser is used in
A:-Split air conditioner
B:-Window air conditioner
C:-Water cooler
D:-Central air conditioning plant
Correct Answer:- Option-D
Question36:-Secondary refrigerant is used in
A:-Milk Chilling Plant
B:-Chilling Plant
C:-Ice Plant
D:-All of these
Correct Answer:- Option-D
Question37:-The R.H. of air required for human comfort is
2:-25%
8:-75%
C:-50%
D:-None of these
Correct Answer:- Option-D
Question38:-On Psychrometric Chart wet bulb temperature lines are
A:-Horizontal