HVAC Study Guide Practice exam Questions and answers past papers,
Exams of Mechanical Engineering
Propane and Butane are _______ than air: - ANSWERHeavier
What will be the resistance in the circuit if the supply voltage is 30V and
current flowing through the circuit is 5A - ANSWER6 ohms
Temperature at which oil starts to produce a waxy substance that may
interfere with the refrigeration system - ANSWERFloc point
What manifold gauge set is used to charge, evacuate, add oil and recover
refrigerant from a refrigeration and air conditioning system? - ANSWERYellow
hose
Where is the oil separator located? - ANSWERDischarge line
Higher the ambient temperatures, ____ will be the evacuation time of the
refrigerants from the system - ANSWERLesser
1 Watt is equal to - ANSWER3.41 Btu's
Exams of Mechanical Engineering
Propane and Butane are _______ than air: - ANSWERHeavier
What will be the resistance in the circuit if the supply voltage is 30V and
current flowing through the circuit is 5A - ANSWER6 ohms
Temperature at which oil starts to produce a waxy substance that may
interfere with the refrigeration system - ANSWERFloc point
What manifold gauge set is used to charge, evacuate, add oil and recover
refrigerant from a refrigeration and air conditioning system? - ANSWERYellow
hose
Where is the oil separator located? - ANSWERDischarge line
Higher the ambient temperatures, ____ will be the evacuation time of the
refrigerants from the system - ANSWERLesser
1 Watt is equal to - ANSWER3.41 Btu's
