RMO REVIEW TEST QUESTIONS & ANSWERS 2025
RATED 100% CORRECT!!
Capacitors have the ability to?
A) Store electrical energy that can be used to start motors
B) Vary the resistance in ain a circuit
C) limit the possibility of shock hazard
D) start waters by reducing mechanical resistance Answer - A) Store electrical
energy that can be used to start motors
Convert 115 Celsius to Fahrenheit?
A) 241 F
B) 265 F
C) 239 F
D) 221 F Answer - C) 239 F
F=1.8x(°C)+32
Convert 87°F into the corresponding temperature in centigrade
A) 188 C
B) 99 C
C) 30.5 C
D) 28.5 C Answer - C) 30.5 C
C=(°F-32)/1.8
,How many BTUs must be added to vaporize 1 pound water?
A) 144
B) 1310
C) 970
D) 1 Answer - C) 970
"Class B" fire extinguishers are intended for?
A) electrical equipment
B) combustible metals
C) wood or paper
D) flammable liquids Answer - D) flammable liquids
An office building has three chillers in a basement equipment room. Where
should the emergency break glass be located?
A) at the entrance to the basement mechanical room
B) on one of the chillers
C) on the electrical distribution panel located in the room
D) at the fire warden station Answer - A) at the entrance to the basement
mechanical room
A partially blocked liquid line may cause?
A) High temperatures between blockage and the metering device
B) Frost between blockage and metering device
C) Frost between receivers and blockage
D) High temperatures between compressor and evaporator Answer - B) Frost
between blockage and metering device
, The flashpoint of refrigerant oil should be?
A) lower than the evaporator temperature
B) lower than the compressor discharge temperature
C) higher than the compressor discharge temperature
D) higher than the evaporator temperature Answer - C) higher than the
compressor discharge temperature
Which of the following is true when cleaning a shell and tube condenser?
A) The heads must be removed in order to clean the water tubes
B) The refrigerant connections do not have to be removed
C) an acid should be used
D) both "a" and "b" Answer - D) both "a" and "b"
In an evaporative condenser, where does gas from the compressor condense?
A) Inside a coil & discharges to make up water
B) inside a coil or tubes sprayed with water
C) on plates at the top over which are flows
D) onto a coil caring refrigerant Answer - B) inside a coil or tubes sprayed with
water
In order to make leak free pipe joints you should use what?
A) serrated flanges without a lead gasket
B) threaded streamline fittings and white lead
C) A combination of solder, litharge/glycerin and white lead
D) streamline fittings soldered to copper pipe Answer - D) streamline fittings
soldered to copper pipe
RATED 100% CORRECT!!
Capacitors have the ability to?
A) Store electrical energy that can be used to start motors
B) Vary the resistance in ain a circuit
C) limit the possibility of shock hazard
D) start waters by reducing mechanical resistance Answer - A) Store electrical
energy that can be used to start motors
Convert 115 Celsius to Fahrenheit?
A) 241 F
B) 265 F
C) 239 F
D) 221 F Answer - C) 239 F
F=1.8x(°C)+32
Convert 87°F into the corresponding temperature in centigrade
A) 188 C
B) 99 C
C) 30.5 C
D) 28.5 C Answer - C) 30.5 C
C=(°F-32)/1.8
,How many BTUs must be added to vaporize 1 pound water?
A) 144
B) 1310
C) 970
D) 1 Answer - C) 970
"Class B" fire extinguishers are intended for?
A) electrical equipment
B) combustible metals
C) wood or paper
D) flammable liquids Answer - D) flammable liquids
An office building has three chillers in a basement equipment room. Where
should the emergency break glass be located?
A) at the entrance to the basement mechanical room
B) on one of the chillers
C) on the electrical distribution panel located in the room
D) at the fire warden station Answer - A) at the entrance to the basement
mechanical room
A partially blocked liquid line may cause?
A) High temperatures between blockage and the metering device
B) Frost between blockage and metering device
C) Frost between receivers and blockage
D) High temperatures between compressor and evaporator Answer - B) Frost
between blockage and metering device
, The flashpoint of refrigerant oil should be?
A) lower than the evaporator temperature
B) lower than the compressor discharge temperature
C) higher than the compressor discharge temperature
D) higher than the evaporator temperature Answer - C) higher than the
compressor discharge temperature
Which of the following is true when cleaning a shell and tube condenser?
A) The heads must be removed in order to clean the water tubes
B) The refrigerant connections do not have to be removed
C) an acid should be used
D) both "a" and "b" Answer - D) both "a" and "b"
In an evaporative condenser, where does gas from the compressor condense?
A) Inside a coil & discharges to make up water
B) inside a coil or tubes sprayed with water
C) on plates at the top over which are flows
D) onto a coil caring refrigerant Answer - B) inside a coil or tubes sprayed with
water
In order to make leak free pipe joints you should use what?
A) serrated flanges without a lead gasket
B) threaded streamline fittings and white lead
C) A combination of solder, litharge/glycerin and white lead
D) streamline fittings soldered to copper pipe Answer - D) streamline fittings
soldered to copper pipe
