RMO Review Exam UPDATED QUESTIONS
AND CORRECT ANSWERS
(a) Aluminum - CORRECT ANSWER Which metal is least sutiable for use with
methyl choloride?
(d) 62 - CORRECT ANSWER According to ASHRAE which is the most dangerous?
(d) forced draft - CORRECT ANSWER What cooling tower has a fan at its air inlet?
(c) A and B - CORRECT ANSWER Why are low pressure chillers equipped with pruge
units?
(b) stratosphere - CORRECT ANSWER The ozone layer is found in the Earth's
_______?
(d) discharge into a common header - CORRECT ANSWER Pumps piped in paralel
_____?
(d) pounds per square inch above atmospheric pressure, inches of vaccum below -
CORRECT ANSWER Compound gauges register _____?
(d) an overcharge of oil - CORRECT ANSWER When starting a recriprocating
compressor a loud pounding noise indicates ______?
(a) 122 - CORRECT ANSWER Convert 50 C to Fahrenheit?
(b) control the flow of refrigerant into the shell - CORRECT ANSWER Electric float
switches are used on shell and tube coolers to _____?
, (a) A1 - CORRECT ANSWER According to ANSIA/ASHRAE which is the least
flammable and least toxic?
(a) the water supply is below the pump level - CORRECT ANSWER A pump is
reffered to as a "lift pump" when ______?
(c) 8 - CORRECT ANSWER A cooling tower should maintain a ph close to _____?
(d) 200 lbs - CORRECT ANSWER How many pounds of Sodium Dischromate should
be added to 1,000 cubic feet of sodium chloride brine?
(a) 1 - CORRECT ANSWER According to the NYC refrigeration code, which group is
Carbon Dioxide in?
(d) when the compressor cuts off - CORRECT ANSWER In a recriprocating system
when is the oil heater turned on _____?
(c) The pressure range of the cycles - CORRECT ANSWER The primary difference
between a lithium bromide and ammonia absorption cycle is _____?
(a) The same refrigerant that is in the system - CORRECT ANSWER What refrigerant
is most often used in the bulb of a thermostatic expansion valve?
(a) increase as the wet bumb temperature decreases - CORRECT ANSWER The
capacity of a cooling tower will ?
(d) never - CORRECT ANSWER When can a swurriel cage motor be used at variable
speeds?
(b) Less than 10 tons of ice - CORRECT ANSWER A machine rated at 10 tons will
produce _____?
AND CORRECT ANSWERS
(a) Aluminum - CORRECT ANSWER Which metal is least sutiable for use with
methyl choloride?
(d) 62 - CORRECT ANSWER According to ASHRAE which is the most dangerous?
(d) forced draft - CORRECT ANSWER What cooling tower has a fan at its air inlet?
(c) A and B - CORRECT ANSWER Why are low pressure chillers equipped with pruge
units?
(b) stratosphere - CORRECT ANSWER The ozone layer is found in the Earth's
_______?
(d) discharge into a common header - CORRECT ANSWER Pumps piped in paralel
_____?
(d) pounds per square inch above atmospheric pressure, inches of vaccum below -
CORRECT ANSWER Compound gauges register _____?
(d) an overcharge of oil - CORRECT ANSWER When starting a recriprocating
compressor a loud pounding noise indicates ______?
(a) 122 - CORRECT ANSWER Convert 50 C to Fahrenheit?
(b) control the flow of refrigerant into the shell - CORRECT ANSWER Electric float
switches are used on shell and tube coolers to _____?
, (a) A1 - CORRECT ANSWER According to ANSIA/ASHRAE which is the least
flammable and least toxic?
(a) the water supply is below the pump level - CORRECT ANSWER A pump is
reffered to as a "lift pump" when ______?
(c) 8 - CORRECT ANSWER A cooling tower should maintain a ph close to _____?
(d) 200 lbs - CORRECT ANSWER How many pounds of Sodium Dischromate should
be added to 1,000 cubic feet of sodium chloride brine?
(a) 1 - CORRECT ANSWER According to the NYC refrigeration code, which group is
Carbon Dioxide in?
(d) when the compressor cuts off - CORRECT ANSWER In a recriprocating system
when is the oil heater turned on _____?
(c) The pressure range of the cycles - CORRECT ANSWER The primary difference
between a lithium bromide and ammonia absorption cycle is _____?
(a) The same refrigerant that is in the system - CORRECT ANSWER What refrigerant
is most often used in the bulb of a thermostatic expansion valve?
(a) increase as the wet bumb temperature decreases - CORRECT ANSWER The
capacity of a cooling tower will ?
(d) never - CORRECT ANSWER When can a swurriel cage motor be used at variable
speeds?
(b) Less than 10 tons of ice - CORRECT ANSWER A machine rated at 10 tons will
produce _____?
