CIRO LATEST QUESTIONS AND ACCURATE ANSWERS FOR
GUARANTEED RESULTS
What is the lowest PPM at which ammonia is often detectable?
A. 4 PPM B. 5 PPM
C. 2 PPM D. 8 PPM
Which gas is best for inspecting leaks in an ammonia system's modified pipe
section?
A. Dioxide sulfur
B. R-22 C. Nitrogen that is dry
D. R-414b
For a shell and tube condenser, which of these is true?
A. The tubes' water evaporates
B. The tubes carry refrigerant.
C. Water passes through the shell D. The tubes are surrounded with refrigerant
Which of these influences the temperature of the wet bulb?
A. Ambient air temperature and moisture content B. Ambient air temperature
and discharge temperature
C. Seasonal humidity D. Suction pressure and discharge temperature
When all evaporators are running normally and not in defrost, under what
circumstances will the indicated liquid level run higher in the high pressure
receiver in a facility served only by flooded units?
A. When the condenser's refrigerant hangs up B. When the plant is operating at
maximum load conditions
C. When the facility is operating under minimal load circumstances
D. The high pressure receiver's level remains constant.
Which of these calls for pressure vessels to have a dual relief valve assembly?
A. One cubic foot or more of volume B. It is advised but never necessary
, C. Ten cubic feet or more in volume D. One hundred cubic feet or more in
volume
Which of these is used as a measurement to find out if non-condensables are
present?
A. Temperature and pressure at the compressor inlet
B. Temperature and pressure of compressor discharge
C. Inlet header pressure and condenser water temperature
D. Temperature and pressure at the condenser refrigerant outflow
How can a single speed screw compressor accomplish capacity control?
A. By shifting the slide piston or valve B. By adjusting the bypass valve's
throttle
C. By shifting the guide vanes
D. Capacity control is absent from screw compressors.
The condenser is running at 95 degrees Fahrenheit while the 100-ton evaporator
is running at -40 degrees. Which of these configurations would use the least
amount of energy when functioning if only energy usage was taken into
account?
A. Centrifugal single stage
B. Piston machines with a single stage
C. Screw machines with a single stage
D. A two-phase system
The process an operator uses to empty oil
A. Because oil draining is automatic, it is not required. B. Because oil remains
miscible in anhydrous ammonia, it is not required.
C. With today's lubricants, it's actually not essential D. Perhaps the riskiest thing
an operator does
Which fan coil unit would have the fewest fins per inch?
An A. Refrigerant-dependent B. +40°F air conditioning coil C. +20°F cold
storage coil D. -40°F blast freezer coil
When handling refrigerants, which type of protective eyewear is advised?
A full face respirator and safety glasses
GUARANTEED RESULTS
What is the lowest PPM at which ammonia is often detectable?
A. 4 PPM B. 5 PPM
C. 2 PPM D. 8 PPM
Which gas is best for inspecting leaks in an ammonia system's modified pipe
section?
A. Dioxide sulfur
B. R-22 C. Nitrogen that is dry
D. R-414b
For a shell and tube condenser, which of these is true?
A. The tubes' water evaporates
B. The tubes carry refrigerant.
C. Water passes through the shell D. The tubes are surrounded with refrigerant
Which of these influences the temperature of the wet bulb?
A. Ambient air temperature and moisture content B. Ambient air temperature
and discharge temperature
C. Seasonal humidity D. Suction pressure and discharge temperature
When all evaporators are running normally and not in defrost, under what
circumstances will the indicated liquid level run higher in the high pressure
receiver in a facility served only by flooded units?
A. When the condenser's refrigerant hangs up B. When the plant is operating at
maximum load conditions
C. When the facility is operating under minimal load circumstances
D. The high pressure receiver's level remains constant.
Which of these calls for pressure vessels to have a dual relief valve assembly?
A. One cubic foot or more of volume B. It is advised but never necessary
, C. Ten cubic feet or more in volume D. One hundred cubic feet or more in
volume
Which of these is used as a measurement to find out if non-condensables are
present?
A. Temperature and pressure at the compressor inlet
B. Temperature and pressure of compressor discharge
C. Inlet header pressure and condenser water temperature
D. Temperature and pressure at the condenser refrigerant outflow
How can a single speed screw compressor accomplish capacity control?
A. By shifting the slide piston or valve B. By adjusting the bypass valve's
throttle
C. By shifting the guide vanes
D. Capacity control is absent from screw compressors.
The condenser is running at 95 degrees Fahrenheit while the 100-ton evaporator
is running at -40 degrees. Which of these configurations would use the least
amount of energy when functioning if only energy usage was taken into
account?
A. Centrifugal single stage
B. Piston machines with a single stage
C. Screw machines with a single stage
D. A two-phase system
The process an operator uses to empty oil
A. Because oil draining is automatic, it is not required. B. Because oil remains
miscible in anhydrous ammonia, it is not required.
C. With today's lubricants, it's actually not essential D. Perhaps the riskiest thing
an operator does
Which fan coil unit would have the fewest fins per inch?
An A. Refrigerant-dependent B. +40°F air conditioning coil C. +20°F cold
storage coil D. -40°F blast freezer coil
When handling refrigerants, which type of protective eyewear is advised?
A full face respirator and safety glasses
