A refrigerant machine operator is an important person for the transportation of items that need a specified degree of temperature. Are you one of them or just interested? If so, take up the test and all the best.
MANUAL ONLY
AUTOMATIC ONLY
VALVES NOT NEEDED
MANUAL AND AUTOMATIC
30
70
80
90
CAN'T FLARE THAT LARGE
CAN'T TIGHTEN TO GET A GOOD SEAL
AGAINST THE LAW
EASIER TO SWEAT
AT INLET OF EACH COMPRESSOR
AT INLET OF LIQUID RECEIVER
BEFORE AND AFTER SIGHT GLASS
NOT REQUIRED
TOTAL AMOUNT OF REFRIGERANTS IN UNITS
AMOUNT OF THE MOST FLAMMABLE REFRIGERANT
AMOUNT OF REFRIGERANT IN LARGEST MACHINE
TOTAL AMOUNT OF REFRIGERANT IN UNITS AND STORED IN MACHINE ROOM
5
10
20
50
GATE VALVE
BUTTERFLY VALVE OR PLUG VALVE
TWO WAY VALVE
THREE WAY VALVE
MAINTAIN A CONDENSER PRESSURE WITHIN PRESET LIMITS
MAINTAIN A CONSTANT WATER PRESSURE
MAINTAIN A CONSTANT WATER TEMPERATURE
MAINTAIN A CONSTANT CONDENSER PRESSURE
SIGHTGLASS
THERMOSTAT
LOW PRESSURE CUT OUT, PRESSURE SWITCH
REFRIGERANT CHARGE
VERY HIGH TEMPERATURE GAS MIXED WITH LIQUID
DRY VAPOR
DRY VAPOR AT ITS BOILING POINT
DRY VAPOR ABOVE ITS BOILING POINT
OPEN A PLUNGER AND ALLOW REFRIGERANT IN
OPEN SPRING VALVE AND ALLOW REFRIGERANT IN
MANUALLY OPEN AND ALLOW REFRIGERANT IN
MANUALLY CLOSE AND PREVENT REFRIGERANT IN
SATURATED VAPOR
SUPERHEATED VAPOR
LOW TEMPERATURE LIQUID
HOT VAPOR
METAL/CARBON
PLASTIC
RUBBER
SILICON
SUCTION ON TOP, DISCHARGE ON BOTTOM
SUCTION ON BOTTOM, DISCHARGE ON TOP
SUCTION AND DISCHARGE ON TOP
SUCTION AND DISCHARGE ON BOTTOM
WATTS
VOLTS
HORSE POWER
AMPS
MORE CONDUCTIVE
COST LESS
NO CORROSION
HIGHER FREEZING POINT
REMOVES PARTICLES
REMOVES MOISTURE
REMOVES ACID
ALL OF THE ABOVE
CYLINDER UNLOADERS
HOT GAS BYPASS
MOTOR SPEED VARIATIONS
ALL OF THE ABOVE
PRESSURE RELIEF VALVE INSIDE THE COMPRESSOR
PRESSURE RELIEF VALVE AT TOP OF THE HEAD
VALVE PLATE BEING HELD DOWN BY A SPRING
HIGH SIDE PRESSURE IN SYSTEM BELOW DESIGN PRESSURE
SUPERHEAT
HEAT OF FUSION
HEAT OF EVAPORATION
SUBCOOLING
SPLIT THE COOLING LOAD
TO ACCOMMODATE HIGH HEAD PRESSURES
TO INCREASE THE COMPRESSION RATIO
TO NEGATE THE EFFECT OF HIGH COMPRESSION RATIO
DOESN'T FLOW
FLOWS EASILY, SMOOTHLY
FLOW IS SLOW
RESTRICTED FLOW
OPEN SUCTION SIDE VALVE AND PUT DISCHARGE IN THE THROTTLE POSITION
OPEN SUCTION, CLOSE DISCHARGE
CLOSE SUCTION, OPEN DISCHARGE
OPEN SUCTION AND SLOWLY FULLY OPEN DISCHARGE
WORKS WELL ON VARIABLE LOADS
ALLOWS REFRIGERANT ON RISE IN PRESSURE
NEEDS TEMPERATURE CONTROL TO PROTECT EVAPORATOR FROM FREEZING UP FROM COLD WATER
ON WATER TYPE EVAPORATOR, FREEZING WILL NOT OCCUR
40
30
20
10
Wait!
Here's an interesting quiz for you.