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Makakakakajaja

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Carlos Cruz

United States

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Quiz 1


Quiz 1Version en ligne Makakakakajaja par Carlos Cruz 1 use reachin refrigeration units for merchandising their products Choose one or more answers a retail stores b Ok 2 The component in the refrigeration system used to catch and prevent liquid from entering the compressor is called the: a The accumulator b Ok 3 When commercial defrost cycle is terminated, the evaporator fans will: a Delay coming on b Ok 4 The crankcase heater is used to prevent: a refrigerant migration to the compressor crankcase during the off cycle. b Ok 5 The pressure at which the refrigerant changes state, from VAPOR to a LIQUID is the: a Condensing pressure b Ok 6 If a pressure control has adjusted to cut in at 40 psig, in order to have a 15 psig cut out, the differential setting of the control must be: a 25 b Ok 7 If the suction pressure of a system is 60 psig and the oil pump outlet is 85 psig, what is the net oil pressure? a 25 psig b Ok 8 Parallel compressors often referred to as a rack system may use; a both common suction header and common discharge header. b Ok 9 What can be considered a secondary fluid in a refrigeration system? a both a and b b Ok 10 A hot gas defrost cycle can be initiated by a: a timer b Ok 11 An accumulator at the outlet of the evaporator is there to ____. a provide for the peak amount of active liquid refrigerant in the evaporator b Ok 12 Large or small compressors on parallel compressor racks, which are usually dedicated to the coldest cases, are called; a Both A and C b Ok 13 The " Low Ambient Control" is used to control; a Head pressure b In 14 Why do suction line filter driers have two service ports? a To enable checking pressure drop across the drier b H 15 An oil separator must be kept warm in order to: a prevent sluggish return of the oil to the crankcase. b H 16 The function of the evaporator pressure regulator is to: a prevent a minimum pressure in the evaporator. b In 17 A pressure gauge placed anywhere, from the METERING DEVICE to the COMPRESSOR will read: a The low side or evaporating pressure b Ok 18 An evaporator pressure regulator valve (EPR valve) is a mechanical control that; a limits pressure set point in the evaporator b No 19 " Pump Down" means to capture system refrigerant in the : a condenser and/or liquid receiver b No 20 What is the normal operating position for a compressor service valve? a Back seated b L 21 Capacity control of a large compressor can be performed with; a unloaders b N 22 When working on a refrigeration system is complete, the compressor service valves should be in this position: a Back seated b L 23 A ____________________ is placed in the suction line to protect the compressor. a filter drier b No 24 Multiple compressors provide: a capacity control b L 25 The _____________ control maintains the correct operating head pressure on air cooled equipment in both mild and cold weather by cycling the condenser fan. a low ambient b Ln 26 The refrigerant charge in a TXV remote bulb or power element must be: a Identical to the refrigerant in the system. b I 27 The high and low pressure in a refrigeration system are separated by the : a Metering device and compressor b Hi 28 A liquid receiver is used to: a store liquid refrigerant b Nin 29 The external equalizing tube on the TXV is used on: a Long evaporators having a significant pressure drop b No

Quiz 1

Test

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Quiz 1Version en ligne

par Carlos Cruz

use reachin refrigeration units for merchandising their products

The component in the refrigeration system used to catch and prevent liquid from entering the compressor is called the:

When commercial defrost cycle is terminated, the evaporator fans will:

The crankcase heater is used to prevent:

The pressure at which the refrigerant changes state, from VAPOR to a LIQUID is the:

If a pressure control has adjusted to cut in at 40 psig, in order to have a 15 psig cut out, the differential setting of the control must be:

If the suction pressure of a system is 60 psig and the oil pump outlet is 85 psig, what is the net oil pressure?

Parallel compressors often referred to as a rack system may use;

What can be considered a secondary fluid in a refrigeration system?

A hot gas defrost cycle can be initiated by a:

An accumulator at the outlet of the evaporator is there to ____.

Large or small compressors on parallel compressor racks, which are usually dedicated to the coldest cases, are called;

The " Low Ambient Control" is used to control;

Why do suction line filter driers have two service ports?

An oil separator must be kept warm in order to:

The function of the evaporator pressure regulator is to:

A pressure gauge placed anywhere, from the METERING DEVICE to the COMPRESSOR will read:

An evaporator pressure regulator valve (EPR valve) is a mechanical control that;

" Pump Down" means to capture system refrigerant in the :

What is the normal operating position for a compressor service valve?

Capacity control of a large compressor can be performed with;

When working on a refrigeration system is complete, the compressor service valves should be in this position:

A ____________________ is placed in the suction line to protect the compressor.

Multiple compressors provide:

The _____________ control maintains the correct operating head pressure on air cooled equipment in both mild and cold weather by cycling the condenser fan.

The refrigerant charge in a TXV remote bulb or power element must be:

The high and low pressure in a refrigeration system are separated by the :

A liquid receiver is used to:

The external equalizing tube on the TXV is used on: