Filters
Question type
Study Flashcards

Explain what happens to refrigerant that does not exit when the piston reaches top dead-center.

Correct Answer

verifed

verified

The small amount of ...

View Answer

A compressor that has the motor and compressor in one housing that is welded together is called a(n) ____________________ type.

Correct Answer

verifed

verified

Because a scroll compressor's has fewer moving parts, it operates much quieter than other compressor designs and technologies.

A) True
B) False

Correct Answer

verifed

verified

The scroll compressor is one type of reciprocating compressor.

A) True
B) False

Correct Answer

verifed

verified

The shell of a hermetic type reciprocating compressor is generally considered to be on the low pressure side of the system.

A) True
B) False

Correct Answer

verifed

verified

Pistons are connected to the crankshaft using connecting rods and ____________________.

Correct Answer

verifed

verified

The hermetic reciprocating compressor motor is essentially made of the same materials as an open type compressor motor.

A) True
B) False

Correct Answer

verifed

verified

Rotary compressors are used primarily in ____.


A) large industrial refrigeration and air conditioning systems
B) residential and light commercial air-conditioning
C) small commercial refrigeration units
D) high volume residential refrigeration

E) None of the above
F) B) and C)

Correct Answer

verifed

verified

A bolted together motor-compressor assembly is sometimes referred to as a semihermetic type .

A) True
B) False

Correct Answer

verifed

verified

What causes may lead to liquid slugging a compressor with liquid refrigerant ?

Correct Answer

verifed

verified

Metering device overfeeding; low air cir...

View Answer

The type of compressor that is driven by a belt is the ____________________ compressor.

Correct Answer

verifed

verified

open-drive...

View Answer

Liquid entering the compression chamber of a reciprocating compressor can lead to ____.


A) damaged valves
B) damaged piston rings
C) damaged expansion valves
D) Both a and b.

E) All of the above
F) C) and D)

Correct Answer

verifed

verified

Mufflers are used in many fully hermetic compressors to muffle compressor pulsation noise.

A) True
B) False

Correct Answer

verifed

verified

SEER is calculated based on the total amount of cooling (in BTU) the system will provide over the entire season, divided by the total number Watt-Hours it will consume .

A) True
B) False

Correct Answer

verifed

verified

The temperature of the compressed gas leaving the compressor can best be described as ____.


A) cold
B) cool
C) warm
D) very warm

E) C) and D)
F) A) and B)

Correct Answer

verifed

verified

Showing 21 - 35 of 35

Related Exams

Exam 1

Heat and Pressure

45 Questions

Exam 2

Matter and Energy

32 Questions

Exam 3

Refrigeration and Refrigerants

38 Questions

Exam 4

General Safety Practices

31 Questions

Exam 5

Tools and Equipment

30 Questions

Exam 6

Fasteners

32 Questions

Exam 7

Tubing and Piping

45 Questions

Exam 8

Leak Detection, System Evacuation and System Clean-Up

33 Questions

Exam 9

Refrigerant and Oil Chemistry and Managementrecovery, Recycling, Reclaiming, and Retrofitting

39 Questions

Exam 10

System Charging

27 Questions

Exam 11

Calibrating Instruments

34 Questions

Exam 12

Basic Electricity and Magnetism

46 Questions

Exam 13

Introduction to Automatic Controls

30 Questions

Exam 14

Automatic Control Components and Applications

34 Questions

Exam 15

Troubleshooting Basic Controls

33 Questions

Exam 16

Advanced Automatic Controlsdirect Digital Controls Ddc and Pneumatics

35 Questions

Exam 17

Types of Electric Motors

36 Questions

Exam 18

Application of Motors

33 Questions

Exam 19

Motor Controls

31 Questions

Exam 20

Troubleshooting Electric Motors

30 Questions

Exam 21

Evaporators and the Refrigeration System

37 Questions

Exam 22

Condensers

35 Questions

Exam 24

Expansion Devices

29 Questions

Exam 25

Special Refrigeration System Components

35 Questions

Exam 26

Application of Refrigeration Systems

34 Questions

Exam 27

Commercial Ice Machines

35 Questions

Exam 28

Special Refrigeration Applications

27 Questions

Exam 29

Troubleshooting and Typical Operating Conditions for Commercial Refrigeration

34 Questions

Exam 30

Electric Heat

29 Questions

Exam 31

Gas Heat

27 Questions

Exam 32

Oil Heat

35 Questions

Exam 33

Hydronic Heat

35 Questions

Exam 34

Indoor Air Quality

35 Questions

Exam 35

Comfort and Psychrometrics

35 Questions

Exam 36

Refrigeration Applied to Air Conditioning

31 Questions

Exam 37

Air Distribution and Balance

35 Questions

Exam 38

Installation

32 Questions

Exam 39

Residential Energy Auditing

35 Questions

Exam 40

Typical Operating Conditions

25 Questions

Exam 41

Troubleshooting

28 Questions

Exam 42

Heat Gain and Heat Loss in Buildings

35 Questions

Exam 43

Air Source Heat Pumps

35 Questions

Exam 44

Geothermal Heat Pumps

31 Questions

Exam 45

Domestic Refrigerators and Freezers

35 Questions

Exam 46

Room Air Conditioners

34 Questions

Exam 47

High-Pressure, Low-Pressure, and Absorption Chilled-Water Systems

35 Questions

Exam 48

Cooling Towers and Pumps

30 Questions

Exam 49

Operation, Maintenance, and Troubleshooting of Chilled-Water Air Conditioning Systems

28 Questions

Exam 50

Commercial Rooftop, Packaged, Variable Refrigerant Flow, and Variable Air Volume Systems

35 Questions

Show Answer