Unit 25 review

Unit 25 review

University

15 Qs

quiz-placeholder

Similar activities

Refrigeration Cycle

Refrigeration Cycle

University

15 Qs

Enthalpy 1

Enthalpy 1

University

18 Qs

Heat Pump

Heat Pump

University

15 Qs

Scitech: modern technology 1,2,3 สรุป by korn เภสัช

Scitech: modern technology 1,2,3 สรุป by korn เภสัช

10th Grade - University

15 Qs

Refrigeration quiz True/false

Refrigeration quiz True/false

University

13 Qs

Assessment for HVAC Module 1

Assessment for HVAC Module 1

University

15 Qs

Unit 24 Refrigeration System Expansion Devices Quiz

Unit 24 Refrigeration System Expansion Devices Quiz

University

14 Qs

EPA 608 Type 1

EPA 608 Type 1

12th Grade - University

15 Qs

Unit 25 review

Unit 25 review

Assessment

Quiz

Science

University

Medium

NGSS
HS-PS3-4, HS-PS3-3, MS-PS3-3

+2

Standards-aligned

Created by

Robert Hemmila

Used 2+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two-temperature operation of a refrigeration system is necessary when ____.

the compressor must be protected from overloading

more than one evaporator is used with a compressor

the coil in the evaporator is excessively long

a multiple-circuit distributor is used

Tags

NGSS.HS-PS3-4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Technician "A" says that a multi-evaporator system equipped with three evaporators (one high temperature, one medium temperature, and one low temperature) will use one evaporator pressure regulator and two flow check valves. Technician "B" says that the crankcase pressure regulator is used to keep the low-temperature compressor from overloading on a hot pulldown. Which of the following statements is correct?

Technician "A" is correct. Technician "B" is correct.

Technician "A" is correct. Technician "B" is incorrect.

Technician "A" is incorrect. Technician "B" is correct.

Technician "A" is incorrect. Technician "B" is incorrect.

Tags

NGSS.HS-PS3-4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To protect the compressor during periods of hot pull down, a(n) ____ valve is used.

EPR valve

CPR valve

CVPC valve

PCV valve

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The refrigeration compressor motor can be operated at about ____% over its rated capacity without harm during the pulldown.

10

20

2

15

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refrigeration systems are designed to operate year round. For this reason they are equipped with ____.

Low ambient control

seasonal offset

Fall evaporator control

Summer evaporator control

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a type of low-ambient temperature head pressure control?

CPR.

EPR.

Fan cycling.

Tags

NGSS.HS-PS3-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Frequently on smaller condensing units, one fan will run continuously and the other fan will be cycled on and off with a(n) ____.

switch

Low ambient control

thermostst

archicetect control

Tags

NGSS.MS-PS3-3

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?