Unit 29 review
Authored by Robert Hemmila
Science
University
NGSS covered
Used 3+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The refrigerated cabinet temperature of a high-temperature refrigeration unit ranges from ____.
25°F to 45°F
45°F to 60°F
60°F to 75°F
75°F to 95°F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a high-temperature refrigeration unit, the boiling point of the refrigerant in the coil is normally ____ lower than the cabinet temperature.
5°F to 15°F
10°F to 20°F
25°F to 35°F
35°F to 46°F
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Medium-temperature refrigerated cabinet temperatures range from ____.
5°F to 20°F
20°F to 35°F
30°F to 45°F
35°F to 50°F
Tags
NGSS.HS-PS3-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process of ice making usually occurs in which temperature range?
-10°F to 0°F
0°F to 5°F
5°F to 20°F
20°F to 30°F
Tags
NGSS.MS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Condensing units located outside that are required to operate year-round must have ____.
EPR valves
head pressure control
all weather protection
large fan motors
Tags
NGSS.MS-ETS1-1
NGSS.MS-ETS1-2
NGSS.MS-ETS1-4
NGSS.MS-PS3-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
With the entering air to the condenser above 70°F, the temperature difference between the outdoor air and the condensing temperature on standard units will be ____.
10°F to 15°F
15°F to 20°F
20°F to 25°F
25°F to 30°F
Tags
NGSS.HS-PS3-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a wastewater system, the water entering the condenser is 85°F and the water leaving the condenser is 105°F. Which of the following statements is a logical explanation for the above conditions?
reduced water flow through the condenser
scale buildup in the water circuit
excess water flow through the condenser
both a and b
Tags
NGSS.HS-PS3-4
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