Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 8RQ
If a conductor was wrapped around the jaws of a clamp-on ammeter four times, the proper reading would be __________ if the clamp-on ammeter was reading 16 amperes.
- a. 16 amperes
- b. 8 amperes
- c. 4 amperes
- d. 2 amperes
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An AISI 1018 steel ball with 1.100-in diameter is used as a roller between a flat plate
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1.0
0.8
Ratio of stress to Pmax
0.4
90
0.6
στ
Tmax
0.2
0.5a
a
1.5a
2a
2.5a
За
Distance from contact surface
The maximum amount of weight that can be stacked on the aluminum plate is
lbf.
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1.0
0.8
Ratio of stress to Pma
9 0.6
στ
24
0.4
Tmax
0.2
0
0.5a
a
1.5a
Z
2a
2.5a
За
Distance from contact surface
The maximum shear stress is determined to be
MPa.
The depth in the aluminum ball at which the maximum shear stress will occur is
determined to be [
mm.
Show all work please
Chapter 4 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 4 - What are the three most common electric meters...Ch. 4 - Prob. 2RQCh. 4 - What do most analog meters use to facilitate the...Ch. 4 - How does an ammeter work?Ch. 4 - What are the two types of ammeters? Which type is...Ch. 4 - Prob. 6RQCh. 4 - How can a very small ampere draw be measured with...Ch. 4 - If a conductor was wrapped around the jaws of a...Ch. 4 - Explain the operation of an analog voltmeter.Ch. 4 - Air-conditioning or refrigeration equipment can...
Ch. 4 - Prob. 11RQCh. 4 - What precaution should be taken when using an...Ch. 4 - Prob. 13RQCh. 4 - What is a short circuit?Ch. 4 - Prob. 15RQCh. 4 - What factors should be considered when purchasing...Ch. 4 - Match the following terms.Ch. 4 - Prob. 18RQCh. 4 - Prob. 19RQCh. 4 - An in-line ammeter must be connected to a circuit...Ch. 4 - What is the difference between an analog meter...Ch. 4 - Give three advantages of a digital electric meter.Ch. 4 - What basic concept is used in a digital meter to...Ch. 4 - What is the basic accuracy of most analog and...Ch. 4 - How many digits will the 312- and 412-digit...Ch. 4 - Prob. 26RQCh. 4 - The ohmmeter differs from other types of meters in...Ch. 4 - Compare the digital and analog types of electric...
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