Electricity for Refrigeration, Heating, and Air Conditioning
9th Edition
ISBN: 9781285179988
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 4, Problem 4RQ
How does an ammeter work?
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Chapter 4 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning
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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- What is the smallest graduation on a metric micrometer with a vernier scale?arrow_forwardWhat is the smallest graduation on an inch micrometer with a vernier scale?arrow_forwardFor a measurement that must be made within one ten-thousandth of an inch. Technician A uses a machinists rule. For the same accuracy. Technician B uses a standard micrometer. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- What component does a tubular inside micrometer include that allows it to measure a wide range of inside dimensions? -Adjustable anvil -Sleeve -Head -Extensionsarrow_forwardDescribe how an amperage reading would be taken using a clamp-on or clamp-around ammeter.arrow_forwardа. Figure 1 shows an instrument to measure revolution of a cam. Draw a block diagram of the instrument. ii. i. Describe the measuring mechanism in the instrument. ii. Categorized the instrument weather it is 1. Active or passive instrument. 2. Analogue or digital instrument. Switch Counter Camarrow_forward
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