ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 6.1, Problem 15RQ
A noncontact voltage detector is to be used to check for live voltage at an electric outlet. What safety-related function should be carried out first?
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Chapter 6 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
Ch. 6.1 - Explain how measurements are made using an analog...Ch. 6.1 - Prob. 2RQCh. 6.1 - Name the three basic metering functions that can...Ch. 6.1 - What is the purpose of the multimeter function...Ch. 6.1 - What is the purpose of the multimeter range...Ch. 6.1 - An analog voltmeter uses a single scale calibrated...Ch. 6.1 - Unlike analog multimeters, digital multimeters...Ch. 6.1 - Prob. 8RQCh. 6.1 - How are voltmeters connected relative to the...Ch. 6.1 - Digital voltmeters have little or no loading...
Ch. 6.1 - A digital multimeter is used to measure a DC...Ch. 6.1 - Define voltage drop.Ch. 6.1 - How are ground-referenced voltage measurements...Ch. 6.1 - State one advantage and one limitation of a...Ch. 6.1 - A noncontact voltage detector is to be used to...Ch. 6.1 - When measuring voltages and currents of unknown...Ch. 6.1 - How must ammeters be connected relative to the...Ch. 6.1 - Ammeters are required to have very low resistance...Ch. 6.1 - What is the advantage of taking a current reading...Ch. 6.1 - Explain how a clamp-on ammeter measures current...Ch. 6.1 - While attempting a voltage measurement across a...Ch. 6.1 - A clamp-on ammeter is to be used to determine the...Ch. 6.2 - What four basic components make up the internal...Ch. 6.2 - How is the pointer of an analog-type ohmmeter set...Ch. 6.2 - Series analog ohmmeters have nonlinear scales....Ch. 6.2 - What does a resistance reading of OL on a digital...Ch. 6.2 - A multimeter set to measure resistance is...Ch. 6.2 - When doing in-circuit component resistance...Ch. 6.2 - Explain the purpose of the multimeter continuity...Ch. 6.2 - An ohmmeter is connected across the two leads of a...Ch. 6.2 - Convert each of the following digital multimeter...Ch. 6.2 - Give an example of what might cause the occurrence...Ch. 6.2 - What energy-level category of multimeter is...Ch. 6.2 - A simple resistance measurement is made to test...Ch. 6.2 - What type of hand protection may be required when...Ch. 6.2 - Compare the input impedance of analog and digital...Ch. 6.2 - Define meter accuracy.Ch. 6.2 - Define meter resolution.Ch. 6.2 - What protection is afforded by the fuse connected...Ch. 6.2 - Prob. 18RQCh. 6.2 - The diode test function of a DMM is to be used to...Ch. 6.2 - Under what condition will true RMS and averaging...
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- What is a live electrical circuit?arrow_forwardFluke DMM 1. Which jacks should be used and what setting should be chosen on the selector switch to measure resistance with the Fluke DMM? a. Jacks to be used: b. Selector switch position: (describe or draw the symbol for the setting) 2. The Fluke DMM is an autoranging meter. What does this mean? 3. For each display sample shown below, indicate the resistance value being measured by the Fluke DMM. 89.63a a. b. 20.36 ka 8.306 Ma C. 2036a d. e. 2.036 ka. f. 0.936 Ma 0.068 k g. 0710 assign_ELTE108_Homework_07_2011-11-04ACC.docx Page 4 of 4arrow_forwardWhat is the purpose of a voltage regulator in an electrical circuit?arrow_forward
- An electric fuse consist of a small strip of wire with a low melting temperature. The current in the protected circuit flows this strip. Which will have a greater resistance, 10A fuse or a 20A fuse? Explain.arrow_forward1.a. Which of the following best describes the arc tube for a high-pressure sodium lamp?A. Long and slenderB. Short and wideC. Short and slenderD. Long and wide1.b. The most common electrical contact for a standard tubular T12 fluorescent lamp is called aA. medium skirted base.B. mogul base.C. medium BiPin base.D. 4-pin base.1.c. The two main categories of discharge lamps areA. mercury and high-intensity discharge.B. fluorescent and high-intensity discharge.C. mercury and metal halide.D. fluorescent and incandescent.arrow_forwardSet VA to 20 volts. Insert a jumper between points A and B. 1.Charge time was approximately how many seconds? 2.One RC time is approximately how many seconds? 3.The Re of the meter and the 1-m ohm resistor is approximately how many ohms?arrow_forward
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