Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Question
Chapter 15, Problem 1ASRQ
To determine
The correct analysis while discussing resistance.
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Higher pairs are those which have
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Surface contact between elements
Point or line contact between elements
None of the mentioned
No contact between elements
True or False
1. It is acceptable to use a hoist to lift something that weighs more than the rating on the hoist when the load is lifted carefully.
2. Typically, combustible material accidents occur at higher temperatures while flammable material accidents occur at room temperature.
3. Water reactive chemicals include calcium carbide, cyclooctene, metal hydrides, and metals like sodium and potassium.
4. When driving material lifting equipment, workers should maintain at least a 5-foot clearance from overhead power lines.
5. Workers should use at least 2 straps placed equally from the center when lifting a long I-beam.
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Multiple Choice
1. Which of the following chemicals is not considered a liver toxin?
A. Glacial acetic acid
B. Carbon Tetrachloride
C. Ethanol
D. Trichloroethylene
2. Which of the following is a safety practice intended to protect workers from a lightning strike?
A. Use a metal…
Which of the following is the purpose of fail-safe circuits?
O Fail-safe circuits are designed to protect electric motors against voltage surge
O All of these are true
O Fail-safe circuits are designed to provide overload protection for system components
O Fail-safe circuits are designed to maintain constant current in electric motor coils
Chapter 15 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 15 - What is represented by the E, I, and R in the...Ch. 15 - Prob. 2RQCh. 15 - What are the two types of wires and which is the...Ch. 15 - Define voltage drop.Ch. 15 - Define circuit protection.Ch. 15 - What is a normally dosed switch?Ch. 15 - Prob. 7RQCh. 15 - What is the difference between voltage and...Ch. 15 - What is an SPST switch?Ch. 15 - Which type of resistor is commonly used in...
Ch. 15 - Prob. 11RQCh. 15 - Solve the parallel circuit for total circuit...Ch. 15 - Prob. 13RQCh. 15 - Prob. 14RQCh. 15 - Prob. 15RQCh. 15 - Prob. 1ASRQCh. 15 - Prob. 2ASRQCh. 15 - WHiile discussing the circuit shown in Figure...Ch. 15 - While discussing electrical grounds: Technician A...Ch. 15 - Prob. 5ASRQCh. 15 - Prob. 6ASRQCh. 15 - While discussing copper wire: Technician A says...Ch. 15 - While discussing current flow: Technician A says...Ch. 15 - While discussing voltage Technician A says that...Ch. 15 - While discussing the AWG system: Technician A says...
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- While discussing copper wire: Technician A says that if the length of wire is doubled, the resistance between the wire ends is doubled. Technician B says that if the diameter of a wire is doubled, the resistance between the wire ends is doubled. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile discussing current flow: Technician A says that current results from electrons being attracted to protons. Technician B says that for practical purposes, it is best to remember that current flows from a point of higher potential to a point of lower potential. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile measuring the resistance of a wire with an ohmmeter: Technician A says that if low resistance is shown on the meter, the wire is shorted. Technician B says that if no resistance is measured, the wire is shorted. Who is correct? Technician A Technician B Both A and B d. Neither A nor Barrow_forward
- While discussing voltage Technician A says that voltage is the force developed by the attraction of the electrons to protons. Technician B says that the force developed by the attraction of electrons to protons is called electromotive force and it is measured in volts. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTrue or False? A zero reading on an ohmmeter means the circuit or component is open.arrow_forwardTrue or False? A lab scope is a visual voltmeter that shows voltage over a period of time.arrow_forward
- True or False? The strength of the magnetic field in an electromagnet increases with an increase in the number of turns of wire and the current flowing through them.arrow_forwardmechanical resistancearrow_forwardWhile discussing electrical grounds: Technician A says that a component may be grounded through its mounting to a major metal part. Technician B says that some components must be grounded by connecting its positive terminal to a metal section of the frame. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- How much current is considered a lethal amount.arrow_forwardIron heats up more rapidly than does aluminum because it has a greater specific heat. True Falsearrow_forwardThe circuit breaker at a power seat motor continuously trips: Technician A says that this could be caused by a seat track problem that is causing mechanical resistance. Technician B says that this could be caused by corrosion at the motor, which is causing electrical re-sistance. Who is correct?arrow_forward
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