Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 6, Problem 9SQ
Select the best answer for each of the following.
Control station enclosures are
- a. general purpose.
- b. explosion proof.
- c. watertight.
- d. all of these.
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Students have asked these similar questions
Lockout is required:
During servicing and maintenance where unexpected ener-
gization or start-up of equipment could harm employees.
During repair and replacement work, and during renovation
work.
a.
b.
C.
During modifications or other adjustments to powered
equipment.
d.
All of the above.
Lockout may involve:
Opening a disconnect switch.
b.
a.
Closing a valve.
Placing a block in the equipment.
d. All of the above.
C.
Lockout is the process ci
Shutting off a machine at the end of a shift.
Warning equipment operators about the risks involved in
bypassing a machine guard.
Preventing the flow of energy from a power source to a
piece of equipment, and keeping it from operating.
a.
b.
C.
d.
Preventing mechanics from starting repairs without the
machine operators' knowledge.
Tagout:
Serves as a warning.
b. Physically restrains a person from operating a power source.
Must be applied using specialized tagout tools.
a.
C.
d.
Must be worn like a badge by the employee who is doing
the repairs.…
Raceway fill calculations are a prerequisite in ____ needed for particular circuits.
Select one:
A. MATERIAL REQUIREMENTS
B. SCHEMATIC REQUIREMENTS
C. DETERMINING THE SIZE OF RACEWAY
D. CIRCUIT LOADS
Answer without explanation
Chapter 6 Solutions
Electric Motor Control
Ch. 6 - What is meant by normally open contacts and...Ch. 6 - Why is it that normally open and normally closed...Ch. 6 - How are colored pilot lights indicated in wiring...Ch. 6 - Select the best answer for each of the following....Ch. 6 - Select the best answer for each of the following....Ch. 6 - Select the best answer for each of the following....Ch. 6 - Select the best answer for each of the following....Ch. 6 - Select the best answer for each of the following....Ch. 6 - Select the best answer for each of the following....Ch. 6 - Select the best answer for each of the following....
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