Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
4th Edition
ISBN: 9780357097755
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 21, Problem 1RQ
Refer to Figure 21–1 to answer the following questions.
When switch HOA SW 122 is in the off position, which contacts have connection between them?
Expert Solution & Answer

To determine
The contacts that have connection between them when switch HOA SW 122 is in OFF position.
Explanation of Solution
Refer the text book Figure 21-1.
Refer the table given in Figure 21 – 1 for the HOA SW 122 switch. The ‘X’ in the table represent a connection and the ‘O’ represent no connection between the contacts.
HOA SW 122 | |||
CONTACT | HAND | OFF | AUTO |
1 – 2 | O | X | X |
3 – 4 | X | O | O |
5 – 6 | X | X | O |
7 – 8 | O | O | X |
From the table, the contacts that have connection when the HOA SW 122 switch is in OFF position are 1 – 2 and 5 – 6.
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Chapter 21 Solutions
Bundle: Understanding Motor Controls, 4th + Mindtap Electrical, 2 Terms (12 Months) Printed Access Card
Ch. 21 - Refer to Figure 21–1 to answer the following...Ch. 21 - Refer to Figure 211 to answer the following...Ch. 21 - Refer to Figure 211 to answer the following...Ch. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - Prob. 7RQCh. 21 - Refer to Figure 21–1 to answer the following...Ch. 21 - Refer to Figure 21–1 to answer the following...Ch. 21 - Prob. 10RQ
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