Elevator control - Sequence of operation

Q.  Which is the correct sequence of operational steps necessary for proper operation of an elevator (lift) control mechanism?

1. Up switch
2. Stop switch
3. Down switch
4. Start switch
- Published on 09 Oct 15

a. 1-2-3-4
b. 2-1-4-3
c. 4-2-1-3
d. 3-1-2-4

ANSWER: 4-2-1-3

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