Single contact (1156 ) and double contact (1157 ) bulbs both use ________
A) One positioning lug B) Two positioning lugs
C) A wedge shape for plugging into the connector D) None of these
B
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Answer the following statement(s) true (T) or false (F)
1. Plugging controls provide for the rapid stop and quick reversal of motor rotation. 2. Standard reversing controllers cannot be plugged manually. 3. The torque that operates the plugging switch contacts will vary according to the speed of the motor. 4. You can predetermine the direction of the rotation of motors when the phases are connected externally in proper sequence. 5. A time-delay relay may be used in a motor plugging circuit.
Fuses cannot be used to protect wires and non-inductive loads, but they provide adequate protection for inductive loads.
Answer the following statement true (T) or false (F)
Butterfly shutters and sliding sleeves are examples of _________________________ and are used on atmospheric type gas burners.
Fill in the blank(s) with the appropriate word(s).
Which of these is the best tool to measure cylinder bore taper and out of round?
A) Dial bore gauge B) Micrometer C) Telescoping gauge D) None of these