____ fire extinguishers are used for combustible metals such as zinc and magnesium.
A. Type A
B. Type B
C. Type C
D. Type D
Answer: D
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____ are intended to open the circuit when the current exceeds the full-load current rating of the motor by 115 percent to 125 percent.
A. Fuses B. Overloads C. Circuit breakers D. Trip wires
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?How many times in 1 second will a valve open in an engine running at 6000 rpm?
What will be an ideal response?
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Which category of compression ring is used on most current highway diesel engines?
A. rectangular B. rectangular, taper face C. keystone D. oval
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The best container for most types of amphibians is a wire-mesh cage
Indicate whether the statement is true or false
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