What are the two most common types of vacuum pumps?
What will be an ideal response?
Rolling piston and rotary vane
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Which of the following is NOT a characteristic of a safeguard?
A) Create no new hazards B) Initiate semiautomatic ejection C) Prevent contact D) Allow safe maintenance
The signal given by extending both arms and moving them rapidly back and forth horizontally is _____
a. lower the boom b. swing the boom sideways c. raise the load d. emergency stop
Nondestructive examination (NDE) methods are any tests that are used to test equipment and components
_____. a. using chemicals b. without damaging them c. while causing only minor damage d. without touching them
All of the following statements are true concerning high-voltage system safety, EXCEPT:
A. Test lineman gloves for damage and leaks prior to use. B. Disconnect the motor generators prior to turning the ignition off. C. Do not attempt to test or service the system for 5 minutes after the high-voltage service plug is removed. D. Turn the power switch to the off position prior to performing a resistance check.