Which of the following statements is a good safety practice for masons?
A. Never use gasoline-operated mortar mixers.
B. Wear rubber gloves when operating a wet masonry saw.
C. Avoid angled shields when using a saw.
D. Use lightweight household extension cords with grinders.
Answer: B
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Diesel fuel should be rated at what cetane rating?
A) 87 B) 25-30 C) 45-50 D) 91+
When the field device representing an examine-on instruction supplies a voltage to a PLC input terminal, the corresponding addressed memory bit is a ____________________ (0, 1).
Fill in the blank(s) with the appropriate word(s).
____ detectors use beams of light to respond to smoke particles visible to the naked eye during development of a fire.
A. Photoelectric B. Heat C. Fire flame D. Smoke
When the sampling frequency fs = 20 kHz, the time required for a 10-bit staircase quantizer to make a comparison is T?=_____(x.xxx) ?s.
Fill in the blank(s) with the appropriate word(s).