There are ____ seconds in a minute.
A. 60
B. 120
C. 360
D. 600
Answer: A
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Which of the following is an environmental hazard associated with reactors?
A. Spill of liquid catalyst B. Release of hazardous/toxic vapors C. Particulate matter released into air D. All of the above
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The thickness of sheet metal is referred to as:
a. foil b. gauge c. plate d. strip
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The steel wire wheel on a bench grinder can be used to clean ________
A) Threads of bolts B) Aluminum surfaces C) Both A and B D) Neither A nor B
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What type of antenna is divided into a matrix of radiating elements and are used in modern radar systems?
A. switched beam B. horn C. patch D. phased array
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