Hoisting or rigging operations must be halted when the temperature is _____.

a. over 90°F
b. low enough that hoist or crane steel structures could fracture upon shock or impact
c. below 32°F
d. high enough that workers may suffer heat exhaustion if they don't take precautions


b. low enough that hoist or crane steel structures could fracture upon shock or impact

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Short-term fuel trim (STFT) adds or subtracts fuel to correct for:

A. Permanent changes. B. Small or temporary changes. C. Changes in the O2 sensor signal. D. Both B and C

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?A ____ distribution is characterized by a clustering of values around a central point and being well-centered on the mean. 

A. ?deviation B. ?skewed C. ?normal D. ?nonsymmetrical

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The leverage of the load increases as _____.

a. the boom is lowered toward a horizontal position b. the boom is raised toward a vertical position c. a telescopic boom is retracted d. the amount of counterweight is increased

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The nucleus of animal cells is surrounded by a thick, clear fluid known as the ____________________

Fill in the blank(s) with correct word

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