Pneumatic staplers and nailers are commonly called ____.

a.tubes
b.rods
c.blasters
d.guns


ANS: D

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Which of the following acronyms is commonly used to describe the actual ratio of fuel and air in a combustion reaction?

A. ASTM B. AFR C. SSU D. RON

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The __________ of a house blocks air from moving between the inside of the house and the outside and holds the conditioned (heated or cooled) air in the house.

a. floor b. basement c. roof d. air barrier

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Technician A says that measuring SAI and included angle can help in diagnosing poor cradle alignment. Technician B says that alignment angles can often reveal bent suspension or steering components. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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Which of the following statements about metal raceways and enclosures for service conductors is true?

A. To be considered grounded, the metal raceway must be connected directly to a grounding electrode. B. Metal raceways for service conductors are considered grounded if they are connected to a service enclosure that is grounded. C. The metal pulling elbows in a run of underground nonmetallic conduit are required to be grounded irrespective of burial depth. D. The metal pulling elbows in a run of underground nonmetallic conduit are required to be grounded only if they are within 12 in. (304 mm) of the surface.

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