A low-velocity fastening system that is used to drive steel pins or threaded studs into masonry and steel is a(n)

_____.

a. pneumatic screw nailer
b. powder-actuated tool
c. air impact wrench
d. mini hammer drill


b

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List some of the design requirements for hoistways.

What will be an ideal response?

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Una carcasa _____ es totalmente encerrada.

a. a prueba de goteo b. a prueba de salpicaduras c. a prueba de explosión d. protegida del clima

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The number of federal milk marketing orders has been declining for a number of years, dropping to

_____ in 2012.

a. 5 c. 15 b. 10 d. 20

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When leak testing a low-pressure chiller, the pressure should not be allowed to exceed 10 psig to avoid:

A) Opening the high-pressure cutout and shutting the system down. B) Freezing the chiller bundle. C) Breaking the rupture disk and losing the refrigerant charge. D) High compressor current draw.

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