The grinders that are designed to reach into small areas with limited work space are _____ grinders.
a. side
b. angle
c. vertical
d. die
d. die
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A bond beam in a masonry bearing wall building must be _________.
A) a steel, reinforced-concrete, or reinforced-masonry beam. B) a reinforced-concrete or reinforced-masonry beam. C) a steel, reinforced-concrete, reinforced-masonry, or wood beam. D) a steel or reinforced-concrete beam. E) none of the above.
The purpose of the air occupant restraint controller is to
A. supply back-up power to the system. B. determine if there is a fault in the system. C. monitor the system. D. All of the above.
A mechanical support framing system is shown in Figure P2.11. The framing consists of steel floor grat-ing over steel beams and entirely supported by four ten-sion hangers that are connected to floor framing above it. It supports light machinery with an operating weight of 4000 lbs, centrally located. (a) Determine the impact factor I from the Live Load Impact Factor, Table 2.3. (b) Calculate the total live load acting on one hanger due to the machinery and uniform live load of 40 psf around the machine. (c) Calculate the total dead load acting on one hanger. The floor framing dead load is 25 psf. Ignore the weight of the hangers. Lateral bracing is located on all four edges of the mechanical floor framing for stability and transfer of lateral loads.
Evaporative cooling systems work by:
A) Evaporating refrigerant inside a component called an evaporator. B) Evaporating HFC refrigerants into the air, which reduces the temperature. C) Evaporating the heat out of the air which makes the heat disappear. D) Evaporating water, which reduces the temperature of the air.