Determine the reactions at supports A and E in Figure P9.46. EI is constant for all members.


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The HVAC system is also referred to as the ____ system of the building, providing heat, fresh or conditioned air, and ventilation.

A. mechanical B. structural C. ventilation D. reclamation

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An air-conditioning unit provides 125 kW of cooling while using power at a rate of 58 kW. Determine the coefficient of performance of this air conditioner (refrigerator).

Given: Q?C = 125 kW; W? = ?58 kW What will be an ideal response?

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What should be the condition of the soil at the time water plants are planted?

a. dry and aerated c. wet to near mudlike b. dry and sandy d. damp

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Small synchronous motors generally contain ____ slip rings on the rotor shaft.

A. zero B. two C. four D. six

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