PART 2 MULTIPLE CHOICE/TRUE OR FALSE (a Polnte Each) ach of the following questi

Question

PART 2 MULTIPLE CHOICE/TRUE OR FALSE (a Polnte Each) ach of the following questions Cree the lefter that eorresponds to the eorreet answer in e t. Heat can be transferred by A. Radiation B. Thermal transmittance C. Convection D. All of the above E. A and C only 2. Typetypes of grid/grids used on suspended ceilings include A. Suspended grid B. Semi-exposed grid C. Electrical grid D. All of the above. E. A and B only 3. Toynes of conduit that are in general use for electrical systems include A. Electric metallic tubing B. Rigid steel C. Metal raceways D. All of the above E. A and C only fullouine nurnose or purposes

Explanation / Answer

1) answer E

Heat can be transferred from one place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass.

Thermal transmittance, also known as U-value, is the rate of transfer of heat.

2) answer A

3) answer D

Types of Conduit

Conduit systems are classified by the wall thickness, mechanical stiffness, and material used to make the tubing. The most common types of conduit are:

First: Metal Conduit

Second: Non-metal Conduits

Third: Flexible Conduits

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