True or false? The ultimate source of most of the energy we use is the sun
What will be an ideal response?
True. Coal, oil, and wood are all produced from plants that captured energy from the sun. Even water power results
from water set in motion by sunlight.
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Why is there a letter R next to the outlet boxes for the Type C lighting fixtures in Figure 2?
a. They are exit lights.
b. They all have receptacle outlets next to the fixtures.
c. The lights have been revised from the original plan.
d. The fixtures are recessed.
Explain dimensioning and tolerancing.
What will be an ideal response?
Vacuum power brakes are being discussed. Technician A says vacuum on both sides of the diaphragm doubles the amount of force on the master cylinder pistons. Technician B says the return spring forces the diaphragm to the forward position when there is vacuum on both sides of the diaphragm. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
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