An energy-saving routine used with VAV systems that is active in the unoccupied hours of the early morning is called _____.
a. morning warm-up
b. night-time free cooling
c. building pressurization
d. demand-control ventilation
b. night-time free cooling
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Secretions of the endocrines are called ____________________.
Fill in the blank(s) with the appropriate word(s).
Technician A says that in a diesel CR fuel system, the rail supplies all of the injectors required to fuel the engine. Technician B says that the rail pressures in a diesel CR fuel system are widely variable. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Technician A says that when fifth wheel brackets are bolted to frame rails, the section modulus over that section of the frame is increased. Technician B says that installing inverted L-section reinforcements is preferred to L-section reinforcements because the section modulus is not affected. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
There are three methods of coupling energy into or out of a waveguide: probe, loop, and __________
A. aperture B. transverse electric C. dominant mode D. flexible