Water heater efficiency is rated by the ____________________, a percentage of how much of the purchased fuel energy is converted into usable hot water.
a. BTU
b. HSPF
c. energy factor
d. therm
ANSWER: c
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Technician A says that secondary fuel filters can entrap particles smaller than the eye can see. Technician B says that primary filters cannot entrap particles smaller than a section of a human hair. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Identify the nozzle capable of soft opening pressures?
A. electrohydraulic B. multi-orifii in EUIs C. pintle D. pencil
Perform the indicated operation and solve:12 x (2 + 4) =
What will be an ideal response?
For each of the systems with the pole-zero diagrams in Figure E.53 find the discrete-time radian frequencies, ? max and ? min , in the range, ? ? ? ? ? ? for which the transfer function magnitude is a maximum and a minimum. If there is more than one value of ? max or ? min , find all such values.
