Which of the following systems has achieved the highest gain in popularity in recent past years?
A) Videoconferencing.
B) Time and program systems.
C) Wireless telephone.
D) Sound systems.
A) Videoconferencing.
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Technician A says that toe is the angle that is adjusted last during alignment. Technician B says that caster is the angle that is adjusted first during alignment. Who is correct?
A. Technician A B. Technician B C. Both A nor B D. Neither A nor B
What part separates the lower valve body from the upper valve body?
A) Valve body channel B) Separator plate C) Divider D) Valve springs
For an evaporator to operate at peak efficiency, _____.
a. the fin spacing should be very wide b. all of the surface area inside the tubes must be exposed to flashing liquid c. the coil temperature should always be higher than the dew point of the air d. the subcooling of the entering refrigerant should be kept to a minimum
If a condensing unit is rated at 24,000 btuh and the evaporator is rated at 12,000 btuh, what is the total system capacity?
a. 12,000 btuh b. 18,000 btuh c. 24,000 btuh d. 36,000 btuh.