Which type of heat pump system can be used with a hot water radiant floor heating system?
A) water to air B) air to air
C) air to water D) traditional mini-split
C
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When the clutch is released (clutch pedal down) ________.
A) The pilot bearing is pressed toward the engine B) Springs force the pressure ring toward the flywheel C) The release (throwout) bearing is used to move the pressure ring toward the clutch cover D) Springs force the pressure ring toward the clutch cover
TechnicianA says when working around electric cooling fan motors, the power source should be disconnected. TechnicianB says when the ignition switch is in the off position, it is safe to work around electric cooling fan motors. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Technician A says that in a parallel hybrid hydraulic (PHH) drivetrain, drive torque is provided exclusively by a hydraulic motor. Technician B says that in a series hybrid hydraulic (SHH) drivetrain, drive torque is provided exclusively by a hydraulic motor. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Which of the following will determine how much fuel is injected by a Cummins HPI-TP injector in any given cycle?
A. duration (time) the metering actuator is energized B. fuel quantity in the timing chamber C. length of the metering plunger stroke D. common rail pressure