A) A only
B) B only
C) Both A and B
D) Neither A nor B
If the air inlet to a centrifugal fan is restricted:
A) The fan operation will be unaffected. B) The fan motor current draw will decrease.
C) The fan motor current draw will increase. D) The fan RPM will decrease.
B
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The reading from a wet-bulb thermometer ____.
A. is the same as the wet-bulb depression B. is the saturation pressure C. takes into account the moisture content of the air D. is always higher than the dry-bulb temperature
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How do you check system performance during the heating cycle?
A) Consult system pressure charts for indoor and outdoor temperatures. B) Recharge the system with the correct amount of refrigerant. C) Attach a low-pressure gauge to the vapor line. D) Recharge the system using a heating performance check chart.
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Technician A says that a wye-wound stator produces more maximum output than the same alternator equipped with a delta-wound stator. Technician B says that an alternator equipped with a delta-wound stator produces more maximum output than a wye-wound stator. Who is right?
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A continuous-time signal x (t) is sampled above its Nyquist rate to form a discrete-time signal x[n] and is also impulse sampled at the same rate to form a continuous-time impulse signal
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