Question 75Refrigeration/AC - 1st Asst/Chief70% to pass
Excessively tight drive belts installed between a motor and a refrigeration compressor pulley may cause what condition?
AI Explanation
The correct answer is A) premature wear of both the pulley end motor shaft bearing and the pulley end compressor crankshaft main bearing due to overloading.
Explanation:
Excessively tight drive belts installed between a motor and a refrigeration compressor pulley will create excessive tension and load on the motor shaft bearing and the compressor crankshaft main bearing. This overloading can lead to premature wear and failure of both the motor shaft bearing and the compressor crankshaft main bearing.
The other answer choices are incorrect because:
B) Belt slippage would not occur with excessively tight belts.
C) and D) Only one bearing would not experience premature wear.
Related Questions
#73 In addition to the drive belt itself, a V-belt that is tensioned too tight will cause excessive wear to what other drive component? #74 When one belt of a multiple V-belt drive requires replacing, what will be required? #76 When installing a mechanical shaft seal on a refrigeration compressor, extreme care must be taken to prevent what from happening? #77 Heat is removed from the refrigerant circulating through the refrigeration system, shown in the illustration, by which component? Illustration GS-RA-12 #78 Zinc plates commonly found in refrigeration systems and used as sacrificial anodes are located where?