单选题A reciprocating air compressor is running roughly and vibrating excessively, indicating that the ().Acompressor is overloadedBmotor is overloadedCfoundation bolts are looseDbelts are too tight

单选题
A reciprocating air compressor is running roughly and vibrating excessively, indicating that the ().
A

compressor is overloaded

B

motor is overloaded

C

foundation bolts are loose

D

belts are too tight


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