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【单项选择题】

The diameter of the gravity disc is too big It causes oil to flow through the water outlet We changed the disc and no （） is found in the water outlet.

A、A.water

B、B.oil

C、C.scale

D、D.ridge

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更多“The diameter of the gravity disc is too big It causes oil to flow through the water outlet We changed the disc and no （） is found in the water outlet.”相关的问题
第1题
[单选题] The grip of a joint represents the（）.

A、thickness of the connected members  B、diameter of the head  C、entire length of the rivet  D、diameter of the shank  

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第2题
[单选题] The “grip” of a joint represents the（）.

A、thickness of the connected members  B、diameter of the head  C、entire length of the rivet  D、diameter of the shank  

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第3题
[] The discharge head of a centrifugal pump will vary directly with the （）.

A、A.change in impeller diameter  B、B.square of the impeller diameter  C、C.cube of the impeller diameter  D、D.impeller efficiency for large changes in the size of the impeller  

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第4题
[单选题] Increasing the speed of a centrifugal pump will result in an increase in its capacity Another means of increasing the capacity of a centrifugal pump is to increase the （）.

A、diameter of the discharge piping, with all other factors remaining the same  B、diameter of the suction piping, with all other factors remaining the same  C、width of the impeller only  D、diameter of the impeller  

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第5题
[单选题] Increasing the speed of a centrifugal pump will result in an increase in its capacity in its capacityAnother means of increasing the capacity pump is to increase the（）

A、diameter of the discharge piping, with all other factors remaining the same  B、diameter of the suction piping, with all other factors remaining the same  C、width of the impeller only  D、diameter of the impeller  

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第6题
[单选题] The cheek length of a block in inches should be about（）.

A、three times the circumference of a manila line  B、five times the diameter of a manila line  C、twice the diameter of its sheaves for manila line  D、twenty times the diameter of a manila line  

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第7题
[单选题] The outside diameter of the pipe is （） the diameter of the bore of the piston rod, the result being that an annular space formed between the piston rod and the pipe.

A、less than  B、greater than  C、equal to  D、twice larger than  

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第8题
[单选题] The outside diameter of the pipe is （） the diameter of the bore of the piston rod, the result being that an annular space formed between the piston rod and the pipe.

A、less than  B、greater than  C、equal to  D、twice larger than  

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第9题
[单选题] The discharge rate or capacity of a centrifugal pump will vary directly as the （）.

A、change in the impeller diameter  B、square of the impeller radius  C、cube of the impeller diameter  D、impeller efficiency for large changes in its size  

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第10题
[单选题] The cubic inch(or liter) displacement of a cylinder is determined by the diameter of the piston and the （）

A、length of the crankshaft  B、volume of the clearance space  C、weight of piston  D、length of the stroke  

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