搜题

【单选题】

A drilled hole is accurately finished to size with a （）

A、center drill

B、finish drill

C、broach

D、reamer

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更多“A drilled hole is accurately finished to size with a （）”相关的问题

第1题

[单选题] A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a（）.

A、diverter bit B、hole reamer C、core bit D、conventional bit

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第2题

[单选题] A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.

A、heavy-walled drill pipe B、tool joint C、down hole tool D、drill collar

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第3题

[单选题] The main function of the drawworks on a ship is to（）.

A、transport tubulars from the pipe racks to the derrick floor B、maintain constant tension on the marine riser C、store and secure the excess drill line D、lower and hoist the drill string into and out of the drilled hole

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第4题

[单选题] In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.

A、swivel B、cathead spool C、drawworks D、stand pipe

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第5题

[] A set of clamps that are latched onto the drill pipe to allow the driller to raise or lower the drill string out of or into the hole are the（）.

A、A.lifts B、B.collars C、C.elevators D、D.clamps

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第6题

[单选题] Ordnance exercise is（）.

A、Naval firing practice B、Fire drills C、Crew drills D、Survival drills

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第7题

[单选题] In order to ensure there is proper airflow in a new computer, which of the following should be performed?（）

A、Install a passive hard drive cooler. B、Unplug the redundant power cables from the motherboard. C、Install rounded IDE cables. D、Drill holes in the PC's case to create more airflow

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第8题

[单选题] An integral part of a blowout preventer that serves as the closing element on an open hole，and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the（）.

A、shear ram B、blind ram C、pipe ram D、annular ram

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第9题

[单选题] A centrifugal pump vibrates excessively during operationUpon disassembling the pump it is found that the impeller is out of balanceWithout an available spare, you should （）.

A、drill holes through the heavy side of the impeller until it balances B、weld counterweights to the light side of the impeller C、remove metal from the heavy side by machining in a lathe D、acid wash and serape the heavy side until it balances

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