更多"The purpose of a preventer as it is"的相关试题:
[单项选择]A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a （）.
A. dump valve
B. deflector
C. separator
D. diverter
[单项选择]Which of the following components are used to convert alternating current produced in the generator windings to direct current?（）
A. Armature and equalizer
B. Commutator and brushes
C. Rotor and interpoles
D. Field and exciter
[单项选择]The preventer guy，as used on a conventional yard and stay rig，（）.
A. is rigged at an angle of 70°to 90°from the guy it assists
B. takes the strain imposed on the schooner guy when burtoning cargo
C. is rigged when lifting cargo that exceeds the SWL of a single whip
D. should take the strain if the regular guy parts
[单项选择]The purpose of the wearing rings used in a centrifugal pump is to （）.
A. prevent an internal explosion in the pump when it is overheated
B. enable a visual inspection of the pump while it is running
C. insure a proper alignment of the pump coupling to the driver
D. accommodate for friction between the impeller and the easing
[单项选择]The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.
A. assist in a quick cutoff of fuel injection
B. allow oil backflow from the injector to the helix
C. reduce fuel oil pressure between injection strokes
D. meter the quantity of fuel delivered
[单项选择]Water fog from an all-purpose nozzle may be used to（）.
A. fight an electrical fire
B. fight a magnesium fire
C. eliminate smoke from a compartment
D. All of the above
[单项选择]The purpose of the compensating adjustment used in a diesel engine hydraulic governor is to （）
A. compensate for low oil level
B. increase governor promptness
C. prevent governor hunting
D. limit engine load
[单项选择]A preventer guy（）.
A. prevents anyone from working the cargo at unauthorized times
B. is a safety measure in case one of the outboard guys parts
C. is a longshoreman who watches for accidents
D. is the same as a blacksmith
[单项选择]Preventer bars are fitted on lifeboat releasing hooks to prevent（）.
A. the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
B. operation of the release lever until the boat is waterborne
C. the falls from rehooking after they have been released
D. accidental unhooking when the falls become slack
[单项选择]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
[单项选择]The shear rams of a ship blowout preventer stack are used in emergency well control to（）.
A. close and seal around the drill pipe
B. close and seal around casing
C. cut off pipe inside the preventer stack
D. close and seal around drill collars
[名词解释]General purpose registers
[判断题]命令w=conv（u，v）表示多项式u和v相乘。
[填空题]CONV是（）告警，它会引起一个或多个模块退出服务。
[单项选择]The principal purpose of magnetic compass adjustment is to（）.
A. reduce the variation as much as possible
B. reduce the deviation as much as possible
C. reduce the magnetic dip as much as possible
D. allow the compass bowl to swing freely on its gimbals
[单项选择]The purpose of PSC is （）
A. to check and inspect foreign ships
B. to verify the condition of a ship in compliance with requirements of international conventions
C. to fine ships
D. to detain ships
[单项选择]The principal purpose of adjustment of the magnetic compass is to eliminate（）as far as possible.
A. variation
B. compass error
C. deviation
D. earth‟s magnetic force
