更多"The exhaust pipe must be gas tight "的相关试题:
[单项选择]Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.
A. cargo pump failure
B. blower failure
C. deck seal low water level
D. low inert gas temperature
[单项选择]Provision must be made in pipe systems for changes in length due to change of temperatureThe bold and italic word “provision” probably means （）.
A. flanges
B. nuts
C. expansion joints
D. bolts
[单项选择]Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.
A. 5% or less
B. 10% or less
C. 15% or less
D. 20% or less
[单项选择]Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure（）.
A. nitrogen
B. oxygen
C. carbon dioxide
D. water vapor
[判断题]The new launch date is very tight.‘Tight’ here means not leaving enough time.
[单项选择]Hot gas defrosting uses the hot gas from （） to defrost the evaporator.
A. starting air bottles
B. diesel engines
C. boilers
D. refrigeration compressors
[单项选择]Gas masks（）.
A. should be worn while fighting a fire
B. can be used in atmospheres deficient in oxygen
C. filter contaminants from air that is to be breathed
D. may be substituted for a self-contained breathing apparatus
[单项选择]When hanging off drill pipe in emergency situations aboard a ship，the preferred location of the drill bit is（）.
A. on bottom with the full drill string in tension
B. one stand (approximately 93 feet) off bottom
C. no deeper than the shoe of the last casing set
D. as close to the surface as possible
[名词解释] 干线型肝硬变（pipe stem cirrhosis）
[单项选择]Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
A. flash point
B. upper explosive limit
C. lower explosive limit
D. fire point
[单项选择]A combination combustible gas and oxygen indicator is an instrument that measures the（） of both combustible gas and oxygen; each is indicated on a separate meter.
A. purifies
B. combinations
C. concentrations
D. filters
[单项选择]The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.
A. string
B. stand
C. joint
D. standpipe
[单项选择]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
[单项选择]Attention is called to the fact in many cases pipelines are not buried and charted depth may be decreased（）up to teo meters.
A. with
B. by
C. on
D. in
[单项选择]“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?” asked the oil barge owner （）
A. by using of fresh water
B. with compressed air
C. by using of sea water
D. with chemical compound
[单项选择]Airport security was extra tight（）yesterday's bomb attacks.
A. in the wake of
B. since
C. inspite of
D. during
[单项选择]Any ship damaging a pipe could（）an immediate danger of fire.
A. meet
B. face
C. be in font of
D. follow
