网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
单选题
What is NOT a function of the steam drum of a marine water-tube boiler().
A
Receives saturated steam from the generating tubes
B
Serves as a reservoir of boiler feed water
C
Holds internal fittings for separation of moisture from steam
D
Collects steam exhausted from the turbines
参考答案
参考解析
解析:
暂无解析
更多 “单选题What is NOT a function of the steam drum of a marine water-tube boiler().A Receives saturated steam from the generating tubesB Serves as a reservoir of boiler feed waterC Holds internal fittings for separation of moisture from steamD Collects steam exhausted from the turbines” 相关考题
考题
(b) What advantages and disadvantages might result from outsourcing Global Imaging’s HR function?(8 marks)
考题
When defining a function activity, what is true about the Result Type?() (Choose two.)
A. Result Type is optional.B. Result Type is mandatory.C. Result Type can be changed after it is assigned to the function activity.D. Result Type should belong to the same item type as the function activity
考题
The water level showing in a boiler water gauge glass is usually ( ) duringworking.A.higher than the actual drum water levelB.equal to the actual drum water levelC.increasing due to steam condensation in the glassD.lower than actual drum wafer level
考题
What requires a Report of Marine Accident,Injury or Death?A.Collision with a bridgeB.Injury beyond first aidC.loss of lifeD.All of the above
考题
What is NOT required on an uninspected towing vessel?A.Certificate of DocumentationB.Certificate of InspectionC.Operators Merchant Marine licenseD.FCC Station License
考题
All marine low-speed diesels are of what design ________.A.Four-strokeB.Two-strokeC.Electronic ignitionD.Forced exhaust
考题
汉译英:“塑料桶、麻袋、木箱”( )。
A. plastic drum; gunny bag; wooden case B. wooden case; plastic drum; gunny bag
C. wooden case; gunny bag; plastic drum D. plastic drum; wooden case; gunny bag
考题
单选题Which of the following statements describes the function of an expansion tank in a diesel engine cooling system?()A
Maintains a constant head on the systemB
Reduces the likelihood of air or steam pockets formationC
Provides a low pressure point for the addition of makeup cooling waterD
All of the above
考题
多选题When defining a function activity, what is true about the Result Type?() (Choose two.)AResult Type is optional.BResult Type is mandatory.CResult Type can be changed after it is assigned to the function activity.DResult Type should belong to the same item type as the function activity
考题
单选题The main function of the drawworks on a ship is to().A
transport tubulars from the pipe racks to the derrick floorB
maintain constant tension on the marine riserC
store and secure the excess drill lineD
lower and hoist the drill string into and out of the drilled hole
考题
单选题When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will()A
rise quicklyB
rise slowlyC
drop quicklyD
drop slowly
考题
单选题A gypsy or gypsyhead is a().A
punt used for painting over the sideB
small, reciprocating steam engineC
spool-shaped drum fitted on a winchD
swinging derrick
考题
单选题Which of the following will be the function of lubricating oil used in marine engines?()A
to remove heat from oil cooled pistonsB
to wash away wear detritusC
to neutralize acidic productsD
all of the above
考题
单选题When a sudden increase in steam demand comes to normal, the drum pressure will and water level in the drum will().A
rise, rise alsoB
rise, dropC
drop, riseD
drop, drop also
考题
单选题What is an advantage of a steam turbine over a diesel for the main propulsion?()A
Faster response from ahead to asternB
Less fuel consumptionC
Cheaper initial installation costD
Less weight per unit of horsepower
考题
单选题When the boiler load returns to normal, the drum pressure will rise and steam bubble formation will reduce, causing a fall in water level This is known as ().A
swellB
shrinkageC
flash offD
lack of water
考题
单选题What is NOT required on an uninspected towing vessel? ()A
Certificate of DocumentationB
Certificate of InspectionC
Operators Merchant Marine licenseD
FCC Station License
考题
单选题What does the term end-for-end refer to in regard to a wire towing hawser().A
Cutting off the bitter and towing ends of the wire ropeB
Splicing two wire ropes togetherC
Removing the wire rope from the drum and reversing it so that the towing end becomes the bitter endD
Removing the wire rope from the drum and turning it over so that the wire bends in the opposite direction when rolled on a drum
考题
单选题What is the calling and distress frequency on a single side band (SSB) marine radiotelephone?()A
1492 kHzB
1892 kHzC
2082 kHzD
2182 kHz
考题
单选题What requires a Report of Marine Accident,Injury or Death?()A
Collision with a bridgeB
Injury beyond first aidC
loss of lifeD
All of the above
考题
单选题The boiler feed pump discharge pressure is higher than the steam drum pressure to ().A
ensure feed water flow into the boilerB
keep the steam drum pressure highC
prevent water hammer in the feed lineD
help the feed water flash to steam
考题
单选题The water level showing in a boiler water gauge glass is usually () during working.A
higher than the actual drum water levelB
equal to the actual drum water levelC
increasing due to steam condensation in the glassD
lower than actual drum water level
考题
单选题Foaming in the steam drum may be caused by () in a boiler.A
oxygen in the waterB
poor boiler designC
density too highD
excessive steam demand
热门标签
最新试卷