更多"Tube leaks in the distillate cooler"的相关试题:
[单项选择]To obtain maximum efficiency, two stage air compressors are usually （）.
A. horizontally mounted
B. never fitted with intake filters
C. fitted with intercoolers
D. operated in an unloaded condition at all times
[单项选择]In the two stage flash distilling plant, which of the pumps listed is vented to the shell of the second stage in order to remove vapor from the pump suction?（）
A. Condenser circulating water pump
B. Feed-water heater drain pump
C. Distillate pump
D. Air ejector condenser drain pump
[单项选择]Why will a two stage flash type distilling plant tend to operate more efficiently when operating in cold seawater?（）
A. The colder seawater passing through the condenser tube bundles of the various stages increases evaporator vacuum
B. The amount of heated feed water discharged from the feed water heater after cndenser is increased
C. Fewer non-condensable gases are created by the flow of colder seawater
D. More seawater is allowed to pass through the flint stage overflow weir
[单项选择]Flames from small leaks of LFG may be extinguished by（）.
A. utilizing carbon dioxide or dry chemical fire extinguishers
B. utilizing soda and acid fire extinguishers
C. blowing the flames out
D. letting it burn itself out
[单项选择]Puncture leaks in the lower tubes or bottom of an inflatable liferaft should FIRST be stopped by using（）.
A. sealing clamps
B. repair tape
C. a tube patch
D. sail twine and vulcanizing kit
[单项选择]Small hull leaks can be temporarily repaired by（）.
A. parcelling
B. parbuckling
C. caulking
D. seizing
[单项选择]“Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired, or at least patched up temporarily until the next stop” This sentence means that （）.
A. Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the spot
B. Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the next port of call
C. Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired until the next stop
D. Any leaks in piping, propeller shaft, machinery, tanks, will have to be at least patched up
[单项选择] 在Bootloader的stage1中，以下各步骤的顺序应为（）。 1.跳转到stage2的C程序入口点 2.为加载stage2准备RAM空间 3.拷贝stage2的执行代码到RAM空间中 4.基本硬件初始化
A. 2413
B. 4231
C. 4213
D. 4321
[单项选择]Fins are installed on the generating tube surfaces in waste heat boilers to （）.
A. prevent soot fires in the exhaust system
B. prevent exhaust gas erosion of the tubes
C. increase the velocity of exhaust gas flow
D. increase the rate of heat transfer
[多项选择]What are two characteristics of Telnet (Choose two.)（）。
A. Itsendsdataincleartextformat.
B. ItisnolongersupportedonCisconetworkdevices.
C. ItismoresecurethanSSH
D. Itrequiresanenterpriselicenseinordertobeimplemented.
E. ItrequiresthatthedestinationdevicebeconfiguredtosupportTelnetconnections.
[单项选择]At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
A. 200
B. 300
C. 400
D. 800
[单项选择]Condensate formed within the first-effect tube nest of a double-effect,low pressure evaporator, is removed by a （）.
A. series of baffles
B. crossover pipe
C. condensate separator
D. drain pump
[单项选择]You（）a big step toward overcoming stage fright if you（）positively
A. take；think
B. will take；will think
C. take；will think
D. will take；think
[单项选择]When lowering manropes alongside a stage rigged over the side of a vessel，they should be allowed to trail in the water（）.
A. to easily remove the kinks that form in the lines
B. to allow the seamen on the stage to know the direction and strength of the current
C. to provide the seaman something to hold onto if he or she falls from the stage into the water
D. only for short periods of time since they will become waterlogged and be very heavy to pull up
[单项选择]The clearance volume for a single stage compressor is defined as the space created between the （）.
A. top of the piston and bottom side of head, with the piston at BDC
B. piston and head, including the space around the piston to the top of the upper ring and under the valves, with the piston at TDC
C. bottom of the piston and bottom side of the head at TDC, regardless of upper ring location and valve placement
D. top of the piston and bottom side of the head at TDC as compared to that which exists between the top of the piston and bottom side of head at BDC
[单项选择]The knot used to join two lines or two large hawsers for towing is called a（）.
A. square knot
B. carrick bend
C. sheet bend
D. bowline
[单项选择]Fusible plugs are installed in fire-tube boilers to （）.
A. provide a means of draining the boiler
B. warn the engineer of low water level
C. cool the crown sheet at high firing rates
D. open the burners electrical firing circuits
[单项选择]A distorted furnace in a fire-tube auxiliary boiler may be the result of （）
A. firing for extended periods in the low fire mode
B. overheating, due to waterside deposits
C. varying the water level above the crown sheet
D. carrying excessive alkalinity in the boiler water
