更多"During compressors running the accu"的相关试题:
[单项选择]During the diesel engine running, the water level of FW expansion tank should normally kept in the （） level of glass tube.
A. the highest
B. above 3/4
C. 1/2-3/4
D. the lowest
[单项选择]During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should （）
A. notify the duty officer, reduce the engine speed, take some measures to remove failures
B. notify the duty officer and stop the engine immediately, find the cause and remove failures
C. notify the C/E
D. notify the captain
[单项选择]Intercoolers installed on starting air compressors, reduce the possibility of（）
A. dust entering the high pressure stage
B. lube oil carbonization
C. discharge pulsations
D. inter-stage vapor lock
[单项选择]Air compressors are equipped with unloading systems for the purpose of（）.
A. removing all but the frictional load during starting
B. relieving intercoolers of high temperature buildups
C. providing high starting torque in the drive motor
D. seating valve plates during compressor shutdown
[单项选择]Air compressors are NOT permitted in which space(s) on a tank barge carrying grade A cargo?（）
A. A cargo handling room
B. A space in which cargo hose is stored
C. An enclosed space containing cargo piping
D. All of the above
[单项选择]On small, low pressure, air compressors, the cylinders are usually lubricated by the （）.
A. splash method
B. mechanical force feed lubricators
C. detached sump method
D. internal cooling passages in the crankshafts and connecting rods
[单项选择]The （） stage air compressors are widely used on board the ship.
A. single
B. Ⅱ
C. Ⅲ
D. multiple
[单项选择]Metal particles accumulated from the wearing of components in a diesel engine can result from lube oil that has been contaminated with（）.
A. abrasive particles
B. metallic oxides
C. corrosive acids
D. any or all of the above
[单项选择]What is NOT running rigging（）.
A. Downhaul
B. Backstay
C. Halyard
D. Sheet
[单项选择]Aboard ship，vertical flat plates running transversely and connecting the vertical keel to the margin plates are called（）.
A. floors
B. intercostals
C. girders
D. stringers
[单项选择]You are running into danger,（）.
A. shallow water ahead of you
B. submerged wreck ahead of you
C. risk of collision imminent
D. A, B, C are all right
[单项选择]When a clarifier is running the impurities and water collect at the bowl （）.
A. center
B. periphery
C. inlet
D. upper parts
[单项选择]Securing cargo by running timbers from an upper support down to the cargo，either vertically or at an angle，is called（）.
A. braces
B. dunnage
C. shores
D. toms
[单项选择]You are running parallel to the coast and estimate that the current is against you.In plotting a running fix using bearings from the same object on the coast，the greatest safety margin from inshore dangers will result if what speed is used to determine（）.
A. Minimum speed estimate
B. Maximum speed estimate
C. Average speed estimate
D. A running fix should not be used under these conditions
[单项选择]To parallel an incoming machine to a running machine therefore it is necessary to ensure firstly that （）.
A. two frequencies must be brought into phase
B. the incoming machine accepts a small amount of load
C. the running machine must be unload
D. both voltages are equal
[单项选择]Weight is considered during the periodic required inspection and servicing of（）.
A. CO2 (carbon dioxide) fire extinguishers
B. foam fire extinguishers
C. water (stored pressure) fire extinguishers
D. All of the above
[单项选择]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
[单项选择]During the voyage he encountered boisterous winds and heavy weather during which time the vessel（）heavily and to such an extent that at times it was necessary to change course.
A. moved
B. labored
C. drove
D. went
