更多"The simplest method to use for dete"的相关试题:
[单项选择]One method of determining crankshaft misalignment is by（）
A. laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places
B. measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution
C. rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom
D. taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation
[单项选择]The most accurate method of determining gyrocompass error while underway is by（）.
A. Comparing the gyro azimuth of a celestial body with the computed azimuth of the body
B. Comparing the gyro heading with the magnetic compass heading
C. Determining from the chart the course made good between celestial fixes
D. It cannot be determined accurately at sea due to drift of unknown currents
[单项选择]Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?（）
A. Check the tag to see when the extinguisher was last charged
B. Release a small amount of CO2; if the CO2 discharges，the extinguisher is acceptable
C. Weigh the extinguisher and compare the weight against that stamped on the valve
D. Recharge the extinguisher at least once each year
[单项选择]The best method of determining if a vessel is dragging anchor is to note（）.
A. the amount of line paid out
B. how much the vessel sheers while at anchor
C. any change in the tautness of the anchor chain
D. changes in bearings of fixed objects onshore
[单项选择]The single acting cylinder is the simplest form where pressure is applied to the full area of the piston head to move the load through piston rod extensionThe load causes rod （） when the drive pressure is released.
A. contraction
B. retraction
C. expansion
D. shrinkage
[单项选择]In its simplest form the pressure reducing valve is opened or closed by （） which is balanced by the downstream pressure acting on a diaphragm.
A. adjusting a nut
B. a pre-tensioned spring
C. any spring
D. upstream pressure
[单项选择]Vehicles（）only the simplest of the engine improvements that methanol makes feasible would still contribute to an immediate lessening of urban air pollution.
A. corporate
B. cooperating
C. operating
D. incorporating
[单项选择]From the passage, we can learn that the simplest controller action is（）
A. two-step controller action
B. proportional, controller action
C. integral controller action
D. derivative controller action
[单项选择]Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker? （）
A. Contamination of the cargo
B. Flash points
C. Reid vapor pressures
D. Specific gravities
[单项选择]The reference datum used in determining the heights of land features on most charts is（）.
A. mean sea level
B. mean high water
C. mean low water
D. half-tide level
[单项选择]For determining the amount of chains used in anchoring operation,which one of the following factors wouldn’t be considered?（）.
A. selection of landmarks
B. character of sea bottom
C. strength of current and wind force
D. radius of ship swing to wind or tide
[单项选择]In determining if risk of collision exists the following considerations shall be among（）.
A. these taken into calculation
B. those taking into account
C. that taken into account
D. those taken into account
[单项选择]What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions（）.
A. One shot of chain for every ten feet of water
B. One shot of chain for every fifteen feet of water
C. One shot of chain for every thirty feet of water
D. One shot of chain for every ninety feet of water
[单项选择]The main factor determining the output of each cylinder is the cylinder （）.
A. density
B. bore
C. weight
D. material
[单项选择]In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.
A. Depth of the water
B. Character of the holding ground
C. maintenance cost for the chain
D. Type of anchor cable
[单项选择]In determining the scope of anchor line to pay out when anchoring a small boat，one must consider the（）.
A. charted depth of water only
B. depth of water，including tidal differences
C. time and date of anchoring
D. type of anchor being used
[单项选择]In determining that the（）of the navigational watch is adequate to ensure that a proper look-out can continuously be maintained，the master shall take into account all relevant factors.
A. disposition
B. composition
C. reposition
D. position
[单项选择]In determining if risk of collision exists，if there is any doubt，such risk shall be deemed to（）.
A. exist
B. exists
C. existing
D. to be existed
