更多"The most accurate method of determi"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]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 simplest method to use for determining if a centrifugal pump is operating as designed, is to （）.
A. closely observe the pump discharge temperature
B. close off the discharge valve, and watch for a rise in pressure
C. momentarily close off the suction valve, and watch for a rise in pressure
D. use a clamp on ammeter and compare the readings to past records
[单项选择]Radar makes the most accurate determination of the（）.
A. direction of a target
B. distance to a target
C. size of a target
D. shape of a target
[单项选择]The most accurate account of cargo on board will be found in the（）.
A. Manifest
B. charter party
C. Bill of Lading
D. Portage Bill
[单项选择]The most inefficient method of voltage reduction from the stand point of power loss, is a/an （）
A. capacitor in series with the load
B. inductor in series with the load
C. capacitor and inductor in series with the load
D. resistor in series with the load
[单项选择]Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
A. Crossing the spring lines
B. Slacking all forward running lines while keeping all after running lines taut
C. Doubling up on spring or breast lines
D. Slacking bow and stern lines
[单项选择]The most effective method in removing water from diesel fuel oil is by（）
A. centrifuging the fuel
B. using it in the engine
C. heating the fuel tanks
D. starting the fuel
[单项选择]The most common method of securing a line to a cleat is a（）.
A. half hitch，then round turns
B. round turn，then figure eights
C. figure eight，then round turns
D. figure eight，then half hitches
[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
