更多"When the union purchase derrick is "的相关试题:
[单项选择]When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect（）.
A. Both towheads will tend to drift apart，and the overtaking vessel will be slowed down
B. Both towheads will tend to drift together，and the overtaking vessel will be slowed down
C. Both towheads will tend to drift apart，and the overtaken vessel will be slowed down
D. Both towheads will tend to drift together，and the overtaken vessel will be slowed down
[单项选择]When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will indicated?（）
A. Advanced ignition
B. Clogged air intake
C. Leaky exhaust valve
D. High exhaust pressure
[单项选择]Be carefully when you（）the derrick.
A. operate
B. operating
C. operated
D. operates
[单项选择]When one of two vessels（）is required to keep out of the way the other must keep her course and speed.
A. In sight of another
B. Sights the another
C. Not in sight of the other
D. In sight of one another
[单项选择]When using the term limber system one is referring to a（）.
A. Cleaning system
B. Drainage system
C. Strengthening system
D. Weight reduction system
[单项选择]When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
A. The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headings
B. After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustment
C. During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearing
D. After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error
[单项选择]When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.
A. just
B. nearly
C. merely
D. already
[单项选择]One advantage of a flash distilling plant when compared to a submerged tube distiller is（）
A. greater distillate purity through high temperature evaporation
B. cold shocking for scale removal is not required
C. less internal corrosion because of lower brine density
D. less feed-water is required for equal plant capacity
[单项选择]The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a（）.
A. grip joint
B. strap joint
C. thread joint
D. lap joint
[单项选择]When towing astern，one way to reduce yawing of the tow is to（）.
A. trim the tow by the stern
B. trim the tow by the head
C. have the tow on an even keel
D. list the tow on the side it is yawing
[单项选择]When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.
A. a light signal of at least five short and rapid flashes
B. one prolonged，one short，one prolonged，and one short whistle blasts
C. four short whistle blasts
D. two short whistle blasts
[单项选择]When replacing a part with a spare one, we should fill in tile spare parts consume table in time and make a mark in brief for （）
A. the reason of replacing
B. the course of replacing
C. crews who do this work
D. where and when the replacing being done
[单项选择]The damaged derrick（）now.
A. has repaired
B. is being repaired
C. is repaired
D. will be repaired
[单项选择]I suppose that when I come back from sea in one year’s time all these old houses（）down.
A. will have been pulled
B. will be pulling
C. will have pulled
D. will be pulled
[单项选择]（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
A. As many as
B. So many as
C. As much as
D. As more as
[单项选择]A warp end may be fitted for operating the derrick topping wire which adjusts the derrick （）.
A. length
B. slack
C. height
D. rotation direction
[单项选择]（） may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).
A. A capstan
B. A hold
C. A warp end
D. A mooring drum
[单项选择]Our starboard derrick boom of hatch No.4 is badly cracked（）that it has become entirely useless.
A. at its goose neck to such a extent
B. at it's goose neck to such an extent
C. at it's goose neck for such a extent
D. at its goose neck to such an extent
