更多"When lowering lifeboats in heavy se"的相关试题:
[单项选择]In heavy seas the helmsman should steer the survival craft（）.
A. into the seas
B. broadside to the seas
C. in the same direction as the seas
D. in a series of figure-eights
[单项选择]In heavy seas the helmsman should steer the motor lifeboat（）.
A. into the seas
B. broadside to the seas
C. in the same direction as the seas
D. in a series of figure-eights
[单项选择]In heavy seas you decide to heave to. The lifeboat should be（）.
A. brought to a position with the stern into the seas
B. allowed to take its own head
C. brought to lay in the trough
D. brought bow into the seas
[单项选择]Heavy fuel oils when spilled are（）.
A. more harmful to sea life than lighter oils
B. easier to clean up than lighter refined oils
C. less harmful to sea life than lighter oils
D. not a real threat to marine life
[单项选择]When the period of beam seas equals the natural rolling period of a vessel，what will most likely occur?（）
A. Excessive pitching
B. Excessive yawing
C. Excessive rolling
D. No change should be evident
[单项选择]When good and steady service conditions have been achieved, the running surfaces of the piston rings and cylinder liner will be（）In addition, the rings will move freely in the grooves and also be well oiled intact, and not unduly worn.
A. hazy light
B. hazy light brown
C. hazy light blue
D. hazy light grey
[单项选择]Before the seas get rough, it is a good safety practice to （）.
A. secure loose gear
B. move quickly about the ship
C. increase lighting
D. shutdown auxiliary equipment
[单项选择]Good seamanship while towing in heavy weather requires all of the following EXCEPT（）.
A. reducing speed to reduce surging on the towline
B. lashing down or stowing all loose gear
C. dogging all hatches and watertight doors
D. streaming all of your towing hawser
[单项选择]When experiencing heavy winds，you should reef sails to（）.
A. bring the sails parallel to the wind
B. reduce sail area exposed to the wind
C. allow the sails to catch more wind
D. remove all tension on the main and jib sheets
[单项选择]
When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil
A. (1) only is correct
B. (2) only is correct
C. both (1) and (2) are correct
D. neither (1) or (2) are correct
[单项选择]When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.
A. the same ratio
B. more chain for each fathom of depth
C. less chain for each fathom of depth
D. two anchors with the same ratio of chain
[单项选择]When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（）
A. increase the starting air pressure
B. use a higher than normal cranking speed
C. increase the fuel injection pressure
D. use a fuel having a lower ignition temperature
[单项选择]When landing a lifeboat through heavy surf with a strong current running parallel to the beach (from right to left when facing from seaward) the recommended procedure is to（）.
A. approach while coming to the left to take advantage of the current
B. drop an anchor outside the surf line，then pay out anchor line over the bow while the seas carry the boat toward the beach
C. approach slow enough so that the boat can be brought around to meet breaking seas on the bow
D. rig a drogue with tripping line over the bow，back ashore with drogue tripped between breakers
[单项选择]When running before a heavy sea，moving weights aft will affect the handling of a vessel by （）.
A. reducing rolling
B. increasing rolling
C. reducing yawing
D. increasing yawing
[单项选择]When the heavy fuel oil is heated to achieve the viscosity of 10-15 cst, may occur.To avoid this, a system is used in most occasions（）
A. boiling and cavitations; low temperature
B. boiling and cavitations; pressurized
C. leaking and boiling; low temperature
D. leaking and boiling; pressurized
[单项选择]When using the ARPA in heavy rain，which action should you take? （）
A. Increase the radar gain to pick up weak echoes through the rain
B. Increase the STC setting to reduce close-in spurious signals
C. Navigate as though the effective range of the radar has been reduced
D. Increase the range of the inner and outer guard rings
[单项选择]When preparing a ship for heavy weather，fuel oil day tanks should be（）.
A. pumped overboard to calm the seas
B. drained to the lower hull to reduce free surfaces
C. filled to ensure that sufficient fuel oil is available during a lengthy emergency
D. partially drained to increase free surfaces in order to reduce motions
[单项选择]When it came to reading, they were as good as blind.（）
A. 来读书时，他们和瞎子一样好。
B. 一拿起书本，他们可都成了睁眼瞎了。
C. 说到读书，他们可都是瞎子。
