更多"When landing a lifeboat through hea"的相关试题:
[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]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 within the entrance, the vessel should（）surf islet.
A. navigate
B. arrive at
C. steer for
D. maneuver for
[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 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 lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.
A. on only the forward falls
B. on only the after falls
C. with a lead of about 45 degrees to the boat
D. from the falls to the main deck of the vessel
[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 inspecting piston rings through the ports of a two-stroke/cycle diesel engine, black areas on the sealing surfaces are the result of （）
A. insufficient lubrication
B. improper piston cooling
C. blow-by
D. overload operation
[单项选择]When the current flow through a copper wire increases, its （）
A. resistance will decrease
B. insulation will bum
C. temperature will increase
D. conductivity will increase
[单项选择]A refrigerant gives up heat when it goes through （）.
A. condenser
B. regurgitate
C. evaporator
D. boil coil
[单项选择]When I came through the customs at the airport, I had to pay（）on a clock I had bought.
A. taxes
B. duty
C. fines
D. fees
[单项选择]（）is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature.
A. MIXING FOG
B. ADVECTION FOG
C. RADIATION FOG
D. ARCTIC SEA SMOKE
[判断题]MATLAB提供了mesh函数和surf函数来绘制三维曲面图。
[单项选择]A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
A. main brace
B. tow span
C. jockey bar
D. None of the above
[单项选择]One engine manufacturer recommends heavy fuel oil should not be heated above 80℃ to 95℃ (176 ℉ TO 203℉) before purificationThis upper limit should be observed to ensure against（）
A. flattening of the bowl neoprene O-rings
B. operation within the explosive rang of the fuel
C. excessive purifier operating pressures
D. excessive oil viscosity
