更多"The guard, fencing or shielding for"的相关试题:
[单项选择]The main moving parts of a diesel engine consist of the （） and the pistons.
A. bedplate, connecting rods
B. crankshaft, the connecting rods
C. frames, crossheads
D. crankshaft, the cylinder
[单项选择]Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to （）.
A. react with insufficient speed droop
B. fail to react to small speed changes
C. have excessive sensitivity to small speed changes
D. remain in the neutral position
[单项选择]A Coast Guard radiotelephone message about an aid to navigation that is off station is preceded by the word（）.
A. PAN-PAN
B. MAYDAY
C. SOS
D. SECURITY
[单项选择]Coast Guard regulations require a shipboard Oil Pollution Emergency Plan to be reviewed（）.
A. annually
B. once every two years
C. once every four years
D. once every five years
[单项选择]Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT（）.
A. minimizing the affects of unintentional flooding
B. fire on board
C. rescuing an individual from the water
D. emergency towing
[单项选择]Coast Guard approved buoyant work vests（）.
A. may be substituted for 10 percent of the required life preservers
B. should be stowed adjacent to lifeboats and emergency stations
C. may be used by boat crews and line handlers during lifeboat drills
D. should be used when carrying out duties near a weather deck's edge
[名词解释]准移动闭塞quasi-moving block
[单项选择]How can the Coast Guard determine that a crew member is “able to understand any order spoken by the officers”?（）
A. Require a demonstration by the officer and the crew member
B. Require a written test
C. Require that an interpreter be provided
D. All of the above
[单项选择]An effective method for moving patients with spinal injuries onto a spine board is known as the（）.
A. pack-strap carry
B. two man extremities carry
C. fireman's drag
D. four man log roll
[单项选择]A moving object will not accelerate or decelerate （）a force is applied to it.
A. whether
B. if
C. unless
D. till
[单项选择]Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?（）
A. signaling that all personnel are clear before lifting or lowering material
B. Examining material for sharp edges or protruding points before handling
C. Closing, tagging, or securing valves that permit entrance of steam, water, or air into a fitting or other equipment
D. Throwing materials from high places to the deck
[单项选择]A stream of water immediately surrounding a moving vessel’s hull，flowing in the same direction as the vessel is known as（）.
A. directional current
B. forward current
C. propeller current
D. wake current
[单项选择]Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
A. Alert the watch officer that a vessel is approaching the preset CPA limit
B. Warn of small targets that are initially detected closer than the outer guard zone
C. Guard against target loss during critical maneuvering situations
D. Sound an alarm for targets first detected within the zone
[单项选择]Moving of an anchor over the sea bottom involuntarily because it is no longer preventing the movement of the vessel defines（）.
A. dredging ( of anchor )
B. dragging ( of anchor )
C. weighing anchor
D. walking out anchor
[单项选择]A current moving across a lock entrance toward the river or toward the dam is called a(n)（）.
A. cutoff
B. outdraft
C. lockwash
D. springpool
[单项选择]MOVING OF AN ANCHOR OVER THE SEA BOTTOM INVOLUNTARILY BECAUSE IT IS NO LONGER PREVENTING THE MOVEMENT OF THE VESSEL defines（）.
A. Dredging (of anchor)
B. Dragging (of anchor)
C. Weighing anchor
D. Walking out anchor
[单项选择]The piston moving up and down keeps the crankshaft （）.
A. to revolve
B. revolved
C. revolving
D. to be revolved
