更多"[单选题] If an electric cargo winch is"的相关试题:
[单选题]In the cargo winch,spur reduction gearing transfers the motor drivethe barrel shaft.
A.from
B.to
C.into
D.at
[单选题]Cargo winches are used with various derrick system___scargo handling.
A.arranging for
B.to arrange for
C.arranged for
D.which will arrange for
[单选题] Running an electric winch at slow speed over a long period of time causes ______．
A.the speed to be retarded by the friction brake
B.a load to go downward at full speed
C.the circuit breaker to turn off
D.the resistors to overheat and eventually burn out
[单选题] A survival craft being used to pick up a person who has fallen overboard from a vessel should approach the person ______．
A.at a high rate of speed
B.under oars
C.against the wind
D.with the wind
[单选题] Bonding cables are used during cargo transfer to ______．
A.provide safe electrical power connection to barge equipment
B.keep the vessel from surging excessively
C.prevent an accidental discharge of static electricity
D.secure the cargo hose to a hatch when loading overall
[单选题] Dunnage may be used to protect a cargo from loss or damage by ______．
A.Ship's sweat
B.Inherent vice
C.Tainting
D.Hygroscopic absorption
[单选题] ______ is used for lifting cargo.
A. A mooring winch
B. A windlass
C. A deck crane
D. A lifeboat engine
[单选题] ______ is not usually used in liquid cargo systems．
A.Hydraulic drive systems
B.Electric drive systems
C.Steam drive systems
D.Man-powered drive systems
[单选题] If a hydraulic pump on a winch accidentally stops while hoisting，the load will stay suspended because ______．
A.A check valve will close that prevents reverse circulation
B.A centrifugal counterweight counteracts the force of gravity．
C.The electric pump motor will cut out
D.The control lever will move to the stop position
[单选题] An anchor winch should be equipped with mechanical brakes capable of holding ______．
A.half the breaking strength of the mooring line
B.the full breaking strength of the mooring line
C.the maximum expected tension of the mooring line
D.50% over the working tension of the mooring line
[单选题] What happens to the pulling power of a winch when retrieving wire rope ________．
A.It increases
B.It decreases
C.It remains the same
D.It fluctuates，depending on the gearing system
[单选题] Making cargo plan for appropriate distribution of the cargo on board is ______ duty．
A.A ship's officer's
B.A Tallyman's
C.A port planner's
D.A foreman's
[单选题] Cargo handlers should take the following precautions with the exception of ______ to avoid damage from shifting．
A.Keep the loads as close to the rail or deck as possible
B.If cargo is likely to settle，make provisions to secure it after it has settled
C.Thoroughly secure and shore all cargo so that it cannot move
D.hen stowing cargo，avoid leaving empty paces
[单选题] The terminal stuff tallies the cargo mainly before the ship's ______．
A.Loading
B.Leaving
C.Arriving
D.Sailing
[单选题] The transportation of dangerous cargo in packages is governed by _______ .
A. IBC code
B. BC code
C. IMDG code
D. IGC code
[单选题] Deadweight，which is the cargo carrying capacity of a
vessel in tons，is determined by ______．
A.Loaded displacement minus light displacement．
B.Gross tonnage minus net tonnage
C.Loaded displacement minus net tonnage
D.Light displacement minus the weight of the vessel
[单选题] Records of tests and inspections of a cargo vessel’s fire extinguishing systems shall be ______ on board until the vessel’s certificate of inspection expires.
A. consealed
B. detained
C. contained
D. kept
[单选题] Cargo transfer operations on a tank vessel need NOT be stopped when ______．
A.a tug comes alongside while the tanker is loading grade D and E cargoes
B.a large，fresh oil spill is discovered immediately adjacent to the side of the tanker
C.there is an electrical storm in the vicinity
D.there is a fire on the dock or on a nearby vessel
[单选题] You start a centrifugal cargo pump to discharge cargo．The pump works for a while and then loses suction．This could NOT be caused by ______．
A.Leaking shaft seals
B.Air pockets in the liquid
C.High cargo level in the tanks
D.A leaking suction line
