單項(xiàng)選擇題（）is electricity that is flowing where it’s not supposed to through water, fittings on your boat, wet wood, damp surfaces, etc.

A.Stray current
B.Rated current
C.Starting current
D.Earth current


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1.單項(xiàng)選擇題During steering gear test should be moved through its full travel in both directions（）

A.pump
B.the cylinder
C.the hunting gear
D.the rudder

2.單項(xiàng)選擇題The（） of the telemotor is mounted on the steering gear.

A.transmitter
B.receiver
C.pipes
D.charging unit

3.單項(xiàng)選擇題The（）of the telemotor is built the steering wheel console and located on the bridge.

A.transmitter
B.receiver
C.pipes
D.charging unit

4.單項(xiàng)選擇題The （） returns the pump operating rod to mid position as soon as the helmsman stops turning the wheel.

A.hunting gear
B.cut-off level
C.servo-motor
D.swivel block

5.單項(xiàng)選擇題The （） in the steering gear system provides the force.

A.control equipment
B.power unit
C.transmission mechanisms
D.fittings and pipeline