
Bow Thruster Effectiveness Quiz
Quiz
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Other
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University
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Practice Problem
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Hard
John Ayroso
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor most significantly reduces bow thruster effectiveness during forward motion?
Rudder resistance
Increased lateral drift
Pressure field at the bow
Hull deformation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When backing a ship in a narrow channel, what best ensures positional control of the bow?
Kick ahead with hard rudder
Apply full port rudder
Use bow thruster aggressively
Shift pivot point forward
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the rudder become more effective than the bow thruster above 4 knots?
Thruster output increases
Lateral water pressure decreases
Thruster loses turning moment
Rudder benefits from water flow
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In lateral movement using astern power, which condition most often causes unexpected port drift?
Full rudder to starboard
Excessive astern thrust
Bow thruster imbalance
Combined thrust and transverse force
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes a vessel to continue drifting after the thruster is stopped?
Shallow water effect
Kinetic energy
List angle
Propeller cavitation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which maneuver is least affected by transverse thrust?
Kicking ahead with rudder
Stopping test
Thruster-only lateral shift
Astern power with bow thruster
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are older bow thrusters more prone to failure?
Hull stress
High RPM
Obsolete components
Low maintenance cost
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