Aux 1 Unit 10 Q8

1 / 10

In a transverse water jet thruster, what role does the motor play?

D) It increases the vessel's speed.

C) It adjusts the angle of the propeller blades.

A) It cools down the water before it is expelled.

B) It powers the impeller, which generates the water flow necessary for thrust.

2 / 10

Which principle of physics primarily governs the operation of a water jet thruster?

D) The law of buoyancy

B) Bernoulli's principle

A) Conservation of energy

C) Newton's third law of motion: for every action, there is an equal and opposite reaction

3 / 10

What is the purpose of the tunnel in a transverse water jet thruster system?

C) To decrease the vessel's draft

A) To house the impeller and nozzle, guiding the flow of water across the vessel to create lateral thrust

D) To store water for ballast

B) To increase the vessel's speed

4 / 10

Why is water expelled at high velocity in a water jet thruster system?

D) To reduce the vessel's weight

C) To increase the vessel's draft

B) To generate a sufficient reactive force that propels the vessel in the opposite direction of the expelled water

A) To cool the vessel's engine

5 / 10

Which of the following is a key advantage of using a transverse water jet thruster in a vessel?

D) It eliminates the need for a rudder.

C) It increases fuel efficiency at cruising speeds.

A) It provides propulsion at high speeds.

B) It allows for precise lateral movement, making docking and maneuvering in tight spaces easier.

6 / 10

What is the primary component used to generate water flow in a transverse water jet thruster?

D) A rudder blade

A) A hydraulic piston

B) An impeller driven by an electric or hydraulic motor

C) A manually operated pump

7 / 10

What role does the nozzle play in the operation of a water jet thruster?

C) It increases the temperature of the water.

A) It reduces the water pressure.

B) It directs the flow of water to create thrust in the desired direction.

D) It filters debris from the water.

8 / 10

Where is the water intake typically located in a transverse water jet thruster system?

C) On the deck of the vessel

D) On the bottom of the vessel

B) On the sides of the vessel

A) At the bow or stern of the vessel

9 / 10

How is thrust generated in a water jet thruster?

C) By increasing the vessel's engine power

A) By rotating the propeller at high speeds

D) By lowering the vessel's draft

B) By using an impeller to draw in water and expel it at high velocity through a nozzle

10 / 10

How is the direction of thrust controlled in a transverse water jet thruster?

A) By changing the speed of the vessel

B) By rotating the entire thruster assembly

D) By adjusting the vessel's rudder

C) By using a nozzle that directs the water flow to either side of the vessel

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