Quiz on Marpow Propeller & Shafting

What principle does a ship propeller operate on?

• Pascal's principle

• Archimedes' principle

• Newton's first law

• Bernoulli's principle

Which material is commonly used for making marine propellers?

• Wood

• Aluminium alloy

• Plastic

• Copper

What is the main advantage of a 4 blade propeller?

• Higher speed performance

• Better low-speed handling

• Less weight

• Lower manufacturing cost

What type of propeller allows for pitch adjustment during operation?

• Standard Pitch Propeller

• Variable Pitch Propeller

• Controllable Pitch Propeller

• Fixed Pitch Propeller

Which type of propeller is known for minimal vibration?

• 2 blade propeller

• 3 blade propeller

• 4 blade propeller

• 5 blade propeller

What is the primary function of a propeller?

• To steer the ship

• To propel the ship

• To generate electricity

• To anchor the ship

Which type of propeller is typically more expensive?

• 3 blade propeller

• 4 blade propeller

• 5 blade propeller

• Fixed Pitch Propeller

What is the main disadvantage of a Fixed Pitch Propeller?

• High manufacturing cost

• Limited maneuverability

• Poor reliability

• Complex installation

What is the purpose of the thrust from a propeller?

• To reduce drag

• To create a pressure difference

• To generate heat

• To stabilize the ship

Which type of propeller is not commonly used for merchant ships due to strength issues?

• 3 blade propeller

• 4 blade propeller

• 5 blade propeller

• 2 blade propeller