Deck Machinery Quiz

What is the primary function of hydraulic systems in deck machinery?

• To control the temperature of machinery

• To provide electrical power

• To store fuel for engines

• To distribute power and obtain it from a constant speed drive

Which component is NOT essential for a hydraulic circuit?

• Hydraulic fluid

• Pump

• Motor or cylinder actuator

• Electrical generator

What is a common disadvantage of using water as a hydraulic fluid?

• It is inexpensive

• It is a good lubricant

• It has a high boiling point

• It promotes rusting and corrosion

What type of pump provides variable delivery at a given speed?

• Variable delivery pump

• Centrifugal pump

• Fixed delivery pump

• Gear pump

What is the purpose of a slipping clutch in windlass systems?

• To control the hydraulic fluid temperature

• To enhance lubrication

• To avoid transmission of inertia during shock loading

• To increase the speed of the motor

What is the typical speed range for anchor windlass cable during operation?

• 10-12 m/s

• 15-20 m/s

• 5-7 m/s

• 1-3 m/s

Which type of hydraulic fluid is preferred for systems using rotating pumps?

• Mineral oils

• Synthetic oils

• Water

• Emulsions

What is the main advantage of using a ring main system in hydraulic installations?

• It reduces the number of pumps needed

• It simplifies maintenance procedures

• It increases the pressure in the system

• It allows for simultaneous operation of multiple auxiliaries

What is the primary role of mooring winches?

• To tension the mooring wire

• To manage cargo loading

• To control the ship's speed

• To operate the hydraulic system

What is a common feature of automatic mooring winches?

• They require constant manual control

• They can only operate at one tension level

• They incorporate control features for tension management

• They are not suitable for large vessels