Safety Procedures for Crane Operations

When temporarily not using the single boom crane, to ensure safety, what should be noted?

• Lower the boom, secure the locking pins, tighten the winch brake, and turn off the power

• Turn off the power, secure the locking pins, tighten the winch brake

• Secure the locking pins, tighten the winch brake

• Lower the boom, secure the locking pins, tighten the winch brake

When using a double boom crane, what should be noted about the angle formed by the two lifting cables to ensure safety?

• It should not exceed 70°

• It should not exceed 80°

• It should not exceed 90°

• It should not exceed 100°

When using a double boom crane, what should be noted?

• The lifting ropes should be kept short to avoid entanglement with the ship's side

• The lifting slings should always be evenly tightened

• The crane boom should not be swung using the hook

• All of the above

The hatch cover must meet the following requirements:

• Made of good materials, with a sturdy, safe structure, thermal insulation, and easy to open and close

• Made of good materials, with a sturdy, safe structure, easy to open and close, and watertight

• Made of good materials, with a sturdy, safe structure, easy to open and close, and insulated

• All of the above

During the process of opening the mechanical hatch cover, to ensure safety, the following should be noted:

• Do not stand on the hatch cover, do not place any objects on the hatch cover, ensure the track on the hatch rim is clear of obstructions

• Do not stand near the hatch cover while it is being opened

• The hatch cover must be kept clean

• All of the above

When the ship is at sea, the hatch cover and the securing devices must be checked:

• Only when encountering bad weather

• Regularly

• Only when damage occurs

• After leaving port and before reaching the next port

The crew members performing hatch opening duties must:

• Have been trained to ensure they are capable of performing the task and be supervised by the deck officer

• Be certified to perform the task

• Be experienced crew members

• Be the person required by the cargo owner

When closing a flat hatch cover, to ensure safety, the following should be noted:

• The cover must be placed exactly according to the marked position to avoid confusion

• Check the track on the hatch rim to ensure there are no obstructions

• Do not close or open when the trim is large

• All of the above

Before opening a flat hatch cover, the following must be ensured:

• No one is inside the hold

• The area for storing the hatch covers on deck is clear

• The covers on the deck are stacked in order and secured

• All of the above

When lifting a flat hatch cover, to ensure safety, the angle between the lifting cables at the hook point must ensure:

• It should not exceed 130°

• It should not exceed 120°

• It should not exceed 110°

• It should not exceed 100°