Cargo Handling

Question 1

____ consist of one or more sheaves fitted in a wood or metal frame.

Answer 1

Blocks

Question 2

Used to fairlead a line or wire rope around obstructions.

Answer 2

Blocks

Question 3

Two different types of blocks are…

Answer 3

wood metal

Question 4

Parts of the block consist of:

Answer 4

Frame, sheave, pin, strap, keeper

Question 5

Always use a wood block with…

Answer 5

line

Question 6

To determine the minimum size of a wood block need: multiply the size of line by …

Answer 6

3

Question 7

Metal blocks are always used when using ___ ___, and may be used with line.

Answer 7

wire rope

Question 8

To determine the minimum size of metal block needed; multiply the size of the wire rope diameter by …

Answer 8

20

Question 9

A snatch block is fitted with a hinge on the strap so the line may be …

Answer 9

placed in the block when the bitter end is not available.

Question 10

To determine the size of a block measure the…

Answer 10

length of the frame

Question 11

The frame is also referred to as the…

Answer 11

cheek

Question 12

A tackle is …

Answer 12

a system of lines or wire rope used to lift or move heavy loads.

Question 13

The parts of a tackle consist of: (5)

Answer 13

Standing block: attached to a permanent support. Running block: attached to the load (thing being moved) Standing part: part of line attached to the standing block or permanent support. Hauling part: part of line to be heaved. Falls: part of the line supporting the weight of the load (thing being moved)

Question 14

Mechanical advantage is determined by…

Answer 14

counting the number of parts of the falls at the movable (running) block.

Question 15

A single sheave standing block fixed to a support with a line passing over the sheave.

Answer 15

Single whip 1:1

Question 16

A single sheave running block where the running block is free to move. One end of the line is secured to the support with the weight attached to the block.

Answer 16

Runner 2:1

Question 17

A single sheave standing block and a single sheave running block.

Answer 17

Gun tackle 2:1

Question 18

A double sheave standing block and a single sheave running block

Answer 18

Luff tackle (Jigger) 3:1

Question 19

A double sheave standing block and a double sheave running block.

Answer 19

Twofold purchase 4:1

Question 20

A treble (triple) sheave standing block and a double sheave running block.

Answer 20

Doubleluff tackle 5:1

Question 21

A treble standing block and a treble running block.

Answer 21

Threefold purchase 6:1`

Question 22

Shackles are devices…

Answer 22

used to provide connections for attachments.

Question 23

Shackle are marked in raised lettering with (3)

Answer 23

• Manufacturer’s Name - SWL - Size

Question 24

The are three (3) sub-types of shackles:

Answer 24

• Screw Pin - Safety - Round Pin

Question 25

The Round Pin Shackle is...

Answer 25

designed so the pin may be removed quickly.

Question 26

Are often used in place of shackles to save time.

Answer 26

Hooks

Question 27

Fitted with a safety latch to prevent hook from coming free of the load.

Answer 27

Cargo hook

Question 28

Single Swivel hook (def)

Answer 28

has a single swivel to help prevent the wire rope or line from becoming twisted or damaged.

Question 29

Primarily used on board ships wit double arm davits.

Answer 29

Raymond Releasing Hook

Question 30

Primarily used on board ships with single arm davits. This hook is designed to permit quick engagement and secure locking during hoisting while still allowing quick release during launching.

Answer 30

Quick Release Hook

Question 31

Used on block and tackle attachment points

Answer 31

Side/ front hooks

Question 32

Used to keep a strap or sling from escaping off of hooks.

Answer 32

Mousing

Question 33

(P) Parts of a block: strap, frame, pin, sheave, keeper.

Answer 33

(P) Parts of a block

Question 34

(P) Parts of a Tackle: Falls, running block, standing block, standing part, hauling part

Answer 34

(P) Parts of a Tackle

Question 35

(P) Types of Tackles: single whip, runner, gun tackle, luff tackle, twofold purchase, triple sheave double luff tackle, threefold purchase

Answer 35

(P) Types of Tackles

Question 36

(P) Types of Shackles: Screw pin shackle, safety shackle, round pin shackle.

Answer 36

(P) Types of Shackles: