Section 2

Question 1

Describe the content, use and inspection regime of cargo gears.

Answer 1

1. Initial testing - when fitted.
2. Following the repairs of any stress-
   bearing parts.
3. 6 monthly inspections running gear.
4. Annual thorough examination.
5. 5 yearly testing and examinations.

Question 2

Describe the condition when SWL can be exceeded. (M.O. 32)

Answer 2

a) Under test.
b) A single sheave is rigged as a double whip / gun tackle so that the load is suspended from its head fitting. Load not > 2x the SWL.
c) It is a crane/ derrick that meets all of the following:
- occasional lifts
- approved by Master or Owners
- x exceed proof load
- load is inspected by a competent
person and agrees the ops can
proceed.

Question 3

What are the proof loads for different lifting appliances?

Answer 3

Question 4

The formula to calculate blocks, tackles and purchases. (Effort and Efficiency calculations.)

Answer 4

Effort = W + n x fritional % x W / V.R
Efficiency = M.A / V.R x 100%

Question 5

When to discard wire rope under M.O. 32?

Answer 5

A wire rope must have at least 114 constituent parts, relating directly to a 6/19 wire rope as its minimum standard. The total no. of visible broken constituent wires in a length of rope equal to 10x its diameter must not exceed 5% of the wires constituting the rope.

Question 6

Types and No. Sheaves

Answer 6