Ritchie’s Offshore Services
CRANES
1. When would a sheave become unsafe for use?
A. Excessive wear in a groove
B. Cracks or damage to flange
C. Worn sheave pins
D. Damage to cheek plate
2. What effect can blocking have on your crane and equipment?
A. Snap hoist rope
B. Damage main boom sheave
C. Cause load to drop
3. When the maximum number of turns is wound round the drum, how far must
the flange of the drum extend above the outer layer of the rope?
A. At least 2 rope diameters
B. At least 3 rope diameters
C. At least 4 rope diameters
4. When the hook block is at its lowest point, what is the minimum amount of full
turns of wire rope that must remain on the hoist drum?
A. 2
B. 3
C. 1
5. How can the lifting capacity of a hook block be identified?
A. It should be stamped or marked on the hook block
B. Will be marked on load charts
C. Block and crane is a matched pair
6. What safety device should be fitted (where applicable) to a hook block to
prevent slings from dislodging?
A. A safety catch on the mouth of the hook
B. Mouse the hook
C. Does not require any safety catch
7. When lifting a heavy load what precautions would you take to work within a
given radius?
A. Reduce the operating angle to allow for boom deflection
B. Extend operating radius
C. Leave boom length the same
,
,
CRANES
1. When would a sheave become unsafe for use?
A. Excessive wear in a groove
B. Cracks or damage to flange
C. Worn sheave pins
D. Damage to cheek plate
2. What effect can blocking have on your crane and equipment?
A. Snap hoist rope
B. Damage main boom sheave
C. Cause load to drop
3. When the maximum number of turns is wound round the drum, how far must
the flange of the drum extend above the outer layer of the rope?
A. At least 2 rope diameters
B. At least 3 rope diameters
C. At least 4 rope diameters
4. When the hook block is at its lowest point, what is the minimum amount of full
turns of wire rope that must remain on the hoist drum?
A. 2
B. 3
C. 1
5. How can the lifting capacity of a hook block be identified?
A. It should be stamped or marked on the hook block
B. Will be marked on load charts
C. Block and crane is a matched pair
6. What safety device should be fitted (where applicable) to a hook block to
prevent slings from dislodging?
A. A safety catch on the mouth of the hook
B. Mouse the hook
C. Does not require any safety catch
7. When lifting a heavy load what precautions would you take to work within a
given radius?
A. Reduce the operating angle to allow for boom deflection
B. Extend operating radius
C. Leave boom length the same
,
,
