Solutions
(a) what determines the minimum distances that any part of
plant and machinery has to be kept from overhead electricity
lines and (b) explain why a distance should be kept Correct
Answers (a) the voltage and type of support
(b) reduces arcing
2 boom/jib equipped cranes are working in the same vicinity that
encroach on the operating radius of each. what actions would the
lift plan specify Correct Answers
A 1-tonne webbing sling is attached to a load using a choke
hitch. What is the maximum weight the accessory is allowed to
lift? (Note. The tester may provide a different figure in order to
check understanding) Correct Answers 0.8ton, 20% reduction
a) Name THREE different types of lifting accessories
b) State ONE advantage off each compared to other types of
available lifting accessories Correct Answers 1-
a) Safety hook v C hook
b) Sling can't come out of safety hook
2-
a) Bow shackle v D shackle
b) Bow shackle can lift at angles and D shackle one one point of
lift attachment
3-
a) Nylon sling v Chain sling
b) Chain sling can damage a finished surface, nylon sling won't
, a) What does the date working load (SWL), as stamped on
lifting accessories, indicate?
b) What action should be taken if the SWL is not marked on a
lifting accessory? Correct Answers a) The maximum lifting
capacity in a particular configuration
b) Accessory can't be used
a) What is the purpose of a Method Statement, lift plan
b) what is required of the slinger/signaller? Correct Answers a)
instructions on how to carry out work safely
b) work to the method statement
a) When is a trial lift carried out?
b) Name 4 checks to be made? Correct Answers a) Every time
you do a lift
b) Weight, level, fully supported, sling attached properly
Before being guided by a signaller for a pick and carry duty,
what instruction should be given to the machine operator by the
signaller if they lose sight of each other? Correct Answers Stop
until the signaller is back in sight of the crane operator (line of
sight)
Before guiding and assisting the movement of mobile lifting
equipment that is being repositioned to carry out a new lifting
operation a) What should the marshaller/signaller ensure and b)
With whom? Correct Answers check machine is set up
correctly with operator
During a lift, it is suspected that a lifting accessory exceeded the
rated capacity. What would be the course of action? Correct