Level 2) with complete Solutions
a) What determines the minimum distances that any part of plant
and machinery has to be kept from over head electricity lines
and
b) Explain why a distance should be kept. Correct Answers a)
The voltage of the electricity line and type of support
(metal/wooden poles).
b) High voltage electricity can arc across large gaps in certain
distances.
a) What is the purpose of a method statement and
b) What is required of the operator? Correct Answers a) It is a
document that gives specific instructions on how to safely
perform a work related tast.
b) To comply with the method statement.
a) Why should the slewing direction be to the left whereever
possible and
b) Explain why. Correct Answers a) The operator normally has
clearer view.
b) The right side is obscured by the boom.
Accessories must only be attached to manufactures' approved
lifting points.
Explain three possible consequences if the recommendations are
not followed. Correct Answers 1: Failure or damage can occur
to the machine, accessory or load.
2: The accessory can detach from the machine.
3: The regulations have not been complied with.
,According to legislation, when are check valves and a rated
capacity or load moment indicator required? Correct Answers
When lifting is 1 tonne and above.
Apart from the operator, who else may need to use the machine's
operator's manual? Correct Answers Maintenance staff,
supervisors, fitters and transporter drivers.
Before leaving the cab for a rest break, after parking and
switching off the machine, what final action must be carried
out? Correct Answers The machine must be isolated to prevent
unauthorised individuals from starting/moving/operating the
machine.
Before lowering into or moving a drag box into a trench, what
trench-related checks must br made? Correct Answers That all
workers are out and clear of the trench.
Before manually changing any bucket:
a) Where should the bucket be positioned (in relation to the
ground) before removing the final pin and
b) Explain why? Correct Answers a) Resting on the ground so
unable to fall.
b) It could strike or trap any part of the body.
Cable avoidance tools (CATS) can detect a variety of buried
services. What type of material do they have limitations in
locating? Correct Answers Plastic (piping).
, Describe a physical method of checking that a bucket is fully
secured to the quick-hitch coupler prior to work. Correct
Answers Place the bucket ok the ground lightly and try to
unhook the coupler from the bucket through the machine.
Describe two actions to be taken for an open trench at the end of
a working day. Correct Answers 1: Barriers.
and
2: Warning signs.
Indicating an open trench.
During work, the engine starts to overheat. Explain the danger if
someone tries to remove the radiator or expansion tank cap.
Correct Answers Removing the radiator tank cap will cause the
hot liquid inside to be released under pressure and could cause
burns.
Explain all visual checks that must be carried out on all types of
quick-hitch bucket attaching systems before use. Correct
Answers No visible damage to the coupler, attachments, hoses,
and other components. That all components available are fitted
correctly. Locking pins in correct holes.
Explain the purpose of a lift plan. Correct Answers Details how
the lifting operation must be carried out, and what equipment
and resources are required.
Give four reasons that may cause the machine to tip over-
forwards and/or sideways. Correct Answers 1: Working on
slopes.
2: Soft ground.