ANSWERS 100% ACCURATE
When making a multiple crane lift, it is important for the operator to understand
that: - ANSWER - The weight may increase if the other crane lands the load
If a crane is not set-up level and the operator swings a load from the high side to
the low side, the load radius will: - ANSWER - Increase
Most crane manufacturers reduce load capacity for duty-cycle operations because: -
ANSWER - Side loading forces may occur
On who's recommendations should a preventative maintenance program be set-up?
- ANSWER - Crane manufacturer
What is the standard rope used on most cranes? - ANSWER - Right regular lay
The proper way to calibrate a boom angle indicator is: - ANSWER - Using a level,
raise the boom to horizontal and set the indicator at 0 degree.
The red area of an instrument gauge means: - ANSWER - A dangerous condition
exists
The best way to keep people from being injured from the counterweight of the crane
is to: - ANSWER - Fence or barricade the swing area of the crane
Only approved attachments or extra counterweights made by the manufacturer
should be placed on the rear of the crane because: - ANSWER - They could cause a
backward stability problem
What is the first thing an operator should do before going under a low pipe rack? -
ANSWER - Post a signalperson to check clearance
, When working on outriggers, the only time they should be less than fully extended
is when: - ANSWER - There is a load chart for this operation
When using load/capacity charts, what does the term 'A jib angle to ground' refer
to? - ANSWER - Main boom angle minus the jibs offset
A truck crane, with outriggers properly set, is rated at what percentage of its tipping
capacity? - ANSWER - 85%
On a truck crane with the outriggers extended and set, and tires touching the
ground, the operator should refer to what load chart? - ANSWER - On rubber chart
When lifting loads from the water, the operator should be aware that: - ANSWER -
The load will increase when you pick the load from the water
What is require to be on a Hydraulic Crane in order for it to lift a man basket? -
ANSWER - Boom length indicator
When working on rubber, cranes are rated at what percentage of tipping? - ANSWER
- 75%
When using cable or nylon spreaders, it is important to remember: - ANSWER - The
lower the spreader angle the greater the tension
Backward stability of a crane is tested with: - ANSWER - Basic boom at maximum
angle with maximum load
If not listed in the load/capacity charts for a hydraulic crane, and you are in between
boom lengths, you should: - ANSWER - Use the next longer length or shorter with
less capacity
When a spinning load presents a danger, the operator should: - ANSWER - Use a
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