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Which of the following items are used for heavy rigging? ---------CORRECT
ANSWER-----------------slings, shackles, and spreader beam
If the jacket of a synthetic round sling is damaged, that sling should be: ---------
CORRECT ANSWER-----------------Removed from service immediately
Which of the following is NOT a factor when making sub merged lifts? ---------
CORRECT ANSWER-----------------Water temperature
When a tugger is mounted where the operator can NOT see the load, the signal
person MUST use: ---------CORRECT ANSWER-----------------signals used for cranes
Who can design a personnel platform? ---------CORRECT ANSWER-----------------A
qualified personnel
,A one-inch, 3-leg bridle wire rope sling, rigged at a 45° angle, is good for 18 tons.
The addition of a fourth leg will increase your capacity by: ---------CORRECT
ANSWER-----------------0 lbs
After any structural repair or modification, a personnel lifting platform shall be
tested to what percentage of the platform rating? ---------CORRECT ANSWER--------
---------150%
All of the following statements about crane contact with power lines are TRUE
EXCEPT: ---------CORRECT ANSWER-----------------The operator should leave the cab
as quickly as possible
Loads int introduced in+o the machine or its components due to accelerating or
decelerating force is called ---------CORRECT ANSWER-----------------Dynamic loading
Using the sling Chart provided, what is the rated capacity if 1/2 inch sling in a
basket hitch with sling lugs 90 degrees? ---------CORRECT ANSWER-----------------
6,200 lbs
When lifting 100,000 pounds, the main load block must be reaved with how many
parts of line? ---------CORRECT ANSWER-----------------4
, What standard hand signal is being communicated in the illustration ---------
CORRECT ANSWER-----------------Travel(one track)
What standard hand signal is being communicated In the illustration? ---------
CORRECT ANSWER-----------------use whip line
The formula for determining stress on a snatch block performing a vertical lift is:
line pull x block factor = block load. What must be done to calculate formula? -----
----CORRECT ANSWER-----------------Multiply the load weight by the coefficient of
friction to determine line pull,and then use the standard formula
If both fists are placed in front of your body with your thumbs pointed
outward,the crane operator should: ---------CORRECT ANSWER-----------------Extend
the boom section
What is the MAXIMUM Percent of the rated capacity of a crane that can be used
to lift personnel ---------CORRECT ANSWER-----------------50%