What action does a signal person intend the operator to perform if he extends his arm at shoulders height makes a fist with his hand and sticks his thumb up
Boom up
Within what percentage of level does it telescopic boom crane have to be for the gross ratings in the low charge remain valid
1%
The load line of the crane you’re operating comes into contact with an energize powerline there’s no sign of any other danger such as fire in such a situation you should
Stay in the cabin to the lines are D energized
You’re setting up your crane in a confined area and you cannot fully extend your fourth out rigger your crane does not have a load chart for intermediate extension working. In such a situation you should use the capacities in the:
On rubber load chart
According to B 30.5 Mobile crane standard, how many randomly distributed broken wires in rotation resistant rope is cause for replacement of the rope
Two broken wires in six rock diameters
Unless the manufacturer states otherwise the net capacity of a crane picking on the main boom is the capacity listed in the load chart;
Minus the weight of the rigging and all attachments
Unless the operator takes account of boom deflection when lifted off the ground a properly rigged load may-
Swing out away from the crane
Which is the most common cause of death to crane operators
Crane turn over
When preparing to set up a mobile crane for operation which one of the following steps is not needed to be done by the operator
Check lunchroom location
Before making a lift on outriggers, and operator should always:
Extend the out rigors completely and be sure the tires are clear of the ground and a stabilizer pads are firm on the ground
Unless the manufacturer states otherwise truck cranes generally have no lifting capacity over which area
The front
Working radius is defined as the distance from the_
Center of rotation of the crane to the center of gravity of the load
If a bold line is shown on a load chart the capacities below the line_
Are based on stability of the crane
Rough terrain crane capacities are generally greater over the
Front
According to federal requirements, under what conditions is it OK for a person to ride the headache ball
It is never OK
On duty cycle operations such as skipping concrete, most manufacturers require a crane’s load shark capacity to be reduced by
20%
Boom length is measured from the
Boom hinge pins to the center of the boom tips Sheave
Using the preferred method of Installing wire rope from a real onto a hoist drum, the rope runs from the
Top of the real to the top of the drum
Truck crane capacities are usually greater over the
Rear
A truck crane is set up on outriggers. The part of the world shark governed by stability is based on what percentage
85%
When making a deduction for Stowe gym or extension, what type of deduction would you use
Deduction weight
What is the minimum clearance distance one working around powerlines of 600 KV
35 feet
Prior to moving a crane on to the job site the operator shit first determine the condition of the
Access road
OSHA permits hoisting of personnel when
There is no less hazardous or practical way