OECP EXAM QUESTIONS WITH
100% SOLVED ANSWERS
When is it permissible to work under power lines? - Answer-If the power is shut off and
lines are visibly grounded on site
Radius of contact of a sling softener should be what? - Answer-7 rope diameters or 1
rope lay
What type of shackle is most commonly used to hoist personnel? - Answer-Alloy anchor
type
A man basket should be level within what percent? - Answer-10%
The maximum sling angle in a hook is how much? - Answer-90 degrees
Where must signal charts be posted? - Answer-On or in the vicinity of the crane
What is the minimum distance allowed from a power line over 500kV up to 750kV? -
Answer-35 feet
When calculating rope weight on a Manitowoc, rope length is measured how? - Answer-
Use the crane configuration, with the range diagram and find the tip height to the ground
multiplied by weight per foot of cable
The fleet angle on a smooth drum should not exceed what? - Answer-1.5 degrees
The fleet angle on a grooved drum should not exceed what? - Answer-2 degrees
Why is a block with multiple sheaves used? - Answer-Mechanical advantage
How long shall a man-basket remain suspended for a proof test? - Answer-5 minutes
What must be permanently marked on a man-basket? - Answer-Weight of the empty
platform and its rated capacity
A toe-board on a personnel platform must be at least what? - Answer-4 inches high
A handrail on a personnel platform must be how high? - Answer-42 inches
, If your driving at the speed of light and you turn on your headlights, do they work? -
Answer-No, due to the quantum mechanics of quantum gravity theory (not needed)
The sum of all angles in a rigging triangle (all triangles) are a total how many degrees? -
Answer-180 degrees
A vertical angle should never exceed what? - Answer-60 degrees
What is the sling stress formula? - Answer-Sling length/vertical height=load factor
Load factor times load weight/number of legs
What is the capacity rating of a choker hitch? - Answer-75%
The safe use of slings largely depends on what 4 important factors? - Answer-Size
Hitch
Angle
Sharpness
A horizontal angle of what should never be less than? - Answer-30 degrees
What must be on the tag for alloy steel chain slings? - Answer-Size
Grade
Rated capacity
Reach
What must be on the tag for welded alloy steel chain slings? - Answer-Size
Grade
Rated capacity
Manufacturer's name
When parking a crane for an extended period of time or in the face of extreme weather,
what is a good practice to have? - Answer-Boom down onto lagging and set all dogs
and locks
Sling eyes (loops) should not be opened more than what? - Answer-60 degrees or 1/2
the loops length
What are the four different types of crane signals? - Answer-Hand
Voice
Audible
New
The shaded area on a load chart indicates _______? - Answer-A structural chart
The minimum distance to a power line of unknown voltage is ? - Answer-50'
100% SOLVED ANSWERS
When is it permissible to work under power lines? - Answer-If the power is shut off and
lines are visibly grounded on site
Radius of contact of a sling softener should be what? - Answer-7 rope diameters or 1
rope lay
What type of shackle is most commonly used to hoist personnel? - Answer-Alloy anchor
type
A man basket should be level within what percent? - Answer-10%
The maximum sling angle in a hook is how much? - Answer-90 degrees
Where must signal charts be posted? - Answer-On or in the vicinity of the crane
What is the minimum distance allowed from a power line over 500kV up to 750kV? -
Answer-35 feet
When calculating rope weight on a Manitowoc, rope length is measured how? - Answer-
Use the crane configuration, with the range diagram and find the tip height to the ground
multiplied by weight per foot of cable
The fleet angle on a smooth drum should not exceed what? - Answer-1.5 degrees
The fleet angle on a grooved drum should not exceed what? - Answer-2 degrees
Why is a block with multiple sheaves used? - Answer-Mechanical advantage
How long shall a man-basket remain suspended for a proof test? - Answer-5 minutes
What must be permanently marked on a man-basket? - Answer-Weight of the empty
platform and its rated capacity
A toe-board on a personnel platform must be at least what? - Answer-4 inches high
A handrail on a personnel platform must be how high? - Answer-42 inches
, If your driving at the speed of light and you turn on your headlights, do they work? -
Answer-No, due to the quantum mechanics of quantum gravity theory (not needed)
The sum of all angles in a rigging triangle (all triangles) are a total how many degrees? -
Answer-180 degrees
A vertical angle should never exceed what? - Answer-60 degrees
What is the sling stress formula? - Answer-Sling length/vertical height=load factor
Load factor times load weight/number of legs
What is the capacity rating of a choker hitch? - Answer-75%
The safe use of slings largely depends on what 4 important factors? - Answer-Size
Hitch
Angle
Sharpness
A horizontal angle of what should never be less than? - Answer-30 degrees
What must be on the tag for alloy steel chain slings? - Answer-Size
Grade
Rated capacity
Reach
What must be on the tag for welded alloy steel chain slings? - Answer-Size
Grade
Rated capacity
Manufacturer's name
When parking a crane for an extended period of time or in the face of extreme weather,
what is a good practice to have? - Answer-Boom down onto lagging and set all dogs
and locks
Sling eyes (loops) should not be opened more than what? - Answer-60 degrees or 1/2
the loops length
What are the four different types of crane signals? - Answer-Hand
Voice
Audible
New
The shaded area on a load chart indicates _______? - Answer-A structural chart
The minimum distance to a power line of unknown voltage is ? - Answer-50'
