MOBILE CRANE SAFETY EXAM
QUESTIONS AND DETAILED ANSWERS.
EXPERT VERIFIED FOR GUARANTEED
PASS.
Unless the manufacturers state otherwise, truck cranes generally have no lifting capacity over
which area ? - ANS The front
Working radius is defined as the distance from the : - ANS 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 : - ANS Are based on the
stability of the crane
Rough terrain crane capacities are generally greater over the : - ANS Front
According to federal requirements, under what conditions is it ok for a person to ride the
headache ball ? - ANS It is never OK
A crane which has been idle for a period of less than three months must be given an inspection
conforming to the requirements of a : - ANS Frequent inspection before use
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, A crane which has been idle for a period of more than three months must be given an
inspection conforming to the requirements of a : - ANS Periodic Inspection before use
There are two types of wire ropes : - ANS Rotation Resistant and Non-Rotation resistant wire
rope
There are two more classifications of these ropes : - ANS Running and Standing Ropes
Ropes that run over sheaves or on drums, e.g. hoist ropes or boom hoist - ANS Running Rope
Ropes that do not move e.g. pendant lines - ANS Standing Rope
Non-rotating rope or non-spin. - ANS Rotation Resistant
What is the Safety Factor for the Rotation Resistant wire Rope. - ANS 5:1 (unless lifting
personnel 10:1 )
When do you Remove Rotation Resistant wire rope from service. - ANS 1 broken wire in core
or 2 broken wire in 6 diameters or 4 broken wire in 30 diameters.
What is the Safety Factor for Non-Rotation resistant. - ANS 3.5:1 (unless lifting personnel 7:1
)
when do you Remove Non-Rotational wire rope from service. - ANS 1 broken wire in the core
or 3 broken wire in on strand in 1 lay, or 6 randomly distributed broken wires in 1 lay.
When do you Remove Standing Rope from service. - ANS 2 broken wires at the end
connection or 3 or more away from the end connection.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS AND DETAILED ANSWERS.
EXPERT VERIFIED FOR GUARANTEED
PASS.
Unless the manufacturers state otherwise, truck cranes generally have no lifting capacity over
which area ? - ANS The front
Working radius is defined as the distance from the : - ANS 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 : - ANS Are based on the
stability of the crane
Rough terrain crane capacities are generally greater over the : - ANS Front
According to federal requirements, under what conditions is it ok for a person to ride the
headache ball ? - ANS It is never OK
A crane which has been idle for a period of less than three months must be given an inspection
conforming to the requirements of a : - ANS Frequent inspection before use
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, A crane which has been idle for a period of more than three months must be given an
inspection conforming to the requirements of a : - ANS Periodic Inspection before use
There are two types of wire ropes : - ANS Rotation Resistant and Non-Rotation resistant wire
rope
There are two more classifications of these ropes : - ANS Running and Standing Ropes
Ropes that run over sheaves or on drums, e.g. hoist ropes or boom hoist - ANS Running Rope
Ropes that do not move e.g. pendant lines - ANS Standing Rope
Non-rotating rope or non-spin. - ANS Rotation Resistant
What is the Safety Factor for the Rotation Resistant wire Rope. - ANS 5:1 (unless lifting
personnel 10:1 )
When do you Remove Rotation Resistant wire rope from service. - ANS 1 broken wire in core
or 2 broken wire in 6 diameters or 4 broken wire in 30 diameters.
What is the Safety Factor for Non-Rotation resistant. - ANS 3.5:1 (unless lifting personnel 7:1
)
when do you Remove Non-Rotational wire rope from service. - ANS 1 broken wire in the core
or 3 broken wire in on strand in 1 lay, or 6 randomly distributed broken wires in 1 lay.
When do you Remove Standing Rope from service. - ANS 2 broken wires at the end
connection or 3 or more away from the end connection.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
