CERTIFIED MOBILE CRANE
OPERATOR PREP TEST EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
Where must the operator's manual be kept during crane operations? - ANS The operator's
manual should always be kept in the cab
according to ASME B30.5, what are the minimal requirements to meet the crane operator
qualifications? - ANS Physical, Written test, Practical Test
which will have the greatest effect to the fulcrum of a crawler crane and have a major impact on
capacity? - ANS working over the rear
what hand signal must always be obeyed? - ANS Stop
When removing pins or bolts from a boom, assembly, workers shall remain? - ANS out from
under the boom
when may a crane be overloaded? - ANS Never
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
,what is the purpose of a boom length indicator? - ANS to provide the actual boom length at
the time of use.
when can the operator leave the crane? - ANS after securing the crane
when can a crane be side loaded - ANS with a freely suspened load
the deflection of a boom will cause the load to? - ANS increase the radius
which inspection has a competent person making records of the inspection? - ANS Month
when should tag lines be used? - ANS when the rotation of the suspended load becomes
hazardous
what shall be in the operator's cab during crane operations? - ANS load charts
which of the following is considered duty-cycle work? - ANS clamshell digging.
when doing the duty cycle work, most manufactures require the crane's capacity to be reduced
by? - ANS 20%
which components are not parts of the boom? - ANS Heel pins
the boom angle on a lattice boom crane, is the angle between? - ANS The ground and the
centerline of the boom, between the sheaves and the heel pins.
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, Three short audible signals means? - ANS Back-up
According to ANSI B30.5, hand signal chart shall be posted where? - ANS On the job site
a signal person shall be? - ANS A designated person, tested and qualified
an anti-two-block device can be used? - ANS To test the LMI
Cranes should be load tested when? - ANS After modifications
upon completion of assembly of the crane, what must be done? - ANS an inspection to
ensure that manufacturer specifications are met
during crane assembly, the counterweight should be installed when? - ANS before raising the
boom
a long boom crane at a short radius and out of level by 3 degrees can see a reduction in capacity
by as much as? - ANS 50%
crane stability is based on? - ANS lever principle
what is the OSHA standard for cranes in construction industry - ANS 29 CFR 1926.Subpart CC
What type of test does a crane inspector have to pass? - ANS Written test
3 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
OPERATOR PREP TEST EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
Where must the operator's manual be kept during crane operations? - ANS The operator's
manual should always be kept in the cab
according to ASME B30.5, what are the minimal requirements to meet the crane operator
qualifications? - ANS Physical, Written test, Practical Test
which will have the greatest effect to the fulcrum of a crawler crane and have a major impact on
capacity? - ANS working over the rear
what hand signal must always be obeyed? - ANS Stop
When removing pins or bolts from a boom, assembly, workers shall remain? - ANS out from
under the boom
when may a crane be overloaded? - ANS Never
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
,what is the purpose of a boom length indicator? - ANS to provide the actual boom length at
the time of use.
when can the operator leave the crane? - ANS after securing the crane
when can a crane be side loaded - ANS with a freely suspened load
the deflection of a boom will cause the load to? - ANS increase the radius
which inspection has a competent person making records of the inspection? - ANS Month
when should tag lines be used? - ANS when the rotation of the suspended load becomes
hazardous
what shall be in the operator's cab during crane operations? - ANS load charts
which of the following is considered duty-cycle work? - ANS clamshell digging.
when doing the duty cycle work, most manufactures require the crane's capacity to be reduced
by? - ANS 20%
which components are not parts of the boom? - ANS Heel pins
the boom angle on a lattice boom crane, is the angle between? - ANS The ground and the
centerline of the boom, between the sheaves and the heel pins.
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, Three short audible signals means? - ANS Back-up
According to ANSI B30.5, hand signal chart shall be posted where? - ANS On the job site
a signal person shall be? - ANS A designated person, tested and qualified
an anti-two-block device can be used? - ANS To test the LMI
Cranes should be load tested when? - ANS After modifications
upon completion of assembly of the crane, what must be done? - ANS an inspection to
ensure that manufacturer specifications are met
during crane assembly, the counterweight should be installed when? - ANS before raising the
boom
a long boom crane at a short radius and out of level by 3 degrees can see a reduction in capacity
by as much as? - ANS 50%
crane stability is based on? - ANS lever principle
what is the OSHA standard for cranes in construction industry - ANS 29 CFR 1926.Subpart CC
What type of test does a crane inspector have to pass? - ANS Written test
3 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
