Certified Mobile Crane Operator
Prep Test Questions and Answers
100% Correct
Where must the operator's manual be kept during crane operations? - ANSWER -
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? - ANSWER - 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? - ANSWER - working over the rear
what hand signal must always be obeyed? - ANSWER - Stop
When removing pins or bolts from a boom, assembly, workers shall remain? -
ANSWER - out from under the boom
when may a crane be overloaded? - ANSWER - Never
what is the purpose of a boom length indicator? - ANSWER - to provide the actual
boom length at the time of use.
when can the operator leave the crane? - ANSWER - after securing the crane
when can a crane be side loaded - ANSWER - with a freely suspened load
the deflection of a boom will cause the load to? - ANSWER - increase the radius
, what are the broken wire removal requirements for rotation resistant wire rope? -
ANSWER - 2 broken wires in 6 diameters or 4 in 30 diameters
how should wire rope be inspected during a frequent or shift inspection? - ANSWER -
visually
what is the object of rope lubrication? - ANSWER - prevent corrosion and reduce
internal friction (a and b)
which inspection has a competent person making records of the inspection? -
ANSWER - Month
when should tag lines be used? - ANSWER - when the rotation of the suspended load
becomes hazardous
what shall be in the operator's cab during crane operations? - ANSWER - load charts
which of the following is considered duty-cycle work? - ANSWER - clamshell digging.
when doing the duty cycle work, most manufactures require the crane's capacity to
be reduced by? - ANSWER - 20%
which components are not parts of the boom? - ANSWER - Heel pins
the boom angle on a lattice boom crane, is the angle between? - ANSWER - The
ground and the centerline of the boom, between the sheaves and the heel pins.
Three short audible signals means? - ANSWER - Back-up
According to ANSI B30.5, hand signal chart shall be posted where? - ANSWER - On
the job site
a signal person shall be? - ANSWER - A designated person, tested and qualified
Prep Test Questions and Answers
100% Correct
Where must the operator's manual be kept during crane operations? - ANSWER -
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? - ANSWER - 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? - ANSWER - working over the rear
what hand signal must always be obeyed? - ANSWER - Stop
When removing pins or bolts from a boom, assembly, workers shall remain? -
ANSWER - out from under the boom
when may a crane be overloaded? - ANSWER - Never
what is the purpose of a boom length indicator? - ANSWER - to provide the actual
boom length at the time of use.
when can the operator leave the crane? - ANSWER - after securing the crane
when can a crane be side loaded - ANSWER - with a freely suspened load
the deflection of a boom will cause the load to? - ANSWER - increase the radius
, what are the broken wire removal requirements for rotation resistant wire rope? -
ANSWER - 2 broken wires in 6 diameters or 4 in 30 diameters
how should wire rope be inspected during a frequent or shift inspection? - ANSWER -
visually
what is the object of rope lubrication? - ANSWER - prevent corrosion and reduce
internal friction (a and b)
which inspection has a competent person making records of the inspection? -
ANSWER - Month
when should tag lines be used? - ANSWER - when the rotation of the suspended load
becomes hazardous
what shall be in the operator's cab during crane operations? - ANSWER - load charts
which of the following is considered duty-cycle work? - ANSWER - clamshell digging.
when doing the duty cycle work, most manufactures require the crane's capacity to
be reduced by? - ANSWER - 20%
which components are not parts of the boom? - ANSWER - Heel pins
the boom angle on a lattice boom crane, is the angle between? - ANSWER - The
ground and the centerline of the boom, between the sheaves and the heel pins.
Three short audible signals means? - ANSWER - Back-up
According to ANSI B30.5, hand signal chart shall be posted where? - ANSWER - On
the job site
a signal person shall be? - ANSWER - A designated person, tested and qualified
