1
Certified Mobile Crane Operator Prep Test/ Exam
Questions with Correct Verified Answers/ Rated A+
when may a crane be overloaded? - Correct Answer - Never
what is the purpose of a boom length indicator? - Correct Answer - to
provide the actual boom length at the time of use.
when can the operator leave the crane? - Correct Answer - after securing
the crane
when can a crane be side loaded - Correct Answer - with a freely suspened
load
When lifting personnel in man basket, which of the following may be lifted
on the other load line of the crane? - Correct Answer - nothing
what is the only time a person in a man basket does not have to wear a
safety harness? - Correct Answer - over water
when a job site is flooded, before action is taken, who shall be consulted? -
Correct Answer - the controlling entity
Man-baskets are proof tested to what percentage - Correct Answer - 125%
, 2
The eyes of wire rope slings used to support personnel platforms shall be
fabricated with what? - Correct Answer - Thimbles
Man-baskets are covered under which standards - Correct Answer - 29
CFR 1926.1431 and ANSI B30.23
who is responsible for preparing the grounds for the crane? - Correct
Answer - Site supervisor
which way will the crane turn when you push the swing lever? - Correct
Answer - Towards the bottom
what is the most common cause of accidents with mobiles cranes? -
Correct Answer - Improper crane setup
When the crane is overloaded and working above the bold line, what could
happen to the crane - Correct Answer - structural failure
the deflection of a boom will cause the load to? - Correct Answer - increase
the radius
which inspection has a competent person making records of the
inspection? - Correct Answer - Month
when should tag lines be used? - Correct Answer - when the rotation of the
suspended load becomes hazardous
what shall be in the operator's cab during crane operations? - Correct
Answer - load charts
, 3
which of the following is considered duty-cycle work? - Correct Answer -
clamshell digging.
when doing the duty cycle work, most manufactures require the crane's
capacity to be reduced by? - Correct Answer - 20%
which components are not parts of the boom? - Correct Answer - Heel pins
the boom angle on a lattice boom crane, is the angle between? - Correct
Answer - The ground and the centerline of the boom, between the sheaves
and the heel pins.
Three short audible signals means? - Correct Answer - Back-up
According to ANSI B30.5, hand signal chart shall be posted where? -
Correct Answer - On the job site
a signal person shall be? - Correct Answer - A designated person, tested
and qualified
an anti-two-block device can be used? - Correct Answer - To test the LMI
Cranes should be load tested when? - Correct Answer - After modifications
upon completion of assembly of the crane, what must be done? - Correct
Answer - an inspection to ensure that manufacturer specifications are met
Certified Mobile Crane Operator Prep Test/ Exam
Questions with Correct Verified Answers/ Rated A+
when may a crane be overloaded? - Correct Answer - Never
what is the purpose of a boom length indicator? - Correct Answer - to
provide the actual boom length at the time of use.
when can the operator leave the crane? - Correct Answer - after securing
the crane
when can a crane be side loaded - Correct Answer - with a freely suspened
load
When lifting personnel in man basket, which of the following may be lifted
on the other load line of the crane? - Correct Answer - nothing
what is the only time a person in a man basket does not have to wear a
safety harness? - Correct Answer - over water
when a job site is flooded, before action is taken, who shall be consulted? -
Correct Answer - the controlling entity
Man-baskets are proof tested to what percentage - Correct Answer - 125%
, 2
The eyes of wire rope slings used to support personnel platforms shall be
fabricated with what? - Correct Answer - Thimbles
Man-baskets are covered under which standards - Correct Answer - 29
CFR 1926.1431 and ANSI B30.23
who is responsible for preparing the grounds for the crane? - Correct
Answer - Site supervisor
which way will the crane turn when you push the swing lever? - Correct
Answer - Towards the bottom
what is the most common cause of accidents with mobiles cranes? -
Correct Answer - Improper crane setup
When the crane is overloaded and working above the bold line, what could
happen to the crane - Correct Answer - structural failure
the deflection of a boom will cause the load to? - Correct Answer - increase
the radius
which inspection has a competent person making records of the
inspection? - Correct Answer - Month
when should tag lines be used? - Correct Answer - when the rotation of the
suspended load becomes hazardous
what shall be in the operator's cab during crane operations? - Correct
Answer - load charts
, 3
which of the following is considered duty-cycle work? - Correct Answer -
clamshell digging.
when doing the duty cycle work, most manufactures require the crane's
capacity to be reduced by? - Correct Answer - 20%
which components are not parts of the boom? - Correct Answer - Heel pins
the boom angle on a lattice boom crane, is the angle between? - Correct
Answer - The ground and the centerline of the boom, between the sheaves
and the heel pins.
Three short audible signals means? - Correct Answer - Back-up
According to ANSI B30.5, hand signal chart shall be posted where? -
Correct Answer - On the job site
a signal person shall be? - Correct Answer - A designated person, tested
and qualified
an anti-two-block device can be used? - Correct Answer - To test the LMI
Cranes should be load tested when? - Correct Answer - After modifications
upon completion of assembly of the crane, what must be done? - Correct
Answer - an inspection to ensure that manufacturer specifications are met
