Mobile Cranes No. 2 Questions With Complete
Solutions
A crane with a 120 ft boom will be operating at a
42 ft radius. The load chart has a capacity at 40 ft
radius and one at 45 ft radius. Which radius will
you use to find the gross capacity? Correct
Answers 45 ft
A frequent inspection is? Correct Answers daily to
monthly
A grab rail shall be installed inside of the personnel
platform except for access gates/doors how much
of the perimeter needs covered? Correct Answers
100%
A load moment indicator or capacity limiter shall
be installed on cranes with a lifting capacity of?
Correct Answers 3 ton and above
A periodic inspection is? Correct Answers monthly
to annually
A stationary load is? Correct Answers Static
A telescopic crane is equipped with an anti-two-
block lock out device. When the device is activated
which functions should be disabled? Correct
Answers Hoist up, extend out, and lower the boom
,A telescopic crane is going to lift personnel
platform, what is required? Correct Answers Boom
length indicator.
A truck crane operating with outriggers fully
extended and set, does not have its front outrigger
set, the operator should? Correct Answers Refer
to the manufacturers working area diagram
A truck crane, with outriggers properly set, is rated
at what percentage of its tipping capacity? Correct
Answers 85%
According to ASME B30.10 any hook having
distortion causing an increase in throat opening of
more than 5%, or exceeding 1/4 inch, shall be?
Correct Answers Repaired or replaced
According to ASME B30.10 any hook having wear
exceeding __________% shall be removed from
service Correct Answers 10%
According to B30.10 crane hooks must not be
twisted in excess of.... Correct Answers 0 degrees
According to B30.10 crane hooks throat opening
must not exceed: Correct Answers 5% of its
original size
, According to most manufacturers when performing
assembly or disassembly of booms what type of
slings should be used? Correct Answers Synthetic
Slings
According to OSHA 1926 subpart CC, when working
around power lines over 1000 kV the minimum
clearance is set by Correct Answers Utility
company owning power lines
According to OSHA 1926.1408, Option #2 (20 foot
clearance rule) what is the maximum voltage you
may work around? Correct Answers 350kV
According to OSHA 1926.1412 what type of
inspection is not required to be performed on
cranes? Correct Answers Quarterly
According to OSHA who should never be in the fall
zone? Correct Answers Signal person evaluator
According to the B30.5 cranes idle for less than 6
months must have _________ inspection performed?
Correct Answers frequent
According to the B30.5 cranes idle for more than 6
months must have _________ inspections
performed? Correct Answers frequent and
periodic
Solutions
A crane with a 120 ft boom will be operating at a
42 ft radius. The load chart has a capacity at 40 ft
radius and one at 45 ft radius. Which radius will
you use to find the gross capacity? Correct
Answers 45 ft
A frequent inspection is? Correct Answers daily to
monthly
A grab rail shall be installed inside of the personnel
platform except for access gates/doors how much
of the perimeter needs covered? Correct Answers
100%
A load moment indicator or capacity limiter shall
be installed on cranes with a lifting capacity of?
Correct Answers 3 ton and above
A periodic inspection is? Correct Answers monthly
to annually
A stationary load is? Correct Answers Static
A telescopic crane is equipped with an anti-two-
block lock out device. When the device is activated
which functions should be disabled? Correct
Answers Hoist up, extend out, and lower the boom
,A telescopic crane is going to lift personnel
platform, what is required? Correct Answers Boom
length indicator.
A truck crane operating with outriggers fully
extended and set, does not have its front outrigger
set, the operator should? Correct Answers Refer
to the manufacturers working area diagram
A truck crane, with outriggers properly set, is rated
at what percentage of its tipping capacity? Correct
Answers 85%
According to ASME B30.10 any hook having
distortion causing an increase in throat opening of
more than 5%, or exceeding 1/4 inch, shall be?
Correct Answers Repaired or replaced
According to ASME B30.10 any hook having wear
exceeding __________% shall be removed from
service Correct Answers 10%
According to B30.10 crane hooks must not be
twisted in excess of.... Correct Answers 0 degrees
According to B30.10 crane hooks throat opening
must not exceed: Correct Answers 5% of its
original size
, According to most manufacturers when performing
assembly or disassembly of booms what type of
slings should be used? Correct Answers Synthetic
Slings
According to OSHA 1926 subpart CC, when working
around power lines over 1000 kV the minimum
clearance is set by Correct Answers Utility
company owning power lines
According to OSHA 1926.1408, Option #2 (20 foot
clearance rule) what is the maximum voltage you
may work around? Correct Answers 350kV
According to OSHA 1926.1412 what type of
inspection is not required to be performed on
cranes? Correct Answers Quarterly
According to OSHA who should never be in the fall
zone? Correct Answers Signal person evaluator
According to the B30.5 cranes idle for less than 6
months must have _________ inspection performed?
Correct Answers frequent
According to the B30.5 cranes idle for more than 6
months must have _________ inspections
performed? Correct Answers frequent and
periodic
