Crane basic knowledge Questions and
Answers Rated A+
A hook is on serviceable if it's twisted more the _______ degrees - ANSWER-0
A hook is unserviceable if a throat opening has an increase of _____% - ANSWER-5%
A hook is unserviceable if it's shows _______% wear in bowl - ANSWER-10%
According to 1926.1412 an operator aid shall be inspected and tested every _______ -
ANSWER-12 months
According to OSHA 1910.180 are cranes allowed to be overloaded - ANSWER-Yes but
only in testing and not over 110% rated capacity
According to OSHA 1926.1412 who can do an annual inspection - ANSWER-Qualified
person
B30.5 requires load indicator on cranes when it's max capacity exceeds - ANSWER-3
tons
Boom length is measured from the - ANSWER-Boom hinge pins, to the center of boom
tip sheave
Capacity of crawler cranes is based on ____% - ANSWER-75%
Capacity's below the bold line on the load chart are based on - ANSWER-Stability of the
crane
Cranes must be reduced to what capacity for two crane lifts - ANSWER-75%
Duty cycle - ANSWER-A reduction in capacity for heavy use
Eccentric main boom tip reeving causes_________ - ANSWER-Twisting of boom
Excessive side loading of booms by a freely suspended load is caused by _______ -
ANSWER-Starting or stoping the swing too rapidly
Frequent inspection - ANSWER-daily, monthly
Gross capacity - ANSWER-number on load chart
Gross load - ANSWER-Net load +load handling devices
Answers Rated A+
A hook is on serviceable if it's twisted more the _______ degrees - ANSWER-0
A hook is unserviceable if a throat opening has an increase of _____% - ANSWER-5%
A hook is unserviceable if it's shows _______% wear in bowl - ANSWER-10%
According to 1926.1412 an operator aid shall be inspected and tested every _______ -
ANSWER-12 months
According to OSHA 1910.180 are cranes allowed to be overloaded - ANSWER-Yes but
only in testing and not over 110% rated capacity
According to OSHA 1926.1412 who can do an annual inspection - ANSWER-Qualified
person
B30.5 requires load indicator on cranes when it's max capacity exceeds - ANSWER-3
tons
Boom length is measured from the - ANSWER-Boom hinge pins, to the center of boom
tip sheave
Capacity of crawler cranes is based on ____% - ANSWER-75%
Capacity's below the bold line on the load chart are based on - ANSWER-Stability of the
crane
Cranes must be reduced to what capacity for two crane lifts - ANSWER-75%
Duty cycle - ANSWER-A reduction in capacity for heavy use
Eccentric main boom tip reeving causes_________ - ANSWER-Twisting of boom
Excessive side loading of booms by a freely suspended load is caused by _______ -
ANSWER-Starting or stoping the swing too rapidly
Frequent inspection - ANSWER-daily, monthly
Gross capacity - ANSWER-number on load chart
Gross load - ANSWER-Net load +load handling devices
