EXAM COMPLETE 100 QESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A
Before leveling a mobile crane on outriggers, an operator
should ensure: - ANSWER >>>>there is no weight of the
crane bearing on any tires
Operating a mobile crane with a long boom, on uneven
ground, what support condition should be considered? -
ANSWER >>>>Keeping 90 degree angle between cylinder
rod and pad
What is the primary purpose fir a rooster sheave or auxiliary
boom point sheave? - ANSWER >>>>Separate the boom
hoist lines
How many randomly broken wires in a lay length must there
be on a mobile cranes hoist line, before it should be removed
from service? - ANSWER >>>>6
On a mobile crane, how many broken wires are permitted at
the end connection of a pendent before it must be taken out of
service? - ANSWER >>>>1
Type 1 rotation resistant hoist wire rope has a design factor
of: - ANSWER >>>>5 to 1
, How many randomly distributed broken wires in rotation-
resistant hoist wire rope are considered for replacement? -
ANSWER >>>>2 broken wires in 6 rope diameters
The term net capacity is best defined by which of the terms
listed below? - ANSWER >>>>Gross capacity minus capacity
deductions
Mobile cranes that are set up on barges, shall have a list chart
provided by which of the entities listed below? - ANSWER
>>>>Manufacturer
When lifting loads on tires, mobile cranes are rated at what
percentage of tipping? - ANSWER >>>>75%
How does the effective weight of a slowed extension relate to
the actual weight of the extension? - ANSWER >>>>Higher
than the actual weight.
When load radius is between radii values, the operator must
use the: - ANSWER >>>>longer radius
Why should only approved attachments or extra
counterweights provided by the manufacturer be placed on
the rear of the crane? - ANSWER >>>>They could cause a
backward stability problem.
A mobile crane's jib is offset 15º versus its original 0º offset,
but the boom angle remains unchanged. In this situation, the
load radius: - ANSWER >>>>increases