Mobile Crane Questions Test 1
1.Where is the best location for leveling a crane?: Upperworks.
2.When determining the gross load the best method is?: Get an accurate
load weight and add the rigging.
3.By order of hitch strength, which is the correct answer?: Basket,
vertical, choker.
4.What is the primary purpose of using a jib?: Increase height.
5.When taking a side strain on a boom, what concerns the operator most?: -
Boom damage.
6.You should always have how many wraps on a hoist drum?: 2.
7.On a load chart, values above the load line mean:: Capacities based
on structural competence.
8.The primary purpose for a rooster sheave or auxiliary boom point sheave
is to:: Separate the hoist lines.
1/
8
, 9.What is the proper procedure when using an insulating link or a boot
near power lines?: Be sure to maintain the correct allowable distance
from the lines.
10.When the number of layers of rope on a drum increases the::: Allowable
line pull increases.
11.What is the minimum allowable distance from the crane and power-
lines up to 50kV?: 10 ft.
12. The term "Upperworks" or "Superstructure" refers to the area of the
crane:-
: Above the turntable.
13.Side-loading may be caused by:: Starting or stopping the swing too
rapidly.
14.What is the best procedure to follow when underground utilities may
be present?: Contact local utility company.
15.Eccentric main boom tip reeving causes:: Twisting of the boom.
2/
8
1.Where is the best location for leveling a crane?: Upperworks.
2.When determining the gross load the best method is?: Get an accurate
load weight and add the rigging.
3.By order of hitch strength, which is the correct answer?: Basket,
vertical, choker.
4.What is the primary purpose of using a jib?: Increase height.
5.When taking a side strain on a boom, what concerns the operator most?: -
Boom damage.
6.You should always have how many wraps on a hoist drum?: 2.
7.On a load chart, values above the load line mean:: Capacities based
on structural competence.
8.The primary purpose for a rooster sheave or auxiliary boom point sheave
is to:: Separate the hoist lines.
1/
8
, 9.What is the proper procedure when using an insulating link or a boot
near power lines?: Be sure to maintain the correct allowable distance
from the lines.
10.When the number of layers of rope on a drum increases the::: Allowable
line pull increases.
11.What is the minimum allowable distance from the crane and power-
lines up to 50kV?: 10 ft.
12. The term "Upperworks" or "Superstructure" refers to the area of the
crane:-
: Above the turntable.
13.Side-loading may be caused by:: Starting or stopping the swing too
rapidly.
14.What is the best procedure to follow when underground utilities may
be present?: Contact local utility company.
15.Eccentric main boom tip reeving causes:: Twisting of the boom.
2/
8
