ASSIGNMENT 9
Textbook Assignment:
Cranes and Attachments, pages 12-1 through 12-55.
Learning Objective:
Recognize
the types and principles of cranes.
9-1.
9-2.
9-3.
9-4.
9-5.
Cranes are classified as what
type of equipment?
1.
Material handling
2.
Load handling
3.
Weight handling
4.
Cargo handling
What types of crane carrier or
mounting is used by the NCF?
1.
Crawler only
2.
Truck and crawler only
3.
Wheel and truck only
4.
Crawler, truck, and wheel
Crawler-mounted cranes are
categorized under what USN
number registration series?
1.
37-00000
2.
42-00000
3.
60-00000
4.
82-00000
It is NOT productive to travel
a crawler-mounted crane for more
than what distance, in miles?
1.
1
2.
2
3.
3
4.
4
Crawlermounted cranes having
tracks that extend are rated at
what percentage of the minimum
weight that can cause the crane
to tip?
1.
90%
2.
85%
3.
80%
4.
75%
9-6.
Crane radius is measured from what
two points?
1.
Boom butt to the center
of the hook
2.
Center of rotation to
the boom tip
3.
Center of rotation to
the center of the hook
4.
Boom butt to the boom tip
9-7.
Which of the following areas
are quadrants of operation for
a crawler-mounted crane?
1.
Over the side
2.
Over the drive end
3.
Over the idler end
4.
All of the above
9-8.
Truck-mounted cranes are
categorized under what USN
number registration series?
1.
37-00000
2.
42-00000
3.
60-00000
4.
82-00000
9-9.
What is the absolute limit of
approach for a crane working in
an area of power lines that have
a current of 125,000 to 250,000
volts?
1.
10 feet
2.
15 feet
3.
20 feet
4.
25 feet
9-10.
A boom should rest in the cradle
when traveling with a truck-mounted
crane equipped with a lattice boom.
1.
True
2.
False
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