If both fists are placed in front of your body with your thumbs pointed outward, the crane
operator should: - ANSWER Extend the boom sections
What is the MAXIMUM percent of the rated capacity of a crane that can be used to lift per-
sonnel? - ANSWER 50%
When does lightning present the biggest hazard to the crane and rigging personnel? - AN-
SWER When thunder and lightning are apparent
What force would be required to move an object up an inclined plane compared to lifting it
vertically? - ANSWER 1 1/2 times more
Personnel platforms shall NOT be used to lift: - ANSWER Tools and materials without em-
ployees
All of the following are reasons for stopping personnel lifting operations EXCEPT :
a. The A-2-B (anti-two-block) malfunctions
b. Dangerous weather is approaching
c. Radio communication fail
d. There are no taglines - ANSWER There are no taglines
When working in close quarters, the main concern is: - ANSWER Safety
1
, The point of any object's weight can be assumed to be concentrated at; - ANSWER Center
of Gravity
In a split-gear chain hoist with a two chain system, the endless chain is used to: - AN-
SWER Raise and lower the load
In an emergency situation, what is the riggers FIRST priority? - ANSWER To prevent injury
or loss of life
All of the following conditions exert dynamic loading on a crane EXCEPT:
a. Swinging
b. Adverse operating conditions
c. Static boom angle
d. Traveling - ANSWER Static boom angle
Proper lead sheave placement as it relates to the hoisting drum location is: - ANSWER
Proper spooling of wire rope
The MOST important information to consider when planning a lift is: - ANSWER Weight of
the load
Prior to use, all new, altered, modified, or repaired rigging hardware shall be inspected by
whom? - ANSWER A designated person
24,000 lbs - ANSWER What is the load on Block B in the figure provided?
12,000 lbs - ANSWER What is the load on Block C in the figure provided?
6,240 lbs - ANSWER What is the load on Block D in the figure provided?
2
operator should: - ANSWER Extend the boom sections
What is the MAXIMUM percent of the rated capacity of a crane that can be used to lift per-
sonnel? - ANSWER 50%
When does lightning present the biggest hazard to the crane and rigging personnel? - AN-
SWER When thunder and lightning are apparent
What force would be required to move an object up an inclined plane compared to lifting it
vertically? - ANSWER 1 1/2 times more
Personnel platforms shall NOT be used to lift: - ANSWER Tools and materials without em-
ployees
All of the following are reasons for stopping personnel lifting operations EXCEPT :
a. The A-2-B (anti-two-block) malfunctions
b. Dangerous weather is approaching
c. Radio communication fail
d. There are no taglines - ANSWER There are no taglines
When working in close quarters, the main concern is: - ANSWER Safety
1
, The point of any object's weight can be assumed to be concentrated at; - ANSWER Center
of Gravity
In a split-gear chain hoist with a two chain system, the endless chain is used to: - AN-
SWER Raise and lower the load
In an emergency situation, what is the riggers FIRST priority? - ANSWER To prevent injury
or loss of life
All of the following conditions exert dynamic loading on a crane EXCEPT:
a. Swinging
b. Adverse operating conditions
c. Static boom angle
d. Traveling - ANSWER Static boom angle
Proper lead sheave placement as it relates to the hoisting drum location is: - ANSWER
Proper spooling of wire rope
The MOST important information to consider when planning a lift is: - ANSWER Weight of
the load
Prior to use, all new, altered, modified, or repaired rigging hardware shall be inspected by
whom? - ANSWER A designated person
24,000 lbs - ANSWER What is the load on Block B in the figure provided?
12,000 lbs - ANSWER What is the load on Block C in the figure provided?
6,240 lbs - ANSWER What is the load on Block D in the figure provided?
2
