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1. What is the primary purpose of a crane’s load chart?
A) To calculate fuel consumption
B) To determine lifting capacity at specific boom lengths and
angles
C) To measure operator skill
D) To schedule maintenance
B) To determine lifting capacity at specific boom lengths and angles
The load chart provides safe lifting limits based on boom
configuration and angle, preventing overloading.
2. Which factor most affects a crane’s stability?
A) Operator experience
B) Ground conditions
C) Crane color
D) Weather forecast
B) Ground conditions
Uneven or soft ground can cause a crane to tip, making ground
conditions the most critical factor for stability.
3. What is the safe radius for a crane’s swing area?
A) Equal to the boom length plus a safety buffer
, B) Twice the boom length
C) Half the boom length
D) The distance does not matter
A) Equal to the boom length plus a safety buffer
The swing radius should extend beyond the boom tip to prevent
collisions and accidents.
4. What is the purpose of a crane’s counterweight?
A) To increase speed
B) To balance the load and prevent tipping
C) To store tools
D) To improve fuel efficiency
B) To balance the load and prevent tipping
Counterweights stabilize the crane by offsetting the weight being
lifted.
5. Before operating a crane, what is the operator required to check?
A) Weather only
B) Load chart, controls, and safety devices
C) Fuel levels only
D) Operator’s uniform
B) Load chart, controls, and safety devices
Inspecting critical systems ensures the crane operates safely and
prevents accidents.
6. Which type of crane is typically used for high-rise construction?
A) Overhead bridge crane
B) Tower crane
C) Crawler crane
D) Floating crane
, B) Tower crane
Tower cranes are fixed and provide the height and reach needed for
skyscraper construction.
7. What is a tag line used for?
A) Measuring boom length
B) Guiding the load to prevent swinging
C) Fueling the crane
D) Signaling the operator
B) Guiding the load to prevent swinging
Tag lines help control the load during lifts, especially in windy
conditions.
8. When is a crane required to have outriggers fully extended?
A) Only for maximum loads
B) Whenever lifting off the ground
C) Only during night operations
D) Never
B) Whenever lifting off the ground
Fully extended outriggers increase stability and reduce the risk of
tipping.
9. What is the maximum allowable load on a crane called?
A) Working load limit (WLL)
B) Gross weight
C) Deadweight
D) Safe factor
A) Working load limit (WLL)
WLL is the maximum load the crane can safely lift under specific
conditions.