2026/2027 Updated Verified
Questions and Solutions A+
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1. Which area do truck cranes without a 5th outrigger generally have
no lifting capacity unless the manufacturer states otherwise?
- ANS - The front
2. What is the definition of "operating radius?"
- ANS - The distance from the center of rotation of the crane to the
center of gravity of the load
3. What applies to the capacities below the bold line shown on a load
chart?
- ANS - They are based on the stability of the crane
, 4. In which quadrant are rough terrain crane capacities generally
greater?
- ANS - Over the front
5. What percentage do most manufacturers requires a crane's load
chart capacity to be reduced by for duty cycle operations - such as
high-volume concrete placement?
- ANS - 20%
6. From which two points should the boom be measured?
- ANS - From the boom hinge pins, to the center of the boom tip
sheave
7. What is the preferred method of installing wire rope from a reel
onto a hoist drum?
- ANS - Running the rope from the top of the reel, to the top of the
drum.
8. Over which quadrant are truck crane capacities usually greater?
- ANS - Over the rear