Final answer:
All factors listed, including the weight of the load, the distance the load will be lifted, and the angle at which the load will be lifted, must be considered when determining the load rating of a crane.
Step-by-step explanation:
When determining the load rating of a crane, an operator must take into consideration all of the following factors: the weight of the load, the distance the load will be lifted, and the angle at which the load will be lifted. These factors are crucial because they affect the crane's stability, lifting capacity, and overall safety of the lifting operation.
The weight of the load is the most obvious factor; the crane must be capable of lifting the load without exceeding its maximum rated capacity. The distance the load will be lifted is important because the lifting capacity of a crane decreases as the working radius (distance from the crane's center to the load's center of gravity) increases. Lastly, the angle of the lift affects the load's stability, with certain angles potentially placing more strain on the crane's structure and mechanisms. Therefore, the correct answer to the question is 4) All of the above.