National Commission for the Certification of Crane Operators (NCCCO) Mobile Crane Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the National Commission for the Certification of Crane Operators Mobile Crane Test. Utilize engaging flashcards and multiple-choice questions, complete with hints and explanations. Maximize your chances of passing the exam!

Start Multiple Choice Practice Test
Start Flash Cards

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the result of placing timber blocking under the tips of the tracks on a crawler crane?

  1. Decreases the permitted capacity of the crane

  2. Makes the crane more stable

  3. Reduces the capacity of the crane

  4. Makes the crane less stable

The correct answer is: Makes the crane more stable

Placing timber blocking under the tips of the tracks on a crawler crane enhances the crane's stability. This is achieved by distributing the weight more evenly and increasing the ground bearing surface area. By doing this, the blocking minimizes the risk of ground deformation or sinking that could occur under the extreme loads that crawler cranes are capable of lifting. When the tracks have additional support, it helps in maintaining the crane's equilibrium, especially when lifting loads near the limit of its capabilities or on uneven ground. Thus, using timber blocking effectively bolsters the overall stability of the crane during operations, making it safer and more efficient. The other options associated with decreased capacity or reduced stability do not align with the operational benefits of using blocking, which specifically addresses stability enhancement.

More Questions Like This