NCCER Crane Crane Components, Configurations & Terminology 3

Question 1

Which crane type has a single cab used for both driving and crane operation, large tires, and is meant for rough job sites rather than highways?

Accepted Answer

Rough terrain crane

Answer

Rough terrain cranes use one cab for travel and lifting and are designed for off-road site work.

Question 2

Which crane combines highway travel capability with multi-axle all-wheel steering and off-road performance?

Accepted Answer

All-terrain crane

Answer

All-terrain cranes have highway-legal carriers with all-wheel drive and steer for site mobility.

Question 3

A major advantage of a crawler crane over a wheeled mobile crane is that it:

Accepted Answer

Can often pick and carry loads and spreads weight over a larger track area

Answer

Crawler tracks give low ground bearing pressure and allow pick-and-carry within chart limits.

Question 4

On a tower crane, the counter-jib's primary purpose is to:

Accepted Answer

Carry the counterweight that balances the working jib

Answer

The counter-jib extends opposite the working jib and holds the counterweight ballast.

Question 5

A luffing jib differs from a fixed jib in that it:

Accepted Answer

Can change its angle during operation

Answer

A luffing jib can be raised and lowered independently of the main boom.

(NCCER Crane) National Center for Construction Education and Research Crane Certification Practice Test