Free NCCCO Service Truck Crane Operator Test 1

Question 1

What is the load block sheaves' minimum pitch diameter?

Accepted Answer

at least 16 times the diameter of the rope

Answer

at least 15 times the diameter of the rope

Answer

at least 20 times the diameter of the rope

Answer

at least 18 times the diameter of the rope

Question 2

When lifting with crawler cranes, which boom position would result in the most ground pressure?

Accepted Answer

Beyond the corner

Answer

Beyond the edge

Answer

Above the front

Answer

Above the back

Question 3

When can outrigger beams be covered with blocking (cribbing)?

Accepted Answer

Never

Answer

Always

Answer

Infrequently

Answer

Sometimes

Question 4

What is the boom hoisting sheaves' minimum pitch diameter?

Accepted Answer

at least 15 times the diameter of the rope

Answer

at least 20 times the diameter of the rope

Answer

at least 16 times the diameter of the rope

Answer

at least 18 times the diameter of the rope

Question 5

Which accessible section of a working crane must to be blocked off all the time, according to OSHA?

Accepted Answer

The revolving superstructure's back swing radius

Answer

From the top of the reel to the top of the drum, the rope extends.

Answer

They depend on the crane's steadiness.

Answer

Depending on which next boom length is shorter or longer and has a lower capacity

Question 6

When ought one to employ a tagline?

Accepted Answer

When a load's rotation could be hazardous
1910.180(h) & 1926.1417(w)(3)(xvi)
If it becomes essential, a tag or restraint line must be employed to stop the weight from rotating in a dangerous way.

Answer

From the top of the reel to the top of the drum, the rope extends.

Answer

The separation between the load's center of gravity and the crane's center of rotation

Answer

Crane capacity in the gray regions above the bold lines are determined by hydraulic or structural constraints. Based on stability ratings, the crane capacity are below the bold lines.

Question 7

In the context of load capacity charts, what does "jib angle to ground" mean?

Accepted Answer

main boom angle less the offset of the jib

Answer

The front

Answer

Divide the hoist lines.

Answer

only when loads are freely suspended

Question 8

What is the rotation resistant rope's safety factor for lifting people?

Accepted Answer

10:1

Answer

5:1

Answer

28:2

Answer

20:1

Question 9

What happens if you place timber blocking beneath a crawler crane's track tips?

Accepted Answer

increases the stability of the crane

Answer

He or she plans to proceed.

Answer

Divide the hoist lines.

Answer

lowers the crane's capacity

Question 10

What is the minimal distance under $50,000 that can be kept between a crane and electrical lines?

Accepted Answer

10 ft.

Answer

6 ft.

Answer

15 ft.

Answer

20 ft.