NCCCO Tower Crane Test New

NCCCO Tower Crane Test (New Update) Questions and Verified Answers| Graded A| 100% Correct

QUESTION

According to AMSE B30.3 an overhead powerline is ALWAYS considered to be:

Answer:

Energized until the power company has verified it is not energized

QUESTION

High tensile bolts shall be marked with manufacturers designation and:

Answer:

Strength rating

QUESTION

Bolt connections for tower sections must use high tensile strength nuts with ratings of:

Answer:

12

QUESTION

Washers used in high tensile bolt connections shall be marked with:

Answer:

HV

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QUESTION

Before installation high tensile bolt connection Components shall be cleaned and visually

examined for:

Answer:

Damage and corrosion

QUESTION

When ready to torque the nut on a high tensile bolt connection you should:

Answer:

Lubricate threads

QUESTION

During tightening of high tensile connections the bolt is stretched to a specific percentage of its

elastic limit at the correct:

Answer:

Torque

QUESTION

Preferably the tightening torque shall be applied to the:

Answer:

Nut

QUESTION

The tightening torque values placed on the nuts and bolts of high tensile bolt connection are

dependent on the:

Answer:

Type and size 2 / 4

QUESTION

What components of a tower crane are connected with high tensile bolt connections?

Answer:

Foundation anchors, tower sections, slewing ring support

QUESTION

When the Tower base bolts are torqued the counter jib should be positioned:

Answer:

0° from the bolt

QUESTION

According to the NCCCO tower crane reference manual what items below should be part of the operators Daily pre-check?

Answer:

Wire ropes, limit switches

QUESTION

According to the NCCCO tower crane reference manual, how many safety turns (wraps) must be left on the hoist drum when the load hook is in its lowest position?

Answer:

3

QUESTION

According to the NCCCO tower crane reference manual,when possible, installing the hoist wire rope on a tower crane you should wind the rope with approximately how much of the maximum permissible load? 3 / 4

Answer:

10%

QUESTION

According to ASME B30.3, what is the design factor for rotation resistant load hoist wire rope?

Answer:

5.0 to 1

QUESTION

Who determines the correct hoist wire rope to be installed on tower cranes?

Answer:

Manufacturer

QUESTION

What grade alloy steel chain should be used for crane hoisting slings?

Answer:

80

QUESTION

According to ASME B30.3, using rotation resistant running rope on a tower crane, how many broken wires in six rope diameters can you have to leave it in service?

Answer:

1

QUESTION

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