Nccco core Exam Study Guide Questions with

pg. 1 Nccco core Exam/ Study Guide Questions with Correct Verified Answers/ Latest Update /Rated A+

How many broken wires must be present in one strand of one lay for running wire rope to be removed from service - ANSWER - 3

How many broken wires must be present in rotation resistant wire rope to be removed from service - ANSWER - 2 in six diameters

What is the minimum clearance needed between cranes counterweight and any obstacle - ANSWER - 2 feet

To restrict access to a crane swing radius the operator must - ANSWER - Barricade the area around the crane

You should always have at least how many wraps on A hoist drum - ANSWER - 2

When working around powerlines you must - ANSWER - Never stockpile material under powerlines Maintain the correct distance according to the rated KV Ground the crane with the proper grounding cable

Boom angle is best described as - ANSWER - The angle between the loaded boom and the horizontal

What is the best procedure to follow when underground utilities may be present - ANSWER - Contact local utility company 1 / 4

pg. 2 All bridals and rigging used for personal hoisting cannot be used and for any other hoisting activities - ANSWER - True

Before performing a lift with a personal hoist the following must be done - ANSWER – ➢ Trial pick ➢ Proof lift ➢ Pre-lift meeting

When performing a pic with a personnel hoist overwater for arrest systems must be used - ANSWER - False

Load rating charts are based on a percentage of the load which produces a tipping condition and the least stable direction the percentage is what for a truck crane -

ANSWER - 85%

A sudden change in the speed of the left and attachments will produce a - ANSWER - Shock load

When using cable or nylon spreaders it is important to remember - ANSWER - The lower the spreader angle the greater the tension

When is spinning load presents a danger the operator should - ANSWER - Use a tagline

Parts of line means - ANSWER - The number of lines running through the load block

A sudden start or stop while operating a crane produces - ANSWER - A dynamic load

What percent of a cranes rated capacity is it classified as a critical lift - ANSWER - 75%

During disassembly of a long boom the hog lines are connected on a maximum cantilever point and the boom is slightly lifted off the ground which pins are to be removed next - ANSWER - The bottom pins ahead of the cantilever point 2 / 4

pg. 3

If you were to make a left using a four legged bridle how many legs are you going to calculate the load - ANSWER - 3

According to OSHA all cranes equipped with a luffing jib must have - ANSWER - Check valve

When performing picking Carrie with a boom truck the speed limit is - ANSWER - As prescribed by the manufacturer

When determining backward stability the crane must be set up under the following conditions - ANSWER - Crane unloaded and load block on supports Crane on outriggers Maximum boom angle Crane SHOULD NOT BE in the longest possible boom

On a crane load chart the area referred to as over the front is - ANSWER - Different depending on the crane manufactures definition

When cranes included within the scope of ANSI are mounted on barges or pontoons the cranes load rating shall be - ANSWER - Modified as recommended by the manufacturer

The first layer of a Hoist drum should have a pitch diameter of no less than times the rope diameter - ANSWER - 18

Drum rotation indicators must be installed on all hoist leavers - ANSWER - True

On a hydraulic boom hoist pistons a must be provided in case of hydraulic failure - ANSWER - Pressure relief valve

• / 4

pg. 4 All cranes equipped with a torque converter must have a - ANSWER - Clutch reachable from the operators station

Controls for operating a superstructure mounted power plant shall include all of the following except - ANSWER - Means to shut off two cycle diesel engines in emergency

Forces on a cranes hand lever Shall not exceed - ANSWER - 35 lbs

Forces on a cranes Foot pedal shall not exceed - ANSWER - 50 pounds

The travel distance on a cranes two way lever must not exceed from the neutral position

• ANSWER - 14 inches

The travel distance on a cranes one-way lever must not exceed from the neutral position - ANSWER - 24 inches

Frequent inspection occurs - ANSWER - Every shift

Frequent inspection should be performed by - ANSWER - Competent person

Periodic inspection occurs - ANSWER - Weekly to monthly

When using single saddle or U bolt type clips the saddle shall NEVER be installed on - ANSWER - The live end

The pitch diameters for boom hoist sheaves shall not exceed - ANSWER - 15

Pitch diameter load hoist sheave shall not exceed - ANSWER - 18

Pitch diameters for load block sheaves shall not exceed - ANSWER - 16

• / 4