TET NCCCO General Knowledge Practice test

d. Center of rotation of the crane to the center of gravity of the load.

"Working radius" is defined as the distance from the: a. Base of the boom to the center of the load. b. Front of the crane to the center of gravity of the load. c. Center of rotation of the crane to the center of the load. d. Center of rotation of the crane to the center of gravity of the load.

a) 2

According to OSHA and ASME, what is the minimum amount of wraps that must remain on a grooved or smooth hoist or boom hoist drum? a) 2 b) 3 c) Depends on D/d diameter. d) Depends on what type of construction the wire rope is.

d) Notify the employers designated person in writing of the problem, then verify the weight of the lift to be made, measure the radius, and use the capacity chart to calculate the capacity.

According to OSHA, if the LMI on your crane malfunctions during the work shift, what should you do? a) Notify the shop and get them to repair it, and then continue operation. b) Try to repair it yourself. c) Call the manufacturer and let them know they have something wrong with this particular LMI. d) Notify the employers designated person in writing of the problem, then verify the weight of the lift to be made, measure the radius, and use the capacity chart to calculate the capacity.

a) The level must be tagged out of service and an alternate means must be used.

According to OSHA, if the built in level indicator on your crane is not working properly, what must be done? a) The level must be tagged out of service and an alternate means must be used. b) The level must be ignored and a portable level must be available for use. c) The level must be removed. d) Nothing, since a crane does not been to be level.

c) Positive stops.

According to OSHA, what must all jibs have? a) Positive angle. b) Offset of at least 5 degrees. c) Positive stops. d) Negative stops.

d) 20 feet

According to OSHA, when traveling a crane at a jobsite with no load under or near power lines, a spotteris required if anypart of crane will get closer than? a) 4 feet b) 6 feet c) 10 feet d) 20 feet

b) The site controlling entity.

According to OSHA, who is responsible to notify the user of the crane and the crane operator of any underground hazards? a) The site project superintendent. b) The site controlling entity. c) Use your own experience. d) The assembly/disassembly director.

b) increase.

As you boom down, leverage on a crane will... a) stay the same. b) increase. c) decrease. depend on the boom configuration.

d) Boom pivot pin to the center of the boom tip sheave.

How is boom length measured? a) Boom pivot pin to the outer part of the boom tip sheave. b) Center of rotation to boom tip. c) Back of the boom to the tip of the boom sheave. d) Boom pivot pin to the center of the boom tip sheave.

d) Extend boom.

Referencing the picture to the right, what is the hand signal? a) Travel both tracks. b) Boom out. c) Retract boom. d) Extend boom.

d) Stability.

The load chart capacities are based on either structural integrity or? a) Boom length. b) Jib angle. c) Ground pressure percentage. d) Stability.

d) Stay in the cab and try to break contact with the power lines in a reverse motion that caused the accident.

The load line of the crane you are operating comes in contact with an over head power line. There are no signs of danger, such as fire. In this case you should? a) Climb down and walk away from the crane. b) Jump off the crane making sure not to touch the ground and the crane at the same time. c) Nothing. d) Stay in the cab and try to break contact with the power lines in a reverse motion that caused the accident.

b) Make the crane more stable.

Timber blocking placed under the tips of the tracks on a crawler crane will? a) Will not change anything. b) Make the crane more stable. c) Increase the rated capacity of the crane. d) Decrease the rated capacity of the crane.

b) The line load being within 1% level.

What are the capacities in the load chart based on? a) Depends on the manufacture. b) The line load being within 1% level. c) The load line being within 2% level. d) The load line being within 4% level.

a) Track frame

What do you call the lower part of the crawler crane below the slewing gear? a) Track frame b) Carrier c) Crane hauler d) Axleame

c) Boom up and lower the load.

What hand signal does a signal person want the operator to perform when he has his arm extended thumb pointing up and his index fingers opening and closing? a) Boom up and cable down. b) Boom up and hold the load. c) Boom up and lower the load. d) Boom up.

b) Horizontal distance from the center of swing circle to the center of the gravity of the load.

What is the definition of radius? a) Horizontal distance from the center of the lift to the center of rotation. b) Horizontal distance from the center of swing circle to the center of the gravity of the load. c) Vertical distance from the center of rotation to the center of gravity of the load. d) Distance from the back of the crane to the center of gravity of the load.

d) 200%

What is the percentage of a vertical basket hitch capacity to that of a vertical hitch capacity? a) 175% b) 45% c) 145% d) 200%

d) Because of the more than normal side loading that can be applied when doing duty cycle work.

What is the reason crane manufacturer's require a reduction in capacity when doing duty cycle work? a) Because cranes are not designed to handle repeated heavy loads. b) Because the repeated motions that are applied to the crane. c) Because cranes are not designed to handle concrete work and this is how they allow it. d) Because of the more than normal side loading that can be applied when doing duty cycle work.

a) With the manufacturer's or a qualified person permission.

When are you authorized to re-rate a crane? a) With the manufacturer's or a qualified person permission. b) When the operator determines it is necessary. c) Never. d) When the crane owner approves it.

b) Nylon or synthetic slings.

When considering the suspension system for a personnel platform, according to ASME B30.23 what is not permitted? a) Chain slings. b) Nylon or synthetic slings. c) Wire rope slings. d) Platforms designed that the main structure is incorporated into the suspension system.

b) Barricades or caution lines, and notices, are erected to prevent all employees from entering the fall zone and where the weight of the working gear is negligible relative to the lifting capacity and is suspended over an area other than an entrance or exit.

When is it acceptable for an operator to leave the cab of a crane with a load suspended? a)It is never acceptable. b) Barricades or caution lines, and notices, are erected to prevent all employees from entering the fall zone and where the weight of the working gear is negligible relative to the lifting capacity and is suspended over an area other than an entrance or exit. c) When the load is to be held suspended for a period of a time exceeding normal lifting operations. d) When the operator decides that it is safe.

a) Swing away from the crane.

When lifting a heavy load off the ground, what will the load tend to do? a) Swing away from the crane. b) Nothing. c) Swing towards the crane.d) Slings will keep it from swinging in any direction.

d) Boom angle decreases.

When picking on rubber, what happens? a) Radius decreases. b) Boom angle increases. c) The tires will be overloaded. d) Boom angle decreases.

b) Pin must be placed in the hook.

When rigging 2 slings into a shackle; a) The shackle body must contact the hook. b) Pin must be placed in the hook. c) The sling angle must be below 90 degrees. d) The bowl of the shackle must be placed in the hook.

c) Boom over the corner.

Where would the greatest ground pressure be when considering a crawler crane? a) Boom over the rear. b) Boom over the side. c) Boom over the corner. d) Ground pressure stays the same on crawler cranes.

c) A qualified evaluator.

Which one of the following persons are not allowed in the fall zone? a) A person hooking or unhooking load. b) A person guiding the load. c) A qualified evaluator. d) Concrete bucket operator.

b) The site supervisor.

Who ensures the area where the crane will be set up is adequately prepared? a) The crane operator. b) The site supervisor. c) The crane owner. d) The lift director.

d) A competent person.

Who is responsible to do the shift inspection on a crane? a) A mechanic on the job site. b) The operator. c) Signal person. d) A competent person.

a. 1%

Within what percentage of level does a telescopic boom crane have to be for the gross ratings in the load chart to remain valid? a. 1% b. 2% C. 5% D. It doesn't matter so long as the outriggers are fully extended and set.