CATEGORY 3 NON-CAB OPERATED TEST Questions and answers 2026

Bridge cranes with rated capacities of 20,000 lbs. or greater are classified as ______ cranes

Category 2

The expiration date that is of particular importance to crane operators is

The certification expiration date of the crane

Who is primarily responsible for evaluating a Crane Operators physical and emotional fitness

crane operator

A monorail hoist with less than 20,000 lbs. capacity is a ________________ crane.

Category 3

Components that control, restrain, or position the load, and upon failure would cause dropping, shifting or uncontrolled movement of the loads are ____________.

load controlling parts

All of the following require a license to operate EXCEPT a:

Non-cab operated category 3-bridge crane

What is two-blocking and why is two-blocking dangerous?

Two-blocking occurs when the hook block comes in contact with the upper sheave block during hoisting of the hook. It is dangerous because it could result in damage to the crane, parting of the hoist lines, and dropping the load.

The formula for determining the area of a triangular shaped object is:

Base x Height divided by 2

When are operators required to perform a pre-use check of the crane?

Prior to the first use of the crane each day.

Regardless of the method of communication used all crane signals must be ____________________.

clear

Synthetic web slings should NOT be used in areas where temperatures exceed 194 degrees Fahrenheit.

True

If an object is 6 feet long, 5 feet wide, and 4 feet high, what is the volume of the object?

120 cubic feet

Is it necessary for the operator to see the load or work area?

Not if there is a designated signal person who is in control of the lift and is in view of the operator, or if the signal giver is in constant radio contact with the operator.

What is "inching"?

Performing a motion very slowly, a little at a time

The majority of crane accidents are attributed to which of the following?

Personnel error

Crane operators at naval activities may be required to operate various types of cranes for which they hold a license. Which of the following can best assure operator proficiency and safety?

Be familiarized by a qualified person before operating the crane for the first time

Which of the following is NOT an acceptable method of communication between the signal person and the crane operator?

Signal Flags

Which of the following is used with a physical locking device placed at the energy source?

Lockout Tag

Which of the following is considered to be the best way the operator can ensure the crane is safe to operate on any given day?

Perform Daily Pre-use Checks

When crane accidents happen, you must do all of the following EXCEPT:

Continue to operate the crane until all lifts are completed

Components that provide protection for operation and maintenance personnel working on or in the path of cranes.

General Safety Devices

If the crane operator and the rigger in charge disagree on whether or not a load is safe to lift the operator should:

not operate the crane until contacting the supervisor to resolve the issue.

Components that support the load, and upon failure would cause dropping or uncontrolled lowering of the load are ____________.

load bearing parts

What is meant by "skewing"?

Where one end of the bridge gets ahead of the other end, frequently causing binding on the rails.

What are the principal parts of an overhead traveling crane?

Bridge girders, end trucks, trolley, and operator's cab or pendant control

Why shall sudden starts and stops of the bridge and trolley be avoided?

Sudden starts and stops may cause skidding and uneven wear of the wheels

Select the proper method of landing a load.

Lower the load slowly, stop a few inches from the landing point, then slowly lower the rest of the way.

The crane operator must check the certification information on the crane for________ before operating the crane.

certification expiration date, crane ID, and certified capacity

What is the bridge crane communications hand signal pictured, with the palms up, fingers closed; thumb pointing in the direction of motion, and jerking horizontally?

Trolley travel

At what point during a lift may trolley or bridge travel be started?

When the tracks are clear and the load is high enough off the ground to pass over obstacles safely

What is the crane communications hand signal pictured, with the arm extended downward, forefinger pointing down, and moving the hand in a small horizontal circle?

Lower

Why should the hook be positioned directly over the load when attaching the load?

To avoid side loading and dragging the load as it is picked up

Bridge cranes with rated capacities of less than 20,000 lbs. are classified as ______ cranes.

Category 3

More than one signal person may provide signals to a crane operator at a time.

False

What is the crane communications hand signal pictured, with the arm extended, palm down, moving the arm back and forth horizontally?

Stop

A crane accident occurs when any element of the crane operating envelope fails to perform correctly during crane operations, maintenance, or testing which could result in any of the following EXCEPT:

NOT Two-Blocking or overload

NOT Personnel Injury or Death Equipment malfunction

Common modes of operation for typical OET bridge cranes are:

hoist, trolley, and bridge.

The crane operator is responsible for the pre-use ________ of the crane.

check

Shackles, wire rope slings, and /or eyebolts, may be used to their full capacity when used within ____ of vertical.

5°

Which of the following formulas would be used to find the volume of a rectangular or square shaped 3 dimensional object?

Length X width X height

What should be done when leaving a crane at the end of the work shift?

Raise blocks into the upper limit switch

Ensure all controls are in the neutral or "off" position

Position the crane away from boarding platforms

Secure power

The crane operator STOPS the crane whenever ________ is in question.

safety

What is the purpose of a hoist limit switch?

To prevent overtravel of the hook block and the possibility of two-blocking

Knowing the load's approximate center of gravity prior to rigging or lifting a load is important:

All of the Above

What is the operator's main concern during crane operations?

Operating safely

Who can remove a danger, caution, or lockout tag?

The person who attached the tag or his or her supervisor when they are not available

New shackles put into the weight handling equipment program are required to have all of the following markings on, or attached to the shackles EXCEPT:

Date of Manufacture

How should an operator check the hoist brakes when lifting a load?

Lift the load a few inches off the ground and stop hoisting to ensure there is no slippage of the brakes.

What are the actions required if an asterisked item on the ODCL is found unsatisfactory during the pre-use check of the crane?

Stop operation and notify engineering of the deficiency.

What is the crane communications hand signal pictured, with both arms extended, palms down, moving arms back and forth horizontally?

Emergency stop

If an object is 6 feet long, 4 feet wide, and 2" thick, what is the area of the object?

24 square feet

What signal may an operator obey from a person other than the designated signal giver?

Stop or Emergency Stop

When should a tagline be used during lifting operations?

To prevent the load from swinging or rotating

What is "plugging"?

The use of reverse power instead of a brake to slow or stop the bridge or trolley travel

When making two-hook lifts, the capacity of __________ MUST NOT BE exceeded at any time.

either hook

Crane Operators are responsible for all of the following EXCEPT:

Slowing down when signals are unclear

Components that affect the safety and capability of the WHE, by stopping or limiting the operation when activated are __________________.

operational safety devices

What is the minimum amount of rope that shall be on a grooved drum and a smooth drum?

2 full wraps, 3 full wraps

While performing a pre-use check, the operator must check the wire rope system for all of the following EXCEPT:

Size and grade of wire rope

While performing a monthly ODCL on a crane you find minor deficiencies. What do you do?

Note the deficiencies on the ODCL

A pillar-Jib crane with a capacity of 22,000 lbs. is a __________ crane.

Category 2

Which of the following tags prohibits operation of equipment when its operation could jeopardize the safety of personnel or endanger equipment?

Danger Tag

Which of the following identify the two categories of crane lifts?

Complex and Non-Complex

What is the weight of a 24 sq ft, 2 inch thick aluminum plate with a unit weight is of 15 lbs. per square foot of material per inch of thickness?

720 lbs.

When is it permissible for an operator to leave the controls of a crane while a load is suspended from the hook?

The operator shall remain at the controls at all times while a load is suspended from the hook.

Sling angles affect the actual stress on each leg of the sling. Lowering the angle measured from the horizontal will:

increase the stress on each leg.

What is the crane communications hand signal, pictured, with the arm vertical, forefinger pointing up, moving the hand in small horizontal circle?

Hoist

What may cause the bridge to skew?

Wheel slippage on one side only because of a slippery track, or a heavy load suspended from one end of the bridge

Which tag alerts operators to special instructions for operating the equipment?

Caution Tag

Taking the slack out of rigging and starting to move a load or empty hook should be performed in first hoisting position or at the slowest possible speed.

True

What should an operator do if he/she is not sure of the meaning of a signal?

Stop operation until the meaning of the signal is understood

If an object has a volume of 200 cubic feet. and the unit weight is 150 lbs. per cubic foot, what is its weight?

30,000 lbs.

What is the bridge crane communication hand signal pictured, with the arm extended forward, hand open and slightly raised, making a pushing motion?

Bridge travel

Two-crane lifts require two signalmen to safely control the load

False

All of the equipment types listed below are covered by the P-307 EXCEPT:

Construction Equipment

All of the following describe the purpose of the NAVFAC P-307 EXCEPT

Maximizes efficient use of the equipment