pg. 1 NCCCO Overhead Crane New Update 2024/ Actual Exam Questions with Correct Verified Answers/ Graded A+
On a lattice boom crawler crane, the main boom length is measured from the: - Correct Answer - Center of the boom heel pins to the center of the boom tip sheave
What is the main purpose of mid point suspension pendants? - Correct Answer - To absorb shock that comes with dynamic loading
The main purpose of a gantry or a mast on a crane is: - Correct Answer - To increase the crane's leverage on the boom
What effect does having the crawlers retracted have on a crawler crane with a long boom - Correct Answer - Increases the probability of tipping
When using a mobile crane on a barge, the crane's load capacity chart shall be - Correct Answer - Replaced by a list chart
Blocking can be placed under the ends of tracks to: - Correct Answer - Increase the crane's stability when operating over the front or back
Overhead cranes with more than one hoisting unit shall have? - Correct Answer - Its rated load marked on it.
How often does O.S.H.A. require a written wire rope inspection? - Correct Answer - Once a month
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pg. 2 What is the purpose of the "E" (Emergency) stop on an overhead crane? - Correct Answer - Removes power to entire crane.
Most loads should be rigged to within how many degrees of level? - Correct Answer - 5
According to ASME B30.2, what is the safety factor for rigging? - Correct Answer - 5 to 1
According to O.S.H.A. frequent inspections shall be performed? - Correct Answer - Daily to monthly
According to ASME B30.2 a frequent inspection must be performed by a? - Correct Answer - Designated person
According to OSHA, the maximum twist of the hook can't exceed? - Correct Answer - 10 degrees
When inspecting electrical contacts, what are the signs they are bad? - Correct Answer
- Pitted or burned
According to ASME B30.2, what type of fire extinguisher is required for overhead cranes? - Correct Answer - 10BC
Before leaving an overhead crane unattended, attached loads should be? - Correct Answer - Lowered to the floor
Before using your hand to steady any load, you should? - Correct Answer - Follow company policy
According to OSHA, the rated capacity of all overhead cranes shall be? - Correct Answer - Clearly marked on the side of the crane
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pg. 3 When attaching spreaders to any load, you must keep in mind that? - Correct Answer - The lower the spreader angle the greater the tension
By order of hitch strength, which is correct?
- Vertical, basket, choker
- Basket, vertical, choker
- Basket, choker, vertical
- Choker, basket, vertical - Correct Answer - Basket, vertical, choker
According to OSHA, the maximum hook throat opening must not exceed? - Correct Answer - 15% of its original size
How many cubic feet is in a rectangular object that measures S At. X3 At. X2 ft.? - Correct Answer - 30 cubic feet
An object weighs 150 lbs per cubic foot and measures 4 ft. X3 A. X3 ft., what is its weight? - Correct Answer - 5,400 lbs
According to OSHA, how many wraps must be left on the hoist drum of an overhead crane with the hook at its lowest position? - Correct Answer - 2 wraps
The upper limit switch of all overhead cranes shall be tested every? - Correct Answer - Shift
Vertical movement of an overhead crane is controlled by the? - Correct Answer - Hoist controller
A swinging load should be controlled by the? - Correct Answer - Bridge and trolley controller
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