NCCCO CORE EXAM QUESTIONS

NCCCO CORE EXAM QUESTIONS

AND VERIFIED ANSWERS

Timber Crane Mats Work Best When They Are:

• Bolted Together
• Nailed Together
• Wired Together

D) Left Loose Correct Answer: A) Bolted Together

When Lifting Loads That Are Submerged Under Water With A Mobile Crane, What Is One Of The Conditions That The Operator Should Be Familiar With?

• Current Can Change And Cause The Crane To Tip Over
• Brakes Or Dogs On The Crane Could Get Wet And Slip
• Boom And Extension Can't Be Removed Without High Tide
• Load Will Increase When Lifting The Load Out Of The Water

Correct Answer: D) Load Will Increase When Lifting The Load

Out Of The Water

When Lifting Over Water With A Personnel Platform, What Are The Occupants Of The Platform Required To Wear?

• A Body Harness
• A Waist Belt
• A Floatation Device

D) A Full Face Respirator Correct Answer: C) A Floatation Device

If A Mobile Crane Is Not Set-Up Level And The Operator Swing The Load From The High Side To The Low Side, What Effect Will That Have On The Radius?

• The Radius Will Decrease
• The Radius Stays The Same
• The Radius Can't Be Calculated

D) The Radius Increase Correct Answer: D) The Radius Increase

Increasing The Distance From The Crane's Center Of Gravity To The Tipping Axis Will Have What Effect On A Mobile Crane?

• Increase Stability
• Decrease Stability 1 / 4

• Increase Structural Competence

D) Decrease Structural Competence Correct Answer: B) Decrease

Stability

Backward Stability Of A Mobile Crane Is Tested In Which Configuration Listed Below?

• Basic Boom At Maximum Angle With Maximum Load
• Maximum Boom At Maximum Angle With Maximum Load
• Basic Boom At Minimum Angle With No Load
• Basic Boom At Maximum Angle With No Load Correct

Answer: D) Basic Boom At Maximum Angle With No Load

What Is The Minimum Pitch Diameter Used For Sheaves In A Boom Hoist Reeving System Using Rotation Resistant Wire Rope?

• Not Less Than 15 Times Rope Diameter. Boom Hoist
• Not Less Than 16 Times Rope Diameter. Load Block
• Not Less Than 18 Times Rope Diameter, Load Hoisting- This Is The

One On The Test

D) Not Less Than 20 Times Rope Diameter Correct Answer: A)

Not Less Than 15 Times Rope Diameter. Boom Hoist

When Can Capacity Altering Modifications Be Made To Mobile Cranes?

• Capacity Altering Modifications May Not E Made To Mobile Cranes
• When Lifting In The Tipping Portion Of The Load Chart
• When Lifting In The Structural Portion Of The Load Chart
• When Permission Is Given By The Crane Manufacturer

Correct Answer: D) When Permission Is Given By The Crane

Manufacturer

A Crane Is At The Point Of Instability When The Crane's Leverage On

The Load Equals:

• 100% Of The Load's Leverage On Crane
• 90% Of The Load's Leverage On Crane
• 85% Of The Loads Leverage On Crane

D) 75% Of The Load's Leverage On Crane Correct Answer: A)

100% Of The Load's Leverage On Crane

Who Must Determine Maximum Speed For A Mobile Crane To Travel With A Suspended Load?

• The Competent Person
• The Job Site
• The Superintendent 2 / 4

D) The Craft Foreman Correct Answer: A) The Competent Person

Deflection Of The Boom While Operating A Mobile Crane Will Increase?

• Load Radius
• Weight Of Boom
• Load Weight

D) Crane Stability Correct Answer: A) Load Radius

A Sudden Start Or Stop Of The Hoisting Function While Operating A

Mobile Crane Can Produce A:

• Static Load
• Dynamic Load
• Eccentric Load

D) Symmetrical Load Correct Answer: B) Dynamic Load

When Traveling With A Suspended Load On A Mobile Crane Climbing An Incline, The Load Should Be Carried In Which Direction

• Uphill
• Downhill
• Both Ways

D) Never Correct Answer: A) Uphill

Which Mobile Crane Boom Configurations Can Cause The Most Hazardous Side-Loading Condition For The Crane?

• Short Boom With Minimum Radius
• Long Boom With Minimum Radius
• Short Boom At 45 Degree Angle

D) Long Boom At 45 Degree Angle Correct Answer: B) Long Boom

With Minimum Radius

When Preparing To Hoist A Load, The Load Block Hook Should Be

Positioned:

• Slightly To The Side You're Planning To Swing
• Slightly To The Side Opposite You Plan To Swing
• Directly Above The Load's Center Of Gravity
• Above The Edge Of The Load Closest To The Crane Correct

Answer: C) Directly Above The Load's Center Of Gravity

When Making A Lift On Outriggers, The Maximum Ground-Bearing Pressure Occurs In Which Boom Position?

• Over The Rear
• Over The Corner 3 / 4

• Over The Front

D) Over The Side Correct Answer: B) Over The Corner

When Personal Platforms Are Hoisted With A Mobile Crane What Item Listed Below Must Be Provided?

• A Free Fall Button
• A Load Moment Indicator
• An Anti Two-Block Device

D) An Anti Collision Device Correct Answer: C) An Anti Two-Block

Device Personnel Platforms Suspended On The Hook Of A Mobile Crane, Must Not Exceed What Percentage Of A Crane's Capacity At Any Given Radius?

A) 50%

B) 75%

C) 100%

D) 125% Correct Answer: A) 50%

When Proof Testing A Personnel Platform To 125% Of Its Rated Capacity, How Long Must The Platform Be Suspended?

• 1 Minute

D) 10 Minutes Correct Answer: B) 5 Minutes

Which Of The Following Correctly States The Requirements For Hooks Used To Hoist Employees On A Crane-Supported Personnel Platform?

• Hooks Shall Have A Latch That Closes And Doesn't Lock.
• Hooks Shall Have A Latch That Closes And Locks.
• Hooks Shall Be Able To Support 25 Times Their Normal Rating
• Hooks Shall Be Able To Support 20 Times Their Normal Rating.

Correct Answer:

• Hooks Shall Have A Latch That Closes And Locks.

Osha Permits Hoisting Of Personnel By A Crane As Long As The

Employer Can Show:

• The Prevailing Wind Speed Is Less Than 35 Mph.
• There Is No Less Hazardous Or Practicable Way.
• All Personnel Have Cpr Training And First Aid.
• All Aerial Lifts On Site Are Being Used That Day. Correct

Answer: B) There Is No Less Hazardous Or Practicable Way.

• 7 Minutes
• 5 Minutes
• / 4