NCCCO/ CCO Crane Tests BUNDLED TOGETHER (New 2023/ 2024 Update) Questions and Verified Answers| All Graded A | 100% Correct
NCCCO/ CCO Crane Tests BUNDLED
TOGETHER (New 2023/ 2024 Update)
Questions and Verified Answers| All Graded
A | 100% Correct
QUESTION
Why use mats or cribbing?
Answer:
To reduce ground pressure
QUESTION
Tipping capacities of crawler cranes are based on what percentage of tipping?
Answer:
75%
QUESTION
Should the load be applied when determining the proper boom angle?
Answer:
Yes
QUESTION
When should the operator use the “run by the seat of the pants” technique?
Answer:
Never
QUESTION
Load radius is the distance from the center of gravity of the suspended load to the:
Answer:
Center of rotation
QUESTION
What is the primary reason for using a boom extension?
Answer:
Increase height
QUESTION
What is the minimum design factor required for a right regular lay main, boom or auxiliary hoist
rope?
Answer:
3.5
QUESTION
When telescoping the boom section of an R/T, which section should be telescoped first?
Answer:
All sections should be telescoped equally
QUESTION
How does the operator determine if correct load chart is being used?
Answer:
Matching serial number
QUESTION
Net capacity is equal to:
Answer:
Gross capacity minus capacity deductions
QUESTION
If the SWL Of a crane’s wire rope is 10,000 pounds using one part, what is the SWL when using
four
Answer:
40,000 pounds
QUESTION
When first arriving on the job site, the operator should first determine the condition of the:
Answer:
Access roads
QUESTION
If the rated capacity of the crane is above the solid line or within the shaded areas or has an
asterisk next to it, this means the capacity is based on:
Answer:
Structural competence
QUESTION
All hazards and potential problems should be discovered during the:
Answer:
Pre-left site inspection
QUESTION
How many broken wires must be present in one strand of one lay for running wire rope to be
removed from service?
Answer:
3
QUESTION
In a range diagram, boom length and angle can be used to determine:
Answer:
Load radius
QUESTION
When picking a load out of water, the load will?
Answer:
Increase
QUESTION
What affect will lifting a heavy load have on a crane?
Answer:
Increase deflection
QUESTION
What is the first command when using voice signals?
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Where is the best location for leveling a crane?
- upperworks
When determining the gross load which is the best method is:
get an accurate load weight and add the rigging
By order of hitch strength, which is the-correct answer?
basket, vertical, choker
What is the purpose of using a jib?
increase in height
When taking a side strain on a boom, what concerns the operator most?
boom damage
You should always have at least how many wraps on a hoist drum?
2
On a load chart, values above the bold line mean:
capacities based on structural competence
The primary purpose for a rooster sheave or auxiliary boom point sheave is to:
separate the hoist lines
What is the proper procedure when using an insulating link or a boot near power lines?
be sure to maintain the correct allowable distance from the lines
When the number of layers of rope on a drum increases the;
allowable line pull decreases
What is the minimum allowable distance·from the crane and power lines under 50kV?
10ft
The term “Upperworks or Superstructure” refer to the area of the crane
Above the turntable
Side loading may be caused by
Starting or stopping the swing too rapidly
What is the best procedure to follow when underground utilities my be present?
contact local utility company
Eccentric main boom tip reeving causes
twisting of the boom
How many randomly broken wires must there be to remove a running wire rope from service?
6
When lifting personnel in a manbasket using 6 X 19 wire rope, the minimum safety factor is?
7
What is the safety factor required when using non rotating wire rope and lifting personnel in a ·
manbasket?
10
Who has the responsibility for determining the correct weight of a load?
Supervisor
While working near power lines, when is a signal person required?
when crane moves within a booms length of power lines
When an operator leaves the crane he must first
put the load on the ground and put all dogs or pawls in
If replacing the hoist line wire rope on a crane, how do you determine the size or type of wire rope to use
use Manufacturer’s Operator Manual or Load Chart
After the crane has been checked out and before crane lift operations begin the crew should
have a pre-lift meeting
According to OSHA 1926.1431, personnel platform lifts should not be made with wind in excess of:
20mph
When is it safe to work closer than the allowable distance from power lines?
when utility company says lines are de-energized
During setup how do you determine machine clearances (counterweight, boom, outrigger)?
measure for correct distances
When operating a crawler crane what is the most unstable allowable quadrant of operation?
side
When operating a truck crane what is the most unstable allowable quadrant of operation?
side
What is not a good location for crane setup?
Above utilities
When should a tagline be used?·
when rotation of load would be dangerous
When an operator arrives at the jobsite and the crane is already·erected, how would the operator
check the main and auxiliary hoist brakes?
lift the load off the ground and apply the brake
What is the difference between an Anti-two-block warning device and an Anti-two-block
prevention system?
warning device only warns but prevention system will stop the operation
Who gives the operator hand signals?
the qualified person assigned prior to the lift
Why use mats or cribbing?
To reduce ground pressure
Tipping capacities of crawler cranes are based on what percentage of tipping?
75%
Should the load be applied when determining the proper boom angle?
Yes
Each before being used, slings and all fastenings shall be inspected by a
competent person
Load radius is the distance from the center of gravity of the suspended load to the:
Center of rotation
What is the primary reason for using a boom extension?
increase height
What is the minimum design factor required for a right regular lay main boom or auxiliary hoist rope?
3.5
When telescoping the boom section of an R/T, which section should be telescoped first?
all sections should be telescoped equally
How does the operator determine if the correct load chart is being used?
matching serial number
Net capacity is equal to
gross capacity minus capacity deductions
If the SWL of a cranes wire rope is 10,000 lbs. using one part, what is the SWL when using 4 parts?
40,000 lbs.
When first arriving on the jobsite the operator should first determine the condition of the
access roads
How does the operator verify the LMI’S boom length or load radius reading?
actual·measurements
If the rated capacity of the crane is above the solid line or within the shaded areas or has an asterisk(*)
next to it, this means the capacity is based on
structural competence
All hazards and potential problems should be discovered during the
pre-lift site inspection
How many broken wires must be present in one strand of one lay for running wire rope to be removed
from service?
3
In a range diagram boom length and angle can be used to determine
load radius