STUDY Flashcards
Where is the best location for leveling a crane?
a. carrier
b. upperworks
c. cab
d. carbody
upperworks
When determining the gross load the best method is:
a. guess the approximate load weight and add the rigging
b. get an accurate load weight and add the rigging
c. guess the approximate load weight
d. get an accurate load weight
get an accurate load weight and add the rigging
By order of hitch strength, which is the correct answer?
a. vertical, basket, choker
b. basket, vertical, choker
c. basket, choker, vertical
d. choker, basket, vertical
basket, vertical, choker
What is the purpose of using a jib?
a. increase load radius
b. decrease load radius
c. increase height
d. decrease height
increase height
When taking a side strain on a boom, what concerns the operator most?
a. no concern
b. boom damage
c. tipping
d. sheave damage
boom damage
You should always have at least how many wraps on a hoist drum?
a. 5
b. 2
c. 3
d. 1
2
On a load chart, values above the bold line mean:
a. capacities based on tipping
b. capacities based on structural competence
c. capacities should be reduced by 20 %
d. on tire capacities
capacities based on structural competence
The primary purpose for a rooster sheave or auxiliary boom point sheave is to:
a. separate the hoist lines
b. add height to the boom
c. increase the load radius
d. decrease the load radius
separate the hoist lines
What is the proper procedure when using an insulating link or a boot near power lines?
a. be sure to maintain the correct allowable distance from the lines (OSHA)
b. you may decrease the allowable distance from the lines
c. You may decrease the allowable distance from the lines if you use a signal person
d. be sure to increase the allowable distance from the lines
be sure to maintain the correct allowable distance from the lines (OSHA)
When the number of layers of rope on a drum increase the:
a. allowable line pull decreases
b. allowable line pull increases
c. allowable line pull remains the same
allowable line pull decreases
What is the minimum allowable distance from the crane and powerlines under 50 kV?
a. 25 ft
b. 10 ft.
c. 15 ft
d. 20 ft.
10 ft.
the term upperworks or superstructure refers to the area of the crane:
a. above the turntable
b. below the turntable
c. in front of the boom
above the turntable
Side loading may be caused by:
a. starting or stopping the swing to rapidly
b. raising or lowering the load to rapidly
c. raising or lowering the boom to rapidly
d. increasing the load radius
starting or stopping the swing to rapidly
What is the best procedure to follow when underground utilities may be present?
a. set outriggers pads gently
b. contact local utility company
c. use blocking under outrigger pads
d. do not set outriggers, remain on tires
contact local utility company
Eccentric main boom tip reeving causes:
a. increased sheave wear
b. increased wire rope wear
c. twisting of the boom (IPT)
d. increased jib capacity
twisting of the boom (IPT)
How many randomly broken wires must there be to remove a running wire rope from service?
a. 12
b. 3
c. 5
d. 6
6
When lifting personnel in a man basket using 6 x 19 wire rope, the minimum safety factor is?
a. 3.5
b. 5
c. 7
d. 10
7
What is the safety factor required when using non-rotating wire rope and lifting personnel in a man basket?
a. 3.5
b. 5
c. 7
d. 10
10
Who has the responsibility for determining the correct weight of a load?
a. operator
b. owner
c. supervisor
d. surveyor
supervisor
When working near powerlines when is a signal person required?
a. when crane moves within 10 ft of powerlines
b. when crane moves within 15 ft of powerlines
c. when crane moves within a booms length of powerlines
d. when crane moves within a jibs length of powerlines
when crane moves within a booms length of powerlines
When an operator leave the crane he must first:
a. put all dogs or pawls in, but you may leave load in air
b. put the load on the ground an put all dogs or pawls in
c. put all dogs or pawls in and lower boom to the ground
put the load on the ground an put all dogs or pawls in
If replacing the hoist line wire rope on a crane, how do you determine the size of type of wire rope to use?
a. drum lagging
b. sheave size
c. measure existing wire rope
d. use manufacturers operators manual or load chart
use manufacturers operators manual or load chart
After the crane has been checked out and before crane lift operations begin the crew should:
a. have lunch
b. have a pre-lift meeting
c. check the oil in the engine
d. inspect the cab for debris
have a pre-lift meeting
According to ANSI B30.5 personnel platform lifts should not be made with wing in excess of ?
a. 30 mph
b. 10 mph
c. 15 mph
d. 20 mph
15 mph
When is it safe to work closer than the allowable distance from powerlines?
a. when crane owner says lines are de-energized
b. when site supervision says lines are de-energized
c. when utility company says lines are de-energized
d. when lead engineer says lines are deenergized
when utility company says lines are de-energized
During setup how do you determine machine clearances (counterweight, boom, outrigger)?
a. utilize the machine and see if you hit something
b. measure for correct distances
c. guess
d. load chart
measure for correct distances
When operating a crawler crane what is the most unstable allowable quadrant of operation?
a. front
b. rear
c. side
d. corner
side
when operating a truck crane what is the most unstable allowable quadrant of operation?
a. front
b. rear
c. side
d. corner
side
what is not a good location for crane setup?
a. compacted fill
b. hard fil
c. above utilities
d. concrete
above utlities
When should a tagline be used?
a. when rotation of load would be dangerous
b. when raining and load is slippery
c. when only one signal person is required
d. never
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 breaks?
a. check pedal for the correct feel
b. rely on the superintendent to verify the brakes are functioning properly
c. make the lift and see what happens
d. lift the load off the ground and apply the brake
lift the load off the ground and apply the brake
What is the difference between an anti-two-block warning device and and anti-two-block prevention system?
a. warning device only warns, but prevention system will stop the operation
b. prevention system only warns, but warning device stops the operation
c. both are the same
d. both will warn and stop the dangerous operation
warning device only warns, but prevention system will stop the operation
Who gives the operator hand signals?
a. the foreman
b. the superintendent
c. the person assigned prior to the lift
d. anyone who is qualified
the person assigned prior to the lift
why use mats or cribbing?
a. to lift outriggers or crawler off the ground
b. to reduce ground pressure
c. for long boom cranes
d. to stop mud from entering crawlers
to reduce ground pressure
Tripping capacities of crawler cranes are based on what percentage of tipping?
a. 70%
b. 80%
c. 85%
d. 75%
75%
Should the load be applied when determining the proper boom angle?
a. yes
b. no
c. depends on lift conditions
d. only during critical lifts
yes
when should the operator use the run by the seat of the pants technique?
a. always
b. never
c. when not making a critical lift
d. only when making a critical lift
never
Load radius is the distance from the center of gravity of the suspended load to the :
a. center of rotation
b. center of gravity of the crane
c. tipping axis
d. hook rollers
center of rotation
why is the primary reason for using a boom extension?
a. increase load radius
b. decrease load radius
c. increase height
d. increase reach
increase height
what is the minimum design factor required for a right regular lay main, boom or auxiliary hoist rope?
a. 5
b. 3.5
c. 2.5
d. 7
3.5
when telescoping the boom section of an R/R, which section should be telescoped first?
a. first
b. doesn’t matter
c. largest
d. all sections should be telescoped equally
all sections should be telescoped equally
How does the operator determine if correct load chart is being used?
a. matching serial number
b. matching model number
c. matching manufactures code number
d. same manufacture
matching serial number
net capacity is equal to:
a. gross capacity minus capacity deductions
b. net load plus gross capacity
c. capacity deductions minus gross capacity
d. net load minus gross capacity
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?
a. 10,000 lbs
b. 20,000 lbs
c. 30,000 lbs
d. 40,000 lbs
40,000 lbs
When first arriving on the jobsite, the operator should first determine the condition of the :
a. cranes setup location
b. access roads
c. parking lot
d. headache ball
access roads
How does the operator verify the LMIs boom length or load radius reading?
a. actual measurements
b. no need to verify
c. calibrate the LMI
d. check with superintendent
actual measurements
IF the rated capacity of the crane is above the solid line or within the shaded areas or has a asterisk next to it , this means the capacity is based on:
a. 75% of structural competence
b. structural competence
c. 85% of tipping
d. tipping
structural competence
all hazards and potential problems should be discovered during the:
a. pre-lift site inspection
b. actual lift operation
c. daily safety meeting
d. coffee break
pre-lift site inspection
How many broken wires must be present in one stand of one lay for running wire rope to be removed from service?
a. 3
b. 4
c. 2
d. 6
3
in a range diagram, boom length and angle can be used to determine:
a. load weight
b. load radius
c. counterweight requirements
d. net capacity
load radius
When making a multiple crane lift it is important for the operator to understand that:
a. the weight is equally distributed at all times
b. the weight is never equally distributed
c. the weight may increase if the other crane lands the load
d. the weight may decrease if the other crane lands the load
the weight may increase if the other crane lands the load
If a crane is not setup level and the operator swings a load from the high side to the low side the load radius will :
a. decrease
b. stay the same
c. increase two feet for every one degree out of
d. increase
increase
most crane manufacturers reduce load capacity for duty-cycle operations because:
a. the maximum load is almost always known
b. dynamic loads are not encountered
c. side loading forces may occur
d. the outward swing of the load decrease the load radius
side loading forces may occur
on whos recommendations should a preventative maintenance program be setup:
a. master mechanic
b. crane operator
c. company supervisor
d. crane manufacturer
crane manufacturer
what is the standard rope used on most cranes?
a. right regular lay
b. right alternate lay
c. left regular lay
d. non-spin
right regular lay
The proper way to calibrate a boom angle indicator is:
a. use a protractor
b. boom up against the stops and set the indicator at 90 degrees
c. using a level, raise the boom to horizontal and set the indicator to 0 degrees
d. call the company’s mechanic
using a level, raise the boom to horizontal and set the indicator to 0 degrees
The red area of a instrument gauge means:
a. caution should be taken
b. machine needs maintenance
c. everything is normal
d. a dangerous condition exists
a dangerous condition exists
The best way to keep people from being injured from the counterweight of the crane is to:
a. blow the horn when swinging
b. paint counterweight with a bright orange
c. use danger signs
d. fence or barricade the swing area
fence or barricade the swing area
Only approved attachments or extra counterweights made by the manufacturer should be placed on the rear of crane because:
a. they could cause a backward stability problem
b. the crane will develop a swing problem
c. the swing clearance will increase
d. the ground pressure will increase
they could cause a backward stability problem
what is the first thing an operator should do before going under a low pipe rack?
a. put the swing lock on
b. blow the horn
c. check to see what is in the pipe
d. post a signal person to check clearance
post a signal person to check clearance
When working on outriggers, the only time they should be less than fully extended is when:
a. working along side the highway and cannot block a lane
b. you are handling light loads
c. the main boom is being lifted
d. there is a load chart for this operation
there is a load chart for this operation
When lifting loads from the water, the operator should be aware that:
a. the current can change and cause the crane to tip
b. the brakes on the crane could get wet and slip
c. a dynamic load can occur
d. the load will increase when you pick the load from the water
the load will increase when you pick the load from the water
what is required to be on a hydraulic crane in order to lift a man basket?
a. boom length indicator
b. radio communication
c. free fall capability
d. two operators
boom length indicator
when working on rubber, cranes are rated at what percentage of tipping?
a. 70
b. 75
c. 80
d. 85
75
when using cable or nylon spreaders it is important to remember:
a. the spreader angle does not affect tension
b. the lower the spreader angle the greater the tension
c. the higher the spreader angle the greater the tension
d. the lower the spreader angle the lesser the tension
the lower the spreader angle the greater the tension
Backward stability of a crane is tested with:
a. basic boom at maximum angle with maximum load
b. maximum boom at maximum angle with maximum load
c. basic boom at minimum angle with no load
d. basic boom at maximum angle with no load
basic boom at maximum angle with no load