Questions and Answers
to Sample Questions
1. What action does a signal person intend the operator
to perform if he extends his arm at shoulder height, makes
a fist with his hand, and sticks his thumb up?
a. Boom down
c. Boom up
d. Telescope out
2. Within what percentage of level does a telescopic boom
crane have to be for the gross ratings in the load chart
to remain valid?
d. It doesn’t matter so long as the outriggers are
fully extended and set
3. The load line of the crane you’re operating comes
into contact with an energized power line. There’s
no sign of any other danger, such as fire. In such a situation,
a. Climb down carefully from the crane cab
b. Jump down, feet together
c. Stay in the cab until the lines are de-energized
d. Get as far away from the crane as possible
4. You’re setting your crane up in
a confined area and you cannot fully extend your fourth
crane does not have a load chart for intermediate extension
In such a situation you should use the capacities in the:
a. on-outriggers load chart
b. on-rubber load chart
c. on-outriggers load chart while being careful not to swing
the load over the short outrigger
d. on-outriggers load chart, after shortening all outriggers
to the same length as the fourth (short) outrigger
5. According to the B30.5 mobile crane standard, how many
randomly distributed broken wires in rotation-resistant rope
are cause for considering replacement of the rope?
a. 1 broken wire in 6 rope diameters
b. 2 broken wires in 30 rope diameters
c. 3 broken wires in one strand in one lay
d. 2 broken wires in 6 rope diameters
6. Unless the manufacturer states otherwise, the net capacity
of a crane on main boom is the capacity listed in the load
a. minus the weight of the rigging and all attachments
b. plus the weight of the rigging and all attachments
c. minus the weight of the rigging and all attachments not
d. minus the weight of the rigging alone
7. Unless the operator takes account of boom deflection,
when lifted off the ground, a properly rigged load may:
a. swing out away from the crane
b. swing in towards the crane
c. raise absolutely vertically
d. shift in its rigging
8. Which is the most common cause of death to crane operators?
b. Falls from the crane getting on and off
c. Crane turnover
9. According to the B30.5 mobile crane
OK for an operator to leave the cab of a crane with the
engine running so long as:
a. the operator keeps the crane in view and restricts access
to the area around the crane
b. the operator has at least four years experience
c. the crane is equipped with a fire extinguisher
d. it’s never OK
10. An operator should respond to a "stop" signal
a. appointed signal person only
b. project manager only
c. superintendent only
11. Unless the manufacturer states otherwise, truck cranes
generally have no lifting capacity over which area?
a. the side
b. the rear
c. the front
d. the outriggers
12. "Working radius" is defined
as the distance from the:
a. base of the boom to the center of the load
b. front of the crane to the center of gravity of the load
c. center of rotation of the crane to the center of the load
d. center of rotation of the crane to the center of gravity
of the load
13. If a bold line is shown on a load chart, the capacities
below the line:
a. are based on the structural strength of the crane
b. must not be used
c. are based on the stability of the crane
d. should only be used if the crane is set up on outriggers
14. Rough terrain crane capacities are generally greater
c. right side
d. left side
15. According to federal requirements, under what conditions
is it OK for a person to ride the headache ball?
a. when there is no other way to gain access
b. when the lift has been approved by an engineer
c. when other means would be more dangerous
d. it is never OK
16. On duty cycle operations, such as skipping concrete,
most manufacturers require a crane's load chart capacity
to be reduced by:
17. Boom length is measured from the:
a. base of the boom to the center of the boom tip sheave.
b. boom hinge pins to the boom tip.
c. boom hinge pins to the center of the boom tip sheave.
d. base of the boom to the boom tip.
18. Using the preferred method of installing wire rope from
a reel onto a hoist drum, the rope runs from the:
a. top of the reel to the bottom of the drum.
b. bottom of the reel to the top of the drum.
c. top of the reel to the top of the drum.
d. There is no preferred method.
19. Truck crane capacities are usually greater over the:
c. front right outrigger.
20. A truck crane is set up on outriggers. The part of the
load chart governed by stability is based on what percentage
of the crane's capacity?
21. According to OSHA, accessible areas of the operating
crane must always be barricaded within:
a. the swing radius of the crane
b. the carbody or chassis
c. the swing radius of the rear of the rotating superstructure
d. the distance between the carbody or chassis and the boom
22. What is the OSHA regulation governing cranes in construction?
23. A crack in the windshield of a crane cab is OK so long
a. it causes no visible distortion that would interfere
with safe operations
b. it is less than 6 inches long
c. the windshield is replaced on the next annual inspection
d. it is never OK
24. OSHA permits hoisting of personnel by crane so long
a. the prevailing wind speed is less than 35 mph
b. there is no less hazardous or practicable way
c. all personnel have CPR training
d. no aerial work platform is available
25. A crane is set up with 3 of its 4 outriggers fully extended
and the fourth retracted. Unless the manufacturer states
otherwise, the capacity of the crane in this configuration
will be found in the:
a. on-outrigger chart
b. on-rubber chart
c. on-outrigger chart minus 20%
d. on-rubber chart plus 20%
26. When lifting personnel, the total weight of the loaded
personnel platform must not exceed what percentage of the
rated capacity of the crane?
27. Side loading of crane booms is permitted:
a. when the operator says it's OK.
b. so long as no jib is installed.
c. only when the outriggers are fully extended.
d. only with freely suspended loads.
28. If the operator makes two audible signals when moving
a crane, he/she intends to:
b. back up.
c. go ahead.
d. stop (emergency).
29. If a crane's load moment indicator (LMI) malfunctions,
the operator should:
a. cease crane operations and report the condition to the
b. turn it off and continue as if the LMI were not installed.
c. make mathematical allowances for any error.
d. attempt to repair the fault.
30. Blocking (cribbing) may be placed under outrigger beams:
a. when beams cannot be extended all the way out.
b. to increase capacity.
c. to improve stability.
31. Timber blocking placed under the tips of the tracks
on a crawler crane will:
a. increase the permitted capacity of the crane
b. make the crane more stable
c. reduce the capacity of the crane
d. make the crane less stable
32. If a load test is done on a repaired crane, the load
must not exceed what percentage of the manufacturer's crane
33. When handling boom sections, the best place for slings
to be attached is:
a. at the pin connection points at the ends of the top chords
b. at the lattice members
c. anywhere on the top chords
d. at the pin connection points at the ends of the bottom
34. The tipping axis of a crawler crane:
a. is always at the centerline of the idler or sprocket
b. depends if the idler or sprocket are in line or offset
from the track rollers
c. is through the centerline of the crane cab
d. is through the boom butt section
35. Materials placed under overhead energized power lines
a. be dragged out
b. lifted as normal
c. not be lifted by crane
d. handled with extra care
36. The hand signal depicted is instructing the operator
a. boom up
b. boom down
c. telescope in
d. hoist up
37. When working at ground floor level near a cellar wall,
the crane's outrigger pads or tracks should be placed:
a. as close as possible to the wall
b. at least as far back as the depth of the wall below ground
c. at a distance at least half the depth of the cellar wall
d. anywhere, since the wall is unaffected by the weight of
38. When setting a crane up on outriggers, the wheels of
the crane should:
a. just touch the ground
b. be as high as possible off the ground
c. be just high enough off the ground to relieve the tires
of crane weight
d. stay firmly on the ground to support the crane
39. If you move a crawler crane from soft ground to harder
ground, ground bearing pressure will:
b. decrease by a third
c. remain the same
d. decrease by half
40. Rotation-resistant rope can be used with a swivel:
c. if the rope manufacturer approves
d. if the operator decides it’s OK
41. On pick and carry operations, you should:
a. keep the boom as short as possible
b. keep the load as high above the ground as possible
c. ensure the load is as far from the carrier/carbody as
d. use maximum boom length
42. On a crawler crane, ground bearing pressure is greatest:
a. over the right side
b. over the end
c. over the corner
d. over the left side
43. When preparing to hoist a light load, the hook should
a. slightly to the side you're planning to swing to
b. slightly to the side opposite you plan to swing to
c. directly above the load's center of gravity
d. above the edge of the load closest to the crane
44. According to ASME B30.5, when working around power lines
of more than 750kV, how much clearance is generally required
from any part of the crane and its load?
a. 35 ft.
b. 30 ft.
c. 45 ft.
d. 25 ft.
45. You plan to pick a load you are told weighs 36,500 lbs.
Line pull on the crane you are operating is 9,000 lbs. How
many parts of line will you need?
46. If a jib is erected but not being used to lift the load,
you should make a deduction from the gross capacities listed
in the load chart based on:
a. the actual weight of the jib
b. the effective weight of the jib
c. nothing, since the jib is not in use
d. the difference between the crane's actual weight and its
47. When the boom length of the crane falls between the
lengths listed in the load chart, you should use the capacity
a. the next longest boom length
b. the next shortest boom length
c. a length estimated between the lengths in the chart
d. the next longest or the next shortest boom length, whichever
is the lower capacity
48. It's OK to temporarily bypass a crane's overload warning
a. when a supervisor tells you to
b. when the load to be lifted exceeds the capacity in the
d. during assembly/disassembly operations
49. On a crawler crane, the part of the load chart governed
by stability is based on what percentage of its capacity?
50. As you boom down, the leverage of the load on the crane
c. stay the same
d. depends on the weight of the load being lifted