CHAPTER 18 SAMPLE QUIZ QUESTIONS
18.1. The principal hazard of mushroomed heads on hand-held impact tools is
a. the tool may break in two
c. the mallet may glance off and strike the worker’s hand
d. the tool may fly from the worker’s hand
ref. p. 478
18.2. During structural steel assembly, the use of 1/2 inch wire rope
approximately 42 inches high is permitted in lieu of standard guardrails.
18.3. Which of the following is the most important cause of construction
fatalities?
b. powder-actuated tools
c. oxygen deficiency
d. explosions
ref. p 503
18.4. Identify the three principal hazards of hydraulics over pneumatics.
2. electrical conductivity
3. fire
ref. p. 478-479
18.5. Identify the principal hazard of pneumatics over hydraulics.
18.6. Which of the following is a hazard of pneumatics over hydraulics?
a. high pressure
b. electrical conductivity
c. fire
ref. p. 479
18.7. Which of the following is not a hazard of hydraulics over pneumatics?
a. high pressure
b. electrical conductivity
c. fire
ref. p. 479
18.8. Hydraulic fluids used in aerial lifts around energized lines are required to
be fire resistant.
18.9. Hydraulic fluids used in aerial lifts around energized lines are required to
be of the insulating type.
18.10. Hydraulic fluids for general construction equipment are required to be of
the insulating type.
18.11. Hydraulic fluids for general construction equipment are required to be fire
resistant.
18.12. Powder-actuated tool cartridges are available only in a single power
rating.
18.13. What is the general construction area minimum lighting standard?
18.14. The general construction area minimum lighting standard is
a. 3 foot-candles
c. 10 foot-candles
d. 20 foot-candles
ref. p. 473
18.15. The general construction area minimum lighting standard is
b. 10 foot-candles
c. 15 foot-candles
d. none; there is no general lighting standard for construction sites
ref. p. 473
18.16. According to the text, when does a building floor usually bear its heaviest
load?
18.17. What frequency is required for inspection of rigging on construction sites:
a. annually
b. monthly
c. weekly
ref. p. 473
18.18. What frequency is required for inspection of rigging on construction sites:
b. weekly
c. monthly
d. none specified
ref. p. 473
18.19. The heaviest load a floor will probably ever support is the stacked
materials used during its own construction.
18.20. Rigging equipment on construction sites is required to be inspected prior
to use on each shift.
18.21. Rigging equipment on construction sites is required to be inspected
monthly.
18.22 Enclosed chutes are needed for dropping materials from distances of
greater than 20 feet.
18.23. Enclosed chutes are needed for dropping materials from distances greater
than 20 feet .
ref. p. 473
18.24. Construction standards are specific about when hardhats are required.
18.25. Hearing protection is required for general industry but not for construction
sites.
18.26. The greatest concern for construction workers’ eyes is for mechanical
injury.
18.27. The greatest concern for construction workers’ eyes is for exposure to
lasers.
18.28. Lasers are used as tools for checking steel girder alignment and deflection
in bridges and buildings.
18.29. Why might construction workers checking steel girder alignment need eye
protection?
18.30. On the bases of both fatalities and injuries, the greatest hazard to
construction workers is probably
a. electrocution
c. vehicle or construction equipment rolling over
d. getting run over by a vehicle or construction equipment
ref. p. 474
18.31. Falls are probably the greatest hazard in construction work.
18.32. In the diagram identify which part is the lifeline and which is the lanyard:
18.33. What is the safety factor used for safety belt hardware tensile strength?
b. 5
c. 10
d. 20
ref. p. 476
18.34. Besides strength, why is nylon a preferred material for lanyards?
18.35. What other hazard besides drowning is of concern for construction
workers who might fall into water?
18.36. Which of the diagrams show compliance with the OSHA standard for
lanyard length?
a. a
b. b
d. neither a nor b
ref. p. 476
18.37. What is the name of the knot shown in the diagram?
18.38. What is the purpose of the knot shown in the diagram?
18.39. What is the minimum tensile strength specified for safety belt hardware?
a. 1000 lbs
b. 2000 lbs.
d. 5000 lbs.
ref. p. 476
18.40. Drowning hazards are taken very seriously in federal standards.
18.41. Drowning hazards are not addressed in federal standards.
18.42. Even an ordinary garden hose may be used in place of fire extinguishers
on construction sites.
18.43. Garden hoses are prohibited as substitutes for fire extinguishers on
construction sites.
18.44. The biggest problem with fire prevention during construction is the
handling of flammable liquids.
18.45. The biggest problem with fire prevention during construction is the hazard
of waste lumber fires.
18.46. The principal hazard of mushroomed heads is
b. hand injuries
c. loss of hearing
d. atomic radiation
ref. p. 478
18.47. The purpose of the device in the picture is to
a. reduce compressed air pressure to less than 30 psi for cleaning
purposes
b. regulate flow in one direction only (check valve)
d. act as a coupler
ref. p. 478-479
18.48. What is the principal drawback of the device pictured?
18.49. The device pictured is best characterized as a
a. check valve
c. pressure regulator
d. coupling
ref. p. 478
18.50. Why do workers remove the device pictured?
a. to increase the horsepower
c. to engage in horseplay
d. none of the above
ref. p. 478
18.51. Powder-actuated tools are prohibited for concrete and masonry.
18.52. What two metals are used for cartridges for powder-actuated tools?
18.53. For what type of tool does the table apply?
18.54. For what type of tool does the table apply?
a. pneumatic tools
b. hydraulic tools
c. machine tools
ref. p. 480
18.55. For which of the following materials are powder-actuated tools prohibited?
a. concrete
b. steel
c. masonry
d. all of the above
ref. p. 479
18.56. Which metal indicates a heavier load?
a. brass
b. nickel
ref. p. 480
18.57. Which of the following indicates the heaviest powder charge?
a. nickel with red
c. brass with red
d. brass with purple
ref. p. 480
18.58. Which of the following indicates the heaviest powder charge?
a. brass with purple
b. nickel with gray
d. nickel with red
ref. p. 480
18.59. Which of the following indicates the lightest powder charge?
a. brass with purple
b. nickel with gray
d. brass with brown
ref. p. 480
18.60. What is the full name for a GFCI?
18.61. A principal drawback of an assured equipment grounding conductor
program is so-called “nuisance tripping”.
18.62. A good grounding conductor can provide protection similar to the GFCI.
18.63. Economic impact analyses have shown what system to be a cheaper
alternative to GFCIs?
18.64. On construction sites incandescent bulbs
a. must be guarded
c. must be equipped with a GFCI
d. are prohibited
ref. p. 481
18.65. Molded or vulcanized splices are permitted in flexible cord.
18.66. Molded or vulcanized splices are prohibited in flexible cord.
18.67. Home-made ladders used in construction are illegal.
18.68. For what application are filler blocks an acceptable alternative to inset
cleats?
18.69. Filler blocks are used on ladders to
b. stop cracks
c. strengthen side rails
d. reduce spalling
ref. pp. 482-483
18.70. What is the acceptable alternative to insetting the cleats on job-made
ladders?
18.71. What is the acceptable alternative to using filler blocks to brace the cleats
on job-made ladders?
18.72. A home-made ladder uses 2×4 lumber for the siderails and cleats. The
cleats are nailed to the siderails. How should this ladder be modified to
meet safety standards?
18.73. The design safety factor for scaffolds is:
a. 3
c. 5
d. 6
ref. p. 482
18.74. The design safety factor for scaffold suspension ropes is
a. 3
b. 4
c. 5
ref. p. 482
18.75. Which of the following is not a type of scaffold?
a. window-jack scaffold
b. outrigger scaffold
d. chicken ladder
ref. p. 483
18.76. What is the hazard of using concrete blocks for “cribbing?”
18.77. Cornice hooks are an alternative to tiebacks.
18.78. Tiebacks are
a. an alternative to cornice hooks
c. asking for trouble when they cross an entire roof
d. none of the above
ref. p. 484
18.79. Indicate scaffold plank overhand specifications by drawing a sketch.
18.80. Specified scaffold plank overhang is
b. more than specified overlap
c. illegal
d. none of the above
ref. p. 484-485
18.81. Pan-type treads are hollow
a. to make them light-weight
c. after completion of the job
d. none of the above
ref. p. 485
18.82. Safety belts and lifelines for personnel on suspended swinging scaffolds
must be tied to the building, not to the scaffold.
18.83. Safety belts and lifelines for personnel on suspended swinging scaffolds
must be tied to the scaffold, not to the building.
18.84. Hollow pan-type treads are filled on-site with concrete or other materials.
18.85. Which of the following can lead to two-blocking?
a. hoisting the load
b. extending the boom
c. lowering the load
e. none of the above
ref. pp. 485
18.86. Which of the following does not lead to two-blocking?
b. hoisting the load
c. lowering the load
d. extending the boom
ref. pp. 485 and 487
18.87. Which of the following does not lead to two-blocking?
a. hoisting the load
b. lowering the load
c. extending the boom
ref. pp. 485
18.88. Most of the fatalities resulting from two-blocking have occurred in the
construction industry.
18.89. Two-blocking results from
a. insufficient clearance at the rear of the crane cab
b. riding the headache ball
d. adding a block (pulley)to the load block to create a mechanical
18.90. Riding the headache ball is expressly prohibited by OSHA
18.91. The hazard of riding the headache ball is that it
a. can lead to two-blocking
b. can overstress the crane boom
c. is expressly prohibited by OSHA
ref. p. 487
18.92. Construction workers are forbidden from crawling out onto the horizontal
jib of a hammerhead tower crane.
18.93. Why is the length of tag lines limited when used with helicopters?
18.94. Required crane clearances from power lines is less during transit than
during crane operation.
18.95. How is the Failsafe Principle of Redundancy applied to helicopter cargo
hooks?
8.96. Which of the following is not a hazard when helicopters are used for
lifting?
a. cargo hook will not release
c. fire on the ground
d. static electricity
ref. pp. 489 & see also pp. 482-483 for irrelevance of “filler blocks.”
18.97. Pictured is a
b. wrecking ball
c. two-block
d. tube lock
ref. p. 488
18.98. It is permissible to move personnel on a material hoist.
18.99. Movement of personnel on a material hoist is prohibited.
18.100. Movement of material on a personnel hoist is prohibited.
18.101. The text mentions an electrical interlock on a personnel hoist. What is its
purpose?
18.102. An “articulating” boom
b. is hydraulically extensible
c. both of the above
d. none of the above
ref. p. 490
18.103. What is the full name for ROPS?
18.104. What hazard is a ROPS system intended to defeat?
b. runovers
c. runaways
d. ramps
ref. p. 490
18.105. Which of the following pieces of construction equipment are exempt from
requirements for ROPS?
a. wheel-type agricultural tractors
c. motor graders
d. rubber-tired, front-end loaders
ref. p. 490
18.106. The dynamic test
b. is required in addition to the static test for ROPS
c. is mandatory in lieu of a static test for ROPS
d. none of the above
ref. p. 491
18.107. The dynamic test for ROPS is to roll the vehicle over in the field.
18.108. The field test for ROPS employs a 2-ton (more specifically, a 2000-kg)
pendulum.
18.109. ROPS are an acceptable alternative to seat belts.
18.110. Backup alarms on construction vehicles are
a. prohibited
b. an administrative control
d. none of the above
ref. p. 492
18.111. All trenches are excavations.
18.112. OSHA’s special emphasis upon trenching and excavation cave-ins has
resulted in no significant reduction in fatalities.
18.113. OSHA’s special emphasis upon trenching and excavation cave-ins has
resulted in an impressive reduction in fatalities from this hazard source.
18.114. The greatest angle above the horizontal plane at which a material will lie
without sliding is called the
b. angle of declination
c. failsafe angle
d. none of the above
ref. p. 493
18.115. Which of the following increases the hazard of cave-ins?
a. rain
b. vibration from street traffic
c. freezing/thawing of soil
e. none of the above
ref. p. 495
18.116. Which of the following is a hazard with helicopters used as cranes?
a. tag lines drawn up into rotors
b. static electricity
c. fires on the ground
e. none of the above
ref. p. 489
18.117. ROPS are intended to prevent which category of the most frequent
causes of construction fatalities?
18.118. In the text a tragic construction accident was described in which 50
workers fell to their deaths. What type of structure was under construction
in this accident?
18.119. In construction, safety belt lanyards are required to be no longer than:
a. 6 feet
b. 12 feet
c. 25 feet
ref. p. 476
18.120. The text describes a dramatic lesson in safety learned from the historic
construction of the Golden Gate Bridge. What was that lesson? Describe
in general what happened. (It is not necessary to remember the exact
numbers involved; just describe the situation in general.)
18.121. The purpose of concrete rebar caps is
a. to prevent forms kick-out.
c. to cap the flow of the concrete above the rebar.
d. to improve the strength of the poured wall or other structure.
ref. pp. 497-498
18.122. Vibrating equipment used on freshly poured concrete can lead to
b. impalement of concrete workers.
c. the angle of repose.
d. uneven distribution of the rebar.
ref. pp. 497-498
18.123. OSHA prohibits the use of temporary guardrails.
18.124. For a standard 42-inch guardrail, a 200 pound horizontal force applied at
the top of the guardrail imparts which of the following counterbalancing
forces at the bottom of the stanchion offset from the pivot point by 3.75
inches?
a. 40 pounds
b. 200 pounds
c. 240 pounds
ref. p. 475
18.125. When a temporary guardrail is used properly, it is possible for the
stanchion base to be required to withstand a ton of counterbalancing
force.
18.126. A ton of force applied to the stanchion base of a temporary guardrail
indicates that the horizontal force applied to the top of the guardrail exceeds
OSHA limits.
18.127. A stanchion base for a temporary guardrail that can withstand a ton of
force to counterbalance a side load at the top of the rail can lead to a false sense
of security.
18.128. OSHA limits anchoring forces for guardrail stanchions to one ton.
