Scaffold Study Guide Exam Questions
and Answers
positioning system - Answer-Which of the following is a system that limits a worker's fall
to only two feet and allows the worker to work with his or her hands?
intended use - Answer-Which of the following is the first piece of information that must
be gathered before the scaffold can be designed?
dead load - Answer-Which of the following is the calculated weight of all the scaffold
components?
live load - Answer-Which of the following is the calculated weight of workers, tools, and
materials?
10´-0˝ - Answer-Which of the following is the minimum clearance requirement for
insulated power lines with 300 Volts to 50 kV?
heel test - Answer-A qualified person performs which of the following to determine the
density of the soil?
contributory leg load - Answer-Which of the following is the total weight applied or
transmitted to a specific leg/standard
8 ft - Answer-Which of the following is the maximum platform span for a scaffold with a
medium-duty rating?
75 lbs per sq. ft - Answer-Which of the following is the maximum load for a scaffold with
a heavy-duty rating?
5 lbs per sq. ft - Answer-Platform weight was calculated by engineers and determined to
be which of the following?
plan view - Answer-Which of the following, also called a "bird's-eye view," is a two-
dimensional view that shows the view looking down on an object?
scale drawing - Answer-Which of the following is a drawing made to a size that is
different from the actual size of the object?
1/60 of its span - Answer-Which of the following is the maximum allowable deflection for
a wood plank?
6˝ - Answer-Which of the following is the minimum overhang of a scaffold plank that
extends over a bearer/transom?
, 4 to 1 - Answer-Which of the following is the correct rise to run ratio for an inclined
portable extension ladder?
integral prefabricated access frame - Answer-Which of the following scaffold frames has
a portion that has been specifically designed and constructed for use as an access
ladder?
plan brace - Answer-Which of the following is also known as a horizontal diagonal
brace?
positive tie - Answer-Which of the following secures the scaffold to a structure by
clamping, bolting, or welding it to provide stability and rigidity?
50-60 percent - Answer-A knot can reduce the breaking strength of a rope by which of
the following?
40-45 ft lbs - Answer-Most manufacturers recommend that _____ of torque be applied
to scaffold bolt clamps
Beam clamps - Answer-_____ should always be used in pairs.
Side-by-side clamps - Answer-_____ have a U-shape and are used to attach two
parallel components.
Beam clamps - Answer-_____ are used to secure a scaffold to a steel structure or as an
anchor point for a structure-supported scaffold
rust - Answer-Although not quite as strong as steel components, aluminum tubes are
lighter, more flexible, and resistant to
puncheon - Answer-A _____ is a vertical component that provides support but does not
contact the supporting surface
personal fall arrest systems or guardrail - Answer-On all scaffolds 10 feet or more in
height employees shall be protected by:
14" - Answer-On all scaffolds, according to OSHA, (except for plasters scaffolds), when
the distance between the face of the work and the scaffold platform edge exceeds
_________ an inside guardrail is required
6 - Answer-A scaffold with two bays will have at least _____ posts/standards
node points - Answer-The critical intersections where bearers/transoms,
runners/ledgers, or braces connect are called
and Answers
positioning system - Answer-Which of the following is a system that limits a worker's fall
to only two feet and allows the worker to work with his or her hands?
intended use - Answer-Which of the following is the first piece of information that must
be gathered before the scaffold can be designed?
dead load - Answer-Which of the following is the calculated weight of all the scaffold
components?
live load - Answer-Which of the following is the calculated weight of workers, tools, and
materials?
10´-0˝ - Answer-Which of the following is the minimum clearance requirement for
insulated power lines with 300 Volts to 50 kV?
heel test - Answer-A qualified person performs which of the following to determine the
density of the soil?
contributory leg load - Answer-Which of the following is the total weight applied or
transmitted to a specific leg/standard
8 ft - Answer-Which of the following is the maximum platform span for a scaffold with a
medium-duty rating?
75 lbs per sq. ft - Answer-Which of the following is the maximum load for a scaffold with
a heavy-duty rating?
5 lbs per sq. ft - Answer-Platform weight was calculated by engineers and determined to
be which of the following?
plan view - Answer-Which of the following, also called a "bird's-eye view," is a two-
dimensional view that shows the view looking down on an object?
scale drawing - Answer-Which of the following is a drawing made to a size that is
different from the actual size of the object?
1/60 of its span - Answer-Which of the following is the maximum allowable deflection for
a wood plank?
6˝ - Answer-Which of the following is the minimum overhang of a scaffold plank that
extends over a bearer/transom?
, 4 to 1 - Answer-Which of the following is the correct rise to run ratio for an inclined
portable extension ladder?
integral prefabricated access frame - Answer-Which of the following scaffold frames has
a portion that has been specifically designed and constructed for use as an access
ladder?
plan brace - Answer-Which of the following is also known as a horizontal diagonal
brace?
positive tie - Answer-Which of the following secures the scaffold to a structure by
clamping, bolting, or welding it to provide stability and rigidity?
50-60 percent - Answer-A knot can reduce the breaking strength of a rope by which of
the following?
40-45 ft lbs - Answer-Most manufacturers recommend that _____ of torque be applied
to scaffold bolt clamps
Beam clamps - Answer-_____ should always be used in pairs.
Side-by-side clamps - Answer-_____ have a U-shape and are used to attach two
parallel components.
Beam clamps - Answer-_____ are used to secure a scaffold to a steel structure or as an
anchor point for a structure-supported scaffold
rust - Answer-Although not quite as strong as steel components, aluminum tubes are
lighter, more flexible, and resistant to
puncheon - Answer-A _____ is a vertical component that provides support but does not
contact the supporting surface
personal fall arrest systems or guardrail - Answer-On all scaffolds 10 feet or more in
height employees shall be protected by:
14" - Answer-On all scaffolds, according to OSHA, (except for plasters scaffolds), when
the distance between the face of the work and the scaffold platform edge exceeds
_________ an inside guardrail is required
6 - Answer-A scaffold with two bays will have at least _____ posts/standards
node points - Answer-The critical intersections where bearers/transoms,
runners/ledgers, or braces connect are called
