STS-C Exam Question Set #1
questions well answered
For a fire to occur, an ignition source is required. Which of the following constitute an ignition
source?
I. Power tools
II. Radiant heat space heater
III. Arc welding
IV. Wood framing activities using hand tools only
V. Linseed oil soaked rags - correct answer ✔✔ All of the above
There are four classes of fires. Class C fires are: - correct answer ✔✔ Fires in wiring, fuse boxes,
energized electrical equipment, computers, and other electrical sources.
MIG and TIG welding incorporate a gas in the welding process. The gas introduces what hazard
to the work? - correct answer ✔✔ Ashpyxiation
Hazard determination in welding is accomplished by evaluating the: - correct answer ✔✔
Welding method and materials to be welded along with the physical location.
The potential difference between two points in an electrical circuit is measured in: - correct
answer ✔✔ Volts
The unit of measure of electrical current is: - correct answer ✔✔ Amps
A unit of measure of power is: - correct answer ✔✔ Watts
,The method commonly used for control of hazardous energy sources is referred to as: - correct
answer ✔✔ LOTO (Lock out/Tag out)
A supported scaffold consisting of a platform(s) resting on bearers, the outside ends of which
are supported on
runners secured to a single row of posts or uprights, and the inner ends of which are supported
on or in a structure or building wall is a: - correct answer ✔✔ Pole Scaffold
A rooftop supported scaffold consisting of a platform resting on angular-shaped supports is a: -
correct answer ✔✔ Roof Bracket Scaffold
A supported or suspended scaffold consisting of a platform(s) supported by tubing, erected with
coupling devices
connecting uprights, braces, bearers, and runners is a: - correct answer ✔✔ Tube and Coupler
Scaffold
A supported scaffold consisting of a platform supported by vertical poles and movable support
brackets is a: - correct answer ✔✔ Pump Jack Scaffold
A supported scaffold consisting of a platform resting on brackets attached to ladders is a: -
correct answer ✔✔ Ladder Jack Scaffold
A scaffold consisting of a platform(s) supported on fabricated end frames with integral posts,
horizontal bearers, and intermediate members is a: - correct answer ✔✔ Fabricated Frame
Scaffold
Construction workers who will work with and on scaffolds must be trained. Retraining is
required when: - correct answer ✔✔ Changes at the work site create conditions that change the
hazards and risks
,Cranes require frequent and periodic inspections. Frequent inspections required for cranes
include: - correct answer ✔✔ Daily pre-operational site and crane inspection, pre-start-up
inspection and crane operation inspection.
A total system of support for freshly placed or partially cured concrete, including the mold or
sheeting that is in contact with the concrete as well as all supporting members including shores,
hardware, braces, and related hardware is a: - correct answer ✔✔ Formwork
Lifting vertically a slab (or group of slabs) from one location to another during a lift-slab
construction operation is a: - correct answer ✔✔ Jacking operation
A method of concrete construction in which floor and roof slabs are cast on or at ground level
and, using jacks, are moved into position is a: - correct answer ✔✔ Lift Slab Method
Concrete members (such as walls, panels, slabs, columns, and beams) that have been formed,
cast, and cured prior to final placement in a structure are: - correct answer ✔✔ Precast
Concrete
The construction operation in which shoring equipment is placed, as the original forms and
shores are removed in order to support partially cured concrete and construction loads is called:
- correct answer ✔✔ Reshoring
Crossed bridging that is bolted to a steel joist or joists is: - correct answer ✔✔ Bolted Diagonal
Bridging
Steel joist bridging connected to a bridging terminus point is: - correct answer ✔✔ Anchored
Bridging
, An entity that has the overall responsibility for the construction of the project-its planning,
quality, and completion is the: - correct answer ✔✔ Controlling Contractor
The individual responsible for the design of structural steel framing and whose seal appears on
the structural contract documents in the: - correct answer ✔✔ Project Structural Engineer
Members pre-stressed before the application of the superimposed loads and having all cables
or tendons fully bonded to the concrete or grouted within ducts. - correct answer ✔✔ Category
1
As Category 1, but having the tendons left ungrouted. This type of construction can sometimes
be recognized from the access points which may have been provided for inspection of the
cables and anchors. More
recently, unbonded tendons have been used in the construction of beams, slabs, and other
member; these tendons are protected by grease and surrounded by plastic sheathing, instead
of the usual metal duct. - correct answer ✔✔ Category 2
Members that are pre-stressed progressively as the building construction proceeds and the
dead load increases, using bonded tendons, as Category 1. - correct answer ✔✔ Category 3
As Category 3, but using unbonded tendons, as Category 2. - correct answer ✔✔ Category 4
The action taken to free equipment from any electric connection and/or electric charge is
called: - correct answer ✔✔ De-energize.
The blasting operation by which the rock formation is dislodged from its natural location is
called: - correct answer ✔✔ Primary Blasting
The reduction of oversize material by the use of explosives to the dimension required for
handling is called: - correct answer ✔✔ Secondary Blasting
questions well answered
For a fire to occur, an ignition source is required. Which of the following constitute an ignition
source?
I. Power tools
II. Radiant heat space heater
III. Arc welding
IV. Wood framing activities using hand tools only
V. Linseed oil soaked rags - correct answer ✔✔ All of the above
There are four classes of fires. Class C fires are: - correct answer ✔✔ Fires in wiring, fuse boxes,
energized electrical equipment, computers, and other electrical sources.
MIG and TIG welding incorporate a gas in the welding process. The gas introduces what hazard
to the work? - correct answer ✔✔ Ashpyxiation
Hazard determination in welding is accomplished by evaluating the: - correct answer ✔✔
Welding method and materials to be welded along with the physical location.
The potential difference between two points in an electrical circuit is measured in: - correct
answer ✔✔ Volts
The unit of measure of electrical current is: - correct answer ✔✔ Amps
A unit of measure of power is: - correct answer ✔✔ Watts
,The method commonly used for control of hazardous energy sources is referred to as: - correct
answer ✔✔ LOTO (Lock out/Tag out)
A supported scaffold consisting of a platform(s) resting on bearers, the outside ends of which
are supported on
runners secured to a single row of posts or uprights, and the inner ends of which are supported
on or in a structure or building wall is a: - correct answer ✔✔ Pole Scaffold
A rooftop supported scaffold consisting of a platform resting on angular-shaped supports is a: -
correct answer ✔✔ Roof Bracket Scaffold
A supported or suspended scaffold consisting of a platform(s) supported by tubing, erected with
coupling devices
connecting uprights, braces, bearers, and runners is a: - correct answer ✔✔ Tube and Coupler
Scaffold
A supported scaffold consisting of a platform supported by vertical poles and movable support
brackets is a: - correct answer ✔✔ Pump Jack Scaffold
A supported scaffold consisting of a platform resting on brackets attached to ladders is a: -
correct answer ✔✔ Ladder Jack Scaffold
A scaffold consisting of a platform(s) supported on fabricated end frames with integral posts,
horizontal bearers, and intermediate members is a: - correct answer ✔✔ Fabricated Frame
Scaffold
Construction workers who will work with and on scaffolds must be trained. Retraining is
required when: - correct answer ✔✔ Changes at the work site create conditions that change the
hazards and risks
,Cranes require frequent and periodic inspections. Frequent inspections required for cranes
include: - correct answer ✔✔ Daily pre-operational site and crane inspection, pre-start-up
inspection and crane operation inspection.
A total system of support for freshly placed or partially cured concrete, including the mold or
sheeting that is in contact with the concrete as well as all supporting members including shores,
hardware, braces, and related hardware is a: - correct answer ✔✔ Formwork
Lifting vertically a slab (or group of slabs) from one location to another during a lift-slab
construction operation is a: - correct answer ✔✔ Jacking operation
A method of concrete construction in which floor and roof slabs are cast on or at ground level
and, using jacks, are moved into position is a: - correct answer ✔✔ Lift Slab Method
Concrete members (such as walls, panels, slabs, columns, and beams) that have been formed,
cast, and cured prior to final placement in a structure are: - correct answer ✔✔ Precast
Concrete
The construction operation in which shoring equipment is placed, as the original forms and
shores are removed in order to support partially cured concrete and construction loads is called:
- correct answer ✔✔ Reshoring
Crossed bridging that is bolted to a steel joist or joists is: - correct answer ✔✔ Bolted Diagonal
Bridging
Steel joist bridging connected to a bridging terminus point is: - correct answer ✔✔ Anchored
Bridging
, An entity that has the overall responsibility for the construction of the project-its planning,
quality, and completion is the: - correct answer ✔✔ Controlling Contractor
The individual responsible for the design of structural steel framing and whose seal appears on
the structural contract documents in the: - correct answer ✔✔ Project Structural Engineer
Members pre-stressed before the application of the superimposed loads and having all cables
or tendons fully bonded to the concrete or grouted within ducts. - correct answer ✔✔ Category
1
As Category 1, but having the tendons left ungrouted. This type of construction can sometimes
be recognized from the access points which may have been provided for inspection of the
cables and anchors. More
recently, unbonded tendons have been used in the construction of beams, slabs, and other
member; these tendons are protected by grease and surrounded by plastic sheathing, instead
of the usual metal duct. - correct answer ✔✔ Category 2
Members that are pre-stressed progressively as the building construction proceeds and the
dead load increases, using bonded tendons, as Category 1. - correct answer ✔✔ Category 3
As Category 3, but using unbonded tendons, as Category 2. - correct answer ✔✔ Category 4
The action taken to free equipment from any electric connection and/or electric charge is
called: - correct answer ✔✔ De-energize.
The blasting operation by which the rock formation is dislodged from its natural location is
called: - correct answer ✔✔ Primary Blasting
The reduction of oversize material by the use of explosives to the dimension required for
handling is called: - correct answer ✔✔ Secondary Blasting
