MSTE Flashcards
COSH 1
In demolition safety, this control is characterized by ensuring separation between the public and the demolition activities.
Elimination
Which control is demonstrated by the use of power shears, in place of grinding or oxy-acetylene cutting, where there is a risk of fire?
Substitution
Installation of scaffolds, platforms, guardrails, shoring and bracing to support loads are examples of this type of risk control.
Engineering Control
This type of risk control includes limiting the amount of time a person is exposed to a particular hazard, implementing safe working procedures for all hazardous tasks, and training all personnel.
Administrative Control
Primary cause of accident that is characterized by the human action that departs from a standard or written job procedure or common practice, safety rules, regulations, or instructions.
Unsafe Act
The physical or chemical property of a material, machine or the environment which could result in injury to a person, damage or destruction to property or other forms of losses.
Unsafe Condition
A risk associated with poorly guarded or dangerous equipment and machinery that may cause injury.
Safety Hazard
A risk associated with exposure to dangerous substance or conditions that may cause illness/disease.
Health Hazard
An engineering control or PPE set that protect you after you fall which is characterized by stopping the fall before you hit the surface like net/mesh and/or body harness.
Fall arrest system
An engineering control or set of PPEs prevents you from falling like guardrails, covers, restraints, etc.
Fall protection system
A formal process to identify the dangers of specific job tasks in order to reduce the risk of injury to workers. It involves breaking down the steps of performing a job, identifying hazards at each step, and creating controls to keep workers safe while performing that task.
Job hazard analysis
A formal process to identify potential hazards related to an activity or operation, analyze the level of risk associated with those hazards, and propose controls to reduce the level of risks.
HIRAC Hazard Identification, Risk Assessment and Control
This is the vertical member of shoring and timbering which directly resists pressure from side of an excavation.
Sheathing
It is the longitudinal member of shoring and timbering which directly resists pressure from sheathing.
Wale
It is the transverse member of shoring and timbering which directly resists pressure from sheathing or wales.
Strut
A general term used to describe a temporary structure of timber or metal work with a platform used in the construction, alteration, or demolition of a building, or other maintenance work used to support workers or to allow the hoisting and lowering of workers, their tools, and materials.
Scaffolds
A scaffold hanging by means of ropes or chains capable of being lowered or raised by winch, pulley, block, or such other means.
Suspended scaffold
A platform supported by a single row of uprights or standards tied along the wall, connected horizontally by a ledger, and supporting putlogs which rests on ledger on one side and in holes left in walls on the other.
Single scaffold
A platform supported on two rows of uprights or standards parallel to the wall of a building connected by horizontal ledgers and is independent from the building wall.
Double scaffold
It is the vertical member of scaffold transmitting the load to the ground or to a base plate.
Standard/Upright
A scaffold bracing, which extends horizontally from standard to standard forming right angles with the putlogs and forms a tie between the standards.
Ledger/Stringer
A scaffold member spanning between a ledger and a building wall or between two ledgers upon which the platform rests.
Putlogs/Bearer
A scaffold member that holds standards or uprights in a fixed position to prevent any lateral movement.
Brace
What scaffolding materials shall be used at heights over 20 meters?
Structural metal
In the OSH standard, workrooms shall be at least how many meters in height from the floor to the ceiling?
2.7
Where the rooms are air-conditioned, and the process allows free movement; existing heights of not less than how many meters may be allowed?
2.4
The maximum number of persons employed in a workroom area shall not exceed one person per how many cubic meters?
11.5
What is the maximum number of persons allowed to work in a 4.6 m by 7.5 m workroom with a 4 m clear height?
9
The minimum width of passageways between machinery or equipment should not be less than how many meters?
0.60
According to the OSH standard, standard railings shall be at least how many meters from the floor level to the upper surface of the top rail.
1.00
What is the maximum spacing of posts in a standard railing?
2.0
For pipe railings, the top rails and posts of metal pipes should be at least how many millimeters in diameter?
30 mm
All stairs, platform, and landings shall be of sufficient strength to sustain safely a live load of not less than 490 kg/m2 with what factor of safety?
4
According to OSH standards, this shall be the minimum width of stairs (including handrails).
1.10
This is the minimum width of stairs without the handrails.
0.90
Which of the following stairway slope (H:V) fits the criteria defined in the OSH standards for stair pitch?
1.5:1
Which of the following pitch qualifies for ramp installation?
3:1
What is the maximum clear height between stairway landings?
3.6 m
According to OSH standard, headroom shall be provided at all points in the stairwell, what is the minimum vertical clearance from the top of the tread in line with the face of the riser?
2.0 m
This is the minimum dimension of treads (exclusive of nosing and projections).
25 cm
The riser should have a maximum height of how many meters?
20 cm
What is the maximum pitch (slope) for a fixed ladder?
90°
For a fixed ladder used to ascend height of more than 20 meters, at what height should landing be provided?
6th, 12th, and 18th meter
In excavation safety, adequate shoring and timbering to prevent collapse shall be provided for excavation of depth more than how many meters?
1.00
Adequate shoring and timbering to prevent collapse shall be provided for excavation depth of over 1.0 meter except:
excavation in which workers are not required to enter, excavation with walls sloped to 45° or at angle of repose, excavation cut in solid rock
At what excavation depth should the services of a Structural engineer for the design of the excavation be required?
Over 6.6 meters deep
Tools or materials shall be kept a minimum of how many meters away from the edge of the excavation to prevent them being knocked down into the excavation?
1.0
At what minimum distance from a 9-meter-deep excavation should a vehicle or other machinery be driven, operated, or located (measured from the edge of the excavation)?
3.0
Open excavation of over 1 m. deep shall be provided with what in case of flooding or collapse of the excavation work?
Ingress and egress
How many ladders shall be provided for a 60 – meter - length excavation as means of access and/or exit?
4
The ladder provided as ingress/egress in an excavation shall extend at least how many meters above the top of the excavation to provide a firm handhold when stepping on or off the ladder?
0.83 m
Timber/bamboo scaffoldings shall be limited to a height of how many meters from the ground or base
20 m
In the construction of timber scaffolds, the size of the standard shall not be less than 8.9 cm. (3 in.) in diameter or its equivalent and when it is necessary to extend a standard, the overlaps shall not be less than how many meters?
0.60 m
In scaffolds platform for painters, decorators, and similar types of workers, when the platform is not more than 2 m. (6 ft.) above the ground floor, what is the minimum width of the platform?
30 cm
For platforms used by men, tools, and materials that is more than two 2 m. (6 ft.) above the ground or floor, the minimum platform width is:
1.0 m
Fall protection equipment shall be required when working at what minimum height?
2.0 m
At what height shall workers be required to use fall arrest equipment?
Over 10 m
In a pitch of more than 45°, what should be provided instead of stairs?
Fixed ladder
