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77 Cards in this Set
- Front
- Back
What is the span that a handrail is required? |
920-1070mm |
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What is the maximum distance between vertical and horizontal anchor points if the scaffold has hoarding? |
3 meters both horizontally and vertically. |
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What is the minimum height of a toe board? |
140mm or 6 inches |
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What is a Tirfor and what does it do? |
A Tirfor is a hand-operated cable winch that allows you to move heavy equipment horizontally along an unlimited amount of wire rope |
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If you tie a knot into a rope, what does the tensile strength of the rope reduce by? |
50% |
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What do you place under a crane to stabilize it? |
Blocking |
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When is a tag line necessary? |
Always
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At what height is Fall Protection required? Imperial and Metric? |
3 metres or 10 Feet |
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Who is responsible for making sure that the fall arrest equipment is meant for the specific task? |
The employer is responsible for making sure the proper equipment is available. |
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Who is responsible for inspecting the Fall protection for wear and tear? How often should an inspection be done? |
Employee is responsible but the employer is responsible for making the employee do it. Inspected before each work shift or when user changes. |
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Is it safe to use fall protection that has stopped a fall? Why or why not? |
Yes if it has been returned to service via a professional engineer. No if it has not been reconditioned by engineer or manufacturer |
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True or False: Double step ladders are sometimes used in pairs to create a mini-scaffold? |
True, they can be used in pairs with extension plans or aluminum stages. |
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Extension ladders must extend vertically past the landing or parapet by how much? |
1m or approximately 3 rungs. |
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At what ratio is a Ladder supposed to be set up? |
Rise of 4 to a run of 1 4:1 |
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What is a type 1A ladder designed for and how much is it rated for? |
Type 1A is Extra Heavy-Duty and meant for Industrial Construction. It has a maximum load rating of 136kg |
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What type of ladder can is for Light Commercial work and can have a maximum load of 102kg? |
Type 2 ladder or Medium-Duty |
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You would typically find this type of ladder at home, which can hold how much? |
Type 3, 91kg. Must point out that many people are already over that weight limit. |
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Working in an power plant with lots of cables around, what material choice is best for your ladder and why? |
Fibreglass because it is electrically non-conductive and strong. |
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What is the Uniformly Distributed Load rating for a Light-Duty Scaffold? |
122kg/m2 |
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The scaffold must be able to support at LEAST how many times the load? |
Four times the load, or 1/4 the Breaking Point of the scaffold. |
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What is the difference between Elevated Working Platforms and Framed Scaffold Systems? |
Elevated working platforms are height adjustable, framed scaffolds are fixed height. |
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What can you use to secure the footing of the scaffold and what is it called? |
Mudslides typically have treated wood.
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Free-Standing scaffold maximum height is what? |
Three times the smallest dimension. |
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How many metres before you need to tie into the building vertically on a scaffold? |
4.6m Vertically |
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How many metres before you need to tie into the building horizontally on a scaffold? |
6.4m Horizontally |
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Who can erect a scaffold? |
Anyone that is competent. |
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If there is someone on a rolling scaffold, what is the maximum height that a person can stay on it while it is moved? |
Two times the smallest base dimension. |
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What can you use to make the the base a wider dimension to provide the ability to build taller? |
Outriggers can increase the base dimension. |
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At what height is a toe board required? |
3.5 Metres or more from the ground |
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What is an intermediate rail and where is it placed? |
An intermediate rail (mid-rail) is placed between the handrail and the deck of the scaffold |
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What is a Node Point? |
Where the Standard and the Transom meet. |
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What is a transom? |
Horizontal beam between the Standards to support the working platforms. |
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What is a standard? |
Vertical supporting members that support compression loads. |
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What is the distance between two standards called? |
A Bay |
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What is the distance between two transoms called? |
A Lift |
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What is the pulley that you attach to scaffold to hoist materials up called? |
A Gin Wheel or Block |
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What is a Plan Brace? |
A diagonal braces running horizontally between standards to keep the scaffold square and resists shunting. |
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What type of Control is Material Handling Equipment considered? |
An Engineered control. |
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What is a SWL? How is it Calculated? |
Safe Working Load is calculated by a fraction of the actual breaking strength of the weakest component of the rigging equipment. |
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What Breaking Strength? |
Minimum load that is required to break that component. |
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What is a Sling? |
A sling is used to fasten loads to hoisting equipment.
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What is Shock Loading? |
Any sudden movement of the load by Hoisting equipment. |
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What do you place on material to limit the possibility of kinking and damaging the material when hoisting? |
Load Softeners. |
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What is the Safety Factor for General Rigging and Hoisting? |
5:1 |
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What is the Safety Factor for Lifting and Transporting Workers? |
10:1 |
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What is the Safety Factor for Public Elevators? |
20:1 |
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What is an advantage of Synthetic Slings? |
They will not mar, deface or scratch delicate surfaces. They more elastic which allows them to absorb shock loads better. |
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What is the recommended maximum angle for lifting a load? |
60 Degrees |
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When lifting something with eyebolts, it is recommended to do what? |
Attach a shackle to the eyebolt to be used with a hook. |
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A hoisting machine can attach a __________ to provide a mechanical advantage. |
Block |
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Describe the hoisting signal for "Stop" |
One arm is waved back and forth perpendicular to the signalman's body. |
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Describe the hoisting signal for "Emergency Stop" |
Both arms should be swept out from the body at shoulder height. (The safe motion in baseball) |
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When doing hand signals to have the operator move slowly, what do you change about your signals? |
Place the opposite hand over or under the finger signal. |
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What does WHMIS stand for? |
Workplace Hazardous Materials Information System |
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What does MSDS stand for? |
Material Safety Data Sheet |
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Where should MSDS books be located on a job site? |
Somewhere that is easily accessible, ie. First Aid office or Lunchroom |
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What are the three key elements of WHMIS? |
1. Worker Education 2. Product Labelling 3. MSDS |
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When must you use a Workplace Label? |
You must use a workplace label when transferring the material to any container in which it was not shipped in. |
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What are the three things that are needed to start a fire? |
Fuel, Air, and Heat |
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What is a Class A fire and what is the symbol? |
Wood and paper, AKA normal combustibles. The symbol is a green triangle with an "A" in the centre |
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What is a Class B fire and what is the symbol?
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Flammable liquids. Red Square with a "B" in the centre.
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What is a Class C fire and what is the symbol? |
Electrical fire. Blue circle with a "C" in the centre. |
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What is a Class D fire and what is the symbol? |
Combustible Metals. Yellow Star with a "D" in the centre. |
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What is a Class K fire and what is the symbol? |
Grease or cooking oil fire. Black box with a "K" in the centre. |
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What type of extinguishing agent(s) can be used on Class B and C fires, but not on Class A, D, or K? |
Carbon Dioxide, Regular Dry Chemical, and Purple K Dry Chemical. |
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What type of extinguishing agent(s) can be used on Class A, B, and C fires? |
Multi-purpose Dry Chemical |
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Water can only be used as an extinguishing agent in what Class of fire? |
Class A only |
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What is the Acronym for using a portable fire extinguisher and what does it stand for? |
PASS P: Pull the Pin, A: Aim at the base of the flames, S: Squeeze the handle, S: Sweep the nozzle from right to left. |
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What does OH&S stand for? |
Occupational Health and Safety. |
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What is Bill C-45? |
Bill C-45 is Federal Legislation that protects you and your co-workers and prescribes criminal charges be laid where a workplace injury or fatality occurs. |
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What PPE is your employer responsible for providing? |
Noise and Respiratory PPE. |
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What PPE is your employer allowed to enforce you to use on the job site? |
Anything that they think necessary. |
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Who is responsible for the condition of your PPE? |
The employee using said PPE |
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What are the four workplace hazard categories? |
1. Biological Hazards, 2. Chemical Hazards, 3. Ergonomic Hazards, 4. Physical Hazards |
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What are the three Controls? |
1. Engineered Controls, 2. Administrative Controls, 3. PPE Controls |
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What is better to have on a job site, generically speaking. An Emergency First Aider and a Standard First Aider, or two Standard First Aiders? |
Two Standard First Aiders are better to have on site, generically speaking. |
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What is the single largest contributor to safety in the workplace? |
Attitude |