Safety Flashcards
T or F - Irritants are chemicals that cause visible destruction of living body tissue
False
T or F - 250 ft is the max distance a safety net can be placed below a working surface
False
Ratchet pipe reamers with spiral blades should not be used with power equipment
True
Wrenches should be ___ rather than ___ to minimize the chances of them slipping off the work
Pulled, Pushed
What are the 3 essential elements to produce an ordinary fire?
Heat, Oxygen and Fuel
T or F - Oxygen is an acceptable substitute for compressed air?
False
T or F - All respirators are rated for multiple different uses
False
T or F - A class B Fire may be put out with a Dry Chemical Fire Extinguisher
True
T or F - The preferred method of controlling serious bleeding is the application of a tourniquet
False
T or F - Leaks on threaded joints on Oxygen cylinders may be fixed by using pipe dope or oil
False
T or F - Guardrails and toe boards are required on scaffolds over 8 feet?
False
T or F - All planking on scaffold platforms shall be overlapped a minimum of 12” or secured from moving
True
T or F - Ceiling (TLV-C) is the concentration that should not be exceeded even instantaneously
True
T or F - Ear plugs or muffs are effective in reducing noise levels up to 95 db only
True
T or F - The right to Know law does NOT protect employees from the dangers of hazardous or toxic substances on the job
False
T or F - A hammer with a head made of non-ferrous metal should be used when working in an atmosphere containing flammable vapor
True
Inhalation absorption and ingestion are 3 ways a ___ poison can enter the body
Systemic
How much dead weight must a lifeline or lanyard be able to support?
5400
Ladders should extend __ from the top edge of a trench
3 ft
One symptom of heat stroke is?
weak, slow pulse
Excavated material dug out of a trench and placed at ground level is known as __
spoil
Three characteristics of a confined space are?
Limited openings
Unfavorable natural ventilation
Not designed for continuous occupancy
What is the simple method of placing a portable non-self supporting ladder in a safe manner?
4:1 rule
When wire, fiber or synthetic rope is used to suspend a scaffold, what minimum carrying capacity is required?
6x the load
Two methods that may be used in lieu of shoring to protect workers in a trench are?
sliding trench shield and portable hydraulic shoring
List two methods of ventilation of confined space
natural and mechanical
Three types of atmospheres that can exist in a confined spaces are; toxic, flammable and ___
oxygen deficient
Guardrails shall be ___ high
42”
Scaffolds shall be properly braced by __ or __ braces
cross or diagonal
Define Corrosives
Chemicals that cause visible destruction of living tissue at the sight of contact
Define Irritants
Chemicals which are not corrosive but cause a reversible inflammatory effect on living tissues
Name 3 systematic ways poisons can enter the body
- inhalation
- absorption
- ingestion
Name 6 hazardous substances
Mists vapors gases, fumes dusts solids
What are the 4 type of fire extinguishers and their applications
A - Triangle - Ordinary combustibles
b - Square - Flammable liquids
C - Circle - Electrical Equipment
D - Star - Combustible materials
What does ASTM stand for?
American Standard for Testing & Materials
