Safety Flashcards
Two types of respirators are
Air is supplying and air purifying
Two methods of ventilation of a confined space
Natural ventilation and mechanical ventilation
Temporary shoring using _________ can be installed prior to installation of other types of support systems
Trench jacks
The ladder side rails shall extend at least _________ above upper landing surface to which ladder is used
3 feet
An atmosphere containing over what percentage oxygen is considered to be oxygen in rich and will cause flammable materials to burn violently
21%
A scaffold should support how many times the anticipated weight of the workers in materials placed on the platform
4 times
True or false the term confined space means any space having a limited means of egress which is subject to the accumulation of toxic or flammable contaminants or has an oxygen deficient atmosphere
True
What do the letters GFC I stand for
Ground fault circuit interrupter
What are three elements necessary to produce a fire
Heat fuel oxygen
What is used to test for leaks on a low pressure gas and oxy-acetylene valves and equipment
Soapy water
How much weight must a lifeline or lanyard be able to support
5400 pounds
