An air-purifying respirator should be changed _____.
a. after every eight-hour work shift
b. after 24 hours of total use
c. when the wearer detects any taste or smell
d. three days after the filter cartridge is installed
[Ques. 2] The risk of flash burn can be reduced by _____.
a. wearing chaps and spats
b. looking slightly to the left or right of the arc while welding
c. wearing a welding cap with the visor turned backwards
d. wearing safety glasses and a hood with a properly tinted lens
[Ques. 3] Which of the following is a correct statement regarding personal protective equipment?
a. If tennis shoes are worn while welding, spats must also be worn.
b. Leathers are only needed during cutting operations.
c. Disposable earplugs are the most common form of hearing protection used in welding.
d. The minimum protective shade of eye protection for SMAW is 4.
[Ques. 4] Which of these is the correct statement regarding SDSs/MSDSs?
a. They are only required for acids.
b. They need only be stored at the employee's corporate offices.
c. They must be available at the job site to workers.
d. Workers must be provided access to them through the Internet.
[Ques. 5] The proper selection of a respirator is based on the _____.
a. user's size and level of activity
b. contaminant present and its concentration
c. amount of time it will be worn
d. wearer's personal preference
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