An air-purifying respirator should be changed _____. a. after ...

[berenicecastro]

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

Question 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

[Chou]

Answer to Question 1

c

Answer to Question 2

d

[berenicecastro]

TY

[Chou]

You're welcome