NCCER (National Center for Construction Education & Research) Practice Test
NCCER - National Center for Construction Education and Research Free NCCER Basic Safety Test 2
When gas welding or burning, welders are required to wear tinted goggles or welding hoods with a filter lens of not less than a _____ shade.
Select your answer
A
No. 10
B
No. 2
C
No. 8
D
No. 4
Hint
