NIOSH 582 Exam Questions and Answers
100% Pass
Question 1
what is the margin of error on a Walton Beckett graticule
Correct Answer
plus or minus two
Question 2
what is the maximum numbers to be counted in 100 fields on a field blank
Correct Answer
7
Question 3
1300 fibers/mm^2 is associated with
Correct Answer
upper optimal fiber density
Question 4
what is the range of flow rates for OSHA regulated personal breathing zone samples
Correct Answer
0.5-2.5L/min
Question 5
acetone is extremely flammable
Correct Answer
true
Page 1 of 10
, Question 6
what are the proper steps to adjusting a phase ring microscope
Correct Answer
1. focus on the sample
2. adjust the field iris
3. center the phase ring
Question 7
to count an object it must have what ratio
Correct Answer
3:1
Question 8
how often should blind recounts be preformed
Correct Answer
10% of the time
Question 9
What is the OSHA permeable exposure level for a 30 min Excursion Limit
Correct Answer
1.0 fibers/cc
Question 10
according to niosh rules a fiber must be longer than
Correct Answer
5um
Page 2 of 10
100% Pass
Question 1
what is the margin of error on a Walton Beckett graticule
Correct Answer
plus or minus two
Question 2
what is the maximum numbers to be counted in 100 fields on a field blank
Correct Answer
7
Question 3
1300 fibers/mm^2 is associated with
Correct Answer
upper optimal fiber density
Question 4
what is the range of flow rates for OSHA regulated personal breathing zone samples
Correct Answer
0.5-2.5L/min
Question 5
acetone is extremely flammable
Correct Answer
true
Page 1 of 10
, Question 6
what are the proper steps to adjusting a phase ring microscope
Correct Answer
1. focus on the sample
2. adjust the field iris
3. center the phase ring
Question 7
to count an object it must have what ratio
Correct Answer
3:1
Question 8
how often should blind recounts be preformed
Correct Answer
10% of the time
Question 9
What is the OSHA permeable exposure level for a 30 min Excursion Limit
Correct Answer
1.0 fibers/cc
Question 10
according to niosh rules a fiber must be longer than
Correct Answer
5um
Page 2 of 10
