Chapter 7 (Gas Detection Instruments)

Question 1

What are the four categories of hazardous atmospheres?

Answer 1

Toxic
Oxygen Deficient
Explosive
Smoke

Question 2

What is DRI?

Answer 2

Direct Reading Instrument (MX5)

Question 3

What is intrinsically safe?

Answer 3

Means minimal electrical conductivity, safe around explosive

Question 4

What is colorimetric testing?

Answer 4

Tube testing

Question 5

Will heavy air rise or fall?

Answer 5

Fall

Question 6

What are the two types of gas detectors?

Answer 6

Electronic
Colorimetric (Tube)

Question 7

What is a bump test?

Answer 7

Short exposure of gas to test monitor