03---Wednesday---Oxygen

Question 1

What is the specific Gravity of O2 ?

Answer 1

1.11

Question 2

How many Millibars are at normal pressure?

Answer 2

1013mb

Question 3

Hyperoxia is described as?

Answer 3

oxygen toxicity of the central nervous system

Question 4

Is O2 soluble in water?

Answer 4

Yes

Question 5

What is the chemical symbol?

Answer 5

O2

Question 6

What is the legal limit for O2 (Minimum Allowable Content in mine atmosphere)?

Answer 6

19%

Question 7

Present in normal atmospheres what is the normal amount in air?

Answer 7

20.93%

Question 8

Confined space stipulates an oxygen level of % of Oxygen?

Answer 8

19.5%

Question 9

Physiological Effects
what are the symptoms?
21%

Answer 9

Normal amount in air

Question 10

Physiological Effects
what are the symptoms?
19%

Answer 10

legal amount CMRA

Question 11

Physiological Effects
what are the symptoms?
18%

Answer 11

slight increase in breathing rate some loss of night vision.

Question 12

Physiological Effects
what are the symptoms?
16%

Answer 12

increase in pulse some loss of night and colour vision, judgement affected.

Question 13

Physiological Effects
what are the symptoms?
14%

Answer 13

abnormal fatigue, emotional upset,impaired judgement and fault co ordination

Question 14

Physiological Effects
what are the symptoms?
2%

Answer 14

Nausea,vomiting,inability to move or cry out, loss of consciousness may occur

Question 15

Physiological Effects
what are the symptoms?
6%

Answer 15

Convulsions, respiration stops, heart action ceases