02---Tuesday---Carbon Dioxide

Question 1

Physiological Effects What are the percentages?

Collapse within 30 seconds decrease in blood pressure convulsions coma

Answer 1

20 to 30%

Question 2

What is the specific Gravity?

Answer 2

1.53

Question 3

Is CO2 an inert gas?

Answer 3

Yes

Question 4

Physiological Effects What are the percentages?

Aniety panic irritability

Answer 4

4 to 5 %

Question 5

What percentage is this gas Toxic above?

Answer 5

5%

Question 6

Is CO2 soluble in water ?

Answer 6

Yes Highly soluble

Question 7

What is the chemical symbol?

Answer 7

CO2

Question 8

What is the legal limit of CO2 (Maximum Allowable Content in mine atmosphere)?

Answer 8

1.25%

Question 9

Present in normal atmospheres CO2 is usually produced in mines by?

Answer 9

respiration of humans and animals, 
normal oxidation of timber and coal, 
battery charging stations
diesel exhausts, 
shot firing 
early stages of heating of coal

Question 10

Physiological Effects What are the percentages?

Normal in air

Answer 10

0.03%

Question 11

Physiological Effects What are the percentages?

nil (TWA TLV)

Answer 11

0.5%

Question 12

Physiological Effects What are the percentages?

5% increase in resp rate

Answer 12

1.0%

Question 13

Physiological Effects What are the percentages?

Legal Limit

Answer 13

1.25%

Question 14

Physiological Effects What are the percentages?

50% inc resp rate

Answer 14

2.0%

Question 15

Physiological Effects What are the percentages?

100% inc resp rate (normal exhaled breath) panting upon exertion

Answer 15

3.0%