BI_11B

Question 1

What is the common unit of measuring absolute humidity? a) b) grains of water per pound of dry air c) d)

Answer 1

Grains of water per pound of dry air ref: p. 180

Question 2

What is dew point? a) b) the air temperature at which water vapor begins to condense c) d)

Answer 2

The air temperature at which water vapor begins to condense ref: p. 184

Question 3

What is the base for finding the specific gravity of gases? a) b) air c) d)

Answer 3

Air ref: p. 171

Question 4

What is a hydrometer used to measure? a) b) specific gravity of liquids c) d)

Answer 4

‘Specific gravity of liquids ref: p. 172

Question 5

What is viscosity? a) b) the resistance a liquid has to flow c) d)

Answer 5

The resistance a liquid has to flow ref: p. 177

Question 6

What is pH factor a measurement of? a) b) Acid-base c) d)

Answer 6

Acid-base ref: p. 185

Question 7

If a pH of 7 is neutral, what is a substance with a pH lower than seven? a) b) Acidic c) d)

Answer 7

Acidic ref: p. 186

Question 8

What us the neutral number of pH scale? a) b) Seven c) d)

Answer 8

Seven ref: p. 186 table 11.7

Question 9

Litmus paper when dipped into acid solution will turn______. a) b) Red c) d)

Answer 9

Red ref: p. 186

Question 10

Can pH be measured with electricity? a) b) YES

Answer 10

Yes ref: p. 186

Question 11

Another specific gravity scale that has been in use for almost two centuries is the Baume scale a) true b) false

Answer 11

a) true ref: p. 172

Question 12

Not all fluids are viscous. a) true b) false

Answer 12

b) false ref: p. 177

Question 13

Any instrument that measures viscosity is called what? a) b) Viscometer or a Viscometer c) d)

Answer 13

Viscometer or a Viscometer ref: p. 179

Question 14

What are the two types of humidity?

Answer 14

1. Absolute 2. Relative ref: p. 180