C2 Assignment

Question 1

What is the name of the chemical grouping of petroleum gases?

Answer 1

Hydrocarbons

Question 2

Name the three most commonly used petroleum gases

Answer 2

natural gas
propane
butane

Question 3

List the main components of natural gas

Answer 3

87% methane

7% ethane

Question 4

List the 4 types of natural gas:

Answer 4

1. Wet gas - CH4 with heavy hydrocarbons
2. Dry gas - CH4 processes, no heavy hydrocarbons
3. Sour gas - CH4 with hydrogen sulphide
4. Sweet gas - CH4 with no hydrogen sulphide

Question 5

describe the processing of liquefied petroleum gases

Answer 5

Both propane and butane are extracted from oil and CH4 and chemically separated (fractionalized)
into their final liquid forms.

Question 6

When and where was the first recorded use of natural gas and what was it used for?

Answer 6

3000 years ago in china to boil away salt from brine

Question 7

when was the first practical application of manufactured gas?

Answer 7

1792 - William Murdoch used gas lighting

Question 8

when and where was the modern natural gas industry developed?

Answer 8

1821 fredonia, new york

Question 9

how long was the first “long distance” gas pipe line?

Answer 9

25 miles of wooden pipe

Question 10

What development in the 1930’s made natural gas universally available to North America?

Answer 10

manufacturing of seamless and electrically welded pipe able too withstand higher pressures

Question 11

List the four “environmentally-friendly” characteristics of natural gas?

Answer 11

1. clean burning
2. efficient
3. easily combustible
4. low in sulphur content

Question 12

list the 5 steps in the process of bringing natural gas to the consumer:

Answer 12

1. drilling
2. processing
3. transportation
4. distribution
5. storage

Question 13

The main constituent of natural gas is:

a) ethane
b) propane
c) methane
d) butane

Answer 13

c) methane

Question 14

The chemical formula for butane is:

a) CH4
b) C3H8
c) C2H3
d) C4H10

Answer 14

d) C4H10

Question 15

The specific gravity of propane vapour is:

a) 0.6
b) 1.2
c) 1.5
d) 2.0

Answer 15

c) 1.5

Question 16

the specific gravity of water is

a) 0.6
b) 1
c) 1.5
d) 2.0

Answer 16

b) 1

Question 17

Which of the fuel gases has the lowest specific gravity?

a) natural gas
b) butane
c) propane
d) nitrogen

Answer 17

a) natural gas

Question 18

The specific gravity of liquid propane is:

a) 0.5
b) 0.6
c) 1.5
d) 2.0

Answer 18

a) 0.5

Question 19

The boiling point of liquid propane at atmospheric pressure is:36

a) 212F
b) 100F
c) 32F
d) -44F

Answer 19

d) -44F

Question 20

If 1 cu ft of liquid natural gas at atmospheric pressure was vapourized, how much space would it occupy?

a) 44 cu ft
b) 270 cu ft
c) 600 cu ft
d) 1700 cu ft

Answer 20

c) 600 cu ft

Question 21

The limits of flammability for natural gas are:

a) 2.4 - 9.5% gas/air
b) 4-10% gas/air
c) 4-14% gas/air
d) 9.5-14% gas/air

Answer 21

c) 4-14% gas/air

Question 22

The maximum flame temperature of natural gas is:

a) 2520F
b) 3000F
c) 3550F
d) 3625F

Answer 22

c) 3550F