Skip to content

Home
About
Study Pack
Contact
Log In

G3 Quiz 7

G3 Quiz 7

Time limit: 0

Quiz Summary

0 of 10 Questions completed

Questions:

Information

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 10 Questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 point(s), (0)

Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)

Categories

Not categorized 0%

1
2
3
4
5
6
7
8
9
10

Current
Review
Answered
Correct
Incorrect

Question 1 of 10

1. Question
1. The major constituents of flue gases after the proper combustion of natural gas in the air are
- A) CO, H20, N2, excess air, and heat
- B) H20, N2, primary air, and heat
- C) CO2, H20, N2, 02, and heat
- D) 02, CO, N2, H20, and heat
Correct

Incorrect
Question 2 of 10

2. Question
1. A bunsen flame is characterized by its
- A) blue appearance
- B) yellow appearance
- C) orange appearance
- D) green/orange appearance
Correct

Incorrect
Question 3 of 10

3. Question
1. The 2 main hydrocarbons which form natural gas are
- A) methane and ethane
- B) butane and propane
- C) ethane and butane
- D) methane and propane
Correct

Incorrect
Question 4 of 10

4. Question
1. What theoretical gas to air ratio is necessary to achieve perfect combustion with atmospheric natural gas burner
- A) 1 part of natural gas to 10 parts of air
- B) 5 parts of natural gas to 5 parts of air
- C) 5 parts of natural gas to 15 parts of air
- D) 20 parts of natural gas to 1 part of air
Correct

Incorrect
Question 5 of 10

5. Question
1. Carbon monoxide is produced through
- A) perfect combustion
- B) complete combustion with excess air present
- C) incomplete combustion
- D) incomplete mixing of theoretical air and primary air
Correct

Incorrect
Question 6 of 10

6. Question
1. The products of complete combustion of natural gas in air are
- A) carbon monoxide, water vapour, and heat
- B) carbon dioxide, water vapour, and heat
- C) aldehydes, water vapour, and heat
- D) nitrous oxide, water vapour, and heat
Correct

Incorrect
Question 7 of 10

7. Question
1. If a natural gas flame is adjusted to produce more than 10% carbon dioxide
- A) carbon monoxide may be produced
- B) combustion efficiency will decrease
- C) the flame will be very noisy and will lift off of the burner
- D) there will be little overall effect
Correct

Incorrect
Question 8 of 10

8. Question
1. What could result if a flame is adjusted with too much primary air
- A) flame quenching
- B) a luminous flame
- C) flame lit
- D) flame dilution
Correct

Incorrect
Question 9 of 10

9. Question
1. Natural gas is 85% to 90%
- A) ethane
- B) pentane
- C) methane
- D) butane
Correct

Incorrect
Question 10 of 10

10. Question
1. How much air is required to burn 1,000 cubic feet or natural gas per hour
- A) 100 cu ft (2.843 cu m)
- B) 1,000 cu ft (28.3 cu m)
- C) 10,000 cu ft (283.1 cu m)
- D) 100,000 cu ft (2831 cu m)
Correct

Incorrect

Copyright © 2024 HVAC Exam Prep