Q. What is the main byproduct of incomplete combustion that poses health risks?
-
A.
Carbon Dioxide
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B.
Carbon Monoxide
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C.
Methane
-
D.
Nitrogen Oxides
Solution
Carbon Monoxide is the main byproduct of incomplete combustion that poses health risks.
Correct Answer:
B
— Carbon Monoxide
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Q. What is the primary component of natural gas used in combustion?
-
A.
Propane
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B.
Butane
-
C.
Methane
-
D.
Ethane
Solution
The primary component of natural gas used in combustion is Methane.
Correct Answer:
C
— Methane
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Q. What is the primary gas produced during the combustion of hydrocarbons?
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A.
Oxygen
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B.
Carbon Dioxide
-
C.
Nitrogen
-
D.
Hydrogen
Solution
The primary gas produced during the combustion of hydrocarbons is Carbon Dioxide.
Correct Answer:
B
— Carbon Dioxide
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Q. What is the role of oxygen in the combustion process?
-
A.
Fuel source
-
B.
Oxidizing agent
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C.
Cooling agent
-
D.
Inhibitor
Solution
Oxygen acts as an oxidizing agent in the combustion process.
Correct Answer:
B
— Oxidizing agent
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Q. What is the term for the minimum temperature required to ignite a substance?
-
A.
Flash Point
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B.
Ignition Temperature
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C.
Autoignition Temperature
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D.
Fire Point
Solution
The minimum temperature required to ignite a substance is called the Ignition Temperature.
Correct Answer:
B
— Ignition Temperature
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Q. Which gas is often used in hospitals for its anesthetic properties and is also a product of combustion?
-
A.
Nitrous Oxide
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B.
Oxygen
-
C.
Carbon Dioxide
-
D.
Helium
Solution
Nitrous Oxide is used in hospitals for its anesthetic properties and is also a product of combustion.
Correct Answer:
A
— Nitrous Oxide
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Q. Which of the following is a common method to extinguish a flame?
-
A.
Adding oxygen
-
B.
Cooling the flame
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C.
Increasing fuel supply
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D.
Enhancing combustion
Solution
Cooling the flame is a common method to extinguish a flame.
Correct Answer:
B
— Cooling the flame
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Q. Which of the following is a sign of incomplete combustion?
-
A.
Clear flame
-
B.
Yellow flame
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C.
Blue flame
-
D.
No smoke
Solution
A Yellow flame is a sign of incomplete combustion.
Correct Answer:
B
— Yellow flame
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Q. Which type of combustion occurs without the presence of oxygen?
-
A.
Complete Combustion
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B.
Incomplete Combustion
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C.
Anaerobic Combustion
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D.
Exothermic Combustion
Solution
Anaerobic Combustion occurs without the presence of oxygen.
Correct Answer:
C
— Anaerobic Combustion
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Q. Which type of flame is characterized by a blue color and complete combustion?
-
A.
Luminous Flame
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B.
Non-Luminous Flame
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C.
Diffusion Flame
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D.
Premixed Flame
Solution
A Non-Luminous Flame is characterized by a blue color and indicates complete combustion.
Correct Answer:
B
— Non-Luminous Flame
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