Combustion and Flame
Passage
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Science
•
8th Grade
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Practice Problem
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Medium
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the necessary requirements for combustion?
Oxygen
Fuel
Combustible Substance
All of these
2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is Ignition Temperature?
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3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Observe the image carefully and answer the following question:
____________ hot zone leaves unburnt carbon particles.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of information does the calorific value provide about fuel energy content?
Volume per unit mass
Density per unit mass
Energy per unit mass
Temperature per unit mass
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is calorific value used for determining?
Fuel efficiency
Temperature
Pressure
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are common units used to measure calorific value?
Joules per gram
Kilojoules per kilogram
Calories per ounce
Watts per liter
7.
OPEN ENDED QUESTION
3 mins • 1 pt
How can the calorific value of a substance be accurately measured?
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