OBT3 CHAPTERS 6-12
QUESTIONS |GUARANTEED
ACCURATE ANSWERS |
COMPLETE!!
Fuel oil is a member of the __________ family of chemical compounds - ACCURATE
ANSWERS✔✔ hydrocarbon
Approximately 96% to 99.75% of the fuel oil is composed of:
A) methane and propane
B)sulphur, oxygen and nitrogen
C) hydrogen and carbon
D)manufactured oil - ACCURATE ANSWERS✔✔ c) hydrogen and carbon
That two general categories of refined fuel oils are:
A) distillates and residuals
B)light and dark
C)natural and manufactured
D)cracked and uncracked - ACCURATE ANSWERS✔✔ a) distillates and residuals
True or false
Kerosene is classified separately from fuel oil but considered as fuel oil under the fuel oil code -
ACCURATE ANSWERS✔✔ true
What are the 6 grades of fuel oil established by Canadian standards and their common
applications - ACCURATE ANSWERS✔✔ gas --> 1-5
EXAMLINKS
STUDY SMART,
,Gasoline --> 6-10
Leerosene --> 11-16
Light fuel oil --> 13-17
Heavy fuel oil --> 18-32
Residuals --> 28-70
Degrees of API gravity is a measurement scale of a fuel oil's ____________ - ACCURATE
ANSWERS✔✔ density or weight
What is the API range of no. 2 fuel oil - ACCURATE ANSWERS✔✔ 30 to 36
The commonly accepted heat valve of no.2 fuel oil is __________ btu/U.S. - ACCURATE
ANSWERS✔✔ 140,000
If the input rating of an appliance is 91,000 btu/h, the correct nozzle size would be:
A).50 gph
B).60 gph
C).65 gph
D).75 gph - ACCURATE ANSWERS✔✔ .65 gph
Viscosity is a measure of a fluid's:
A) density
B) heat content
C) resistance to flow
D) colour - ACCURATE ANSWERS✔✔ c) resistance to flow
EXAMLINKS
STUDY SMART,
, A fuel oil's viscosity _________ (increases or decreases) as the temperature of the oil decreases
- ACCURATE ANSWERS✔✔ increases
The distillate characteristics of a fuel oil indicate its:
A) density
B) volatility and ability to vaporize
C)viscosity
D) flashpoint and fire point - ACCURATE ANSWERS✔✔ b) volatility and ability to vaporize
True or false
Liquid fuel oil will burn
Explain - ACCURATE ANSWERS✔✔ false
Only vapours can burn
Define combustion - ACCURATE ANSWERS✔✔ rapid oxidation of a fuel creating heat and light
What are the 3 components required for combustion. - ACCURATE ANSWERS✔✔ oxygen,
ignition heat , fuel
What are the three types of combustion and briefly define each type - ACCURATE ANSWERS✔✔
1. Perfect combustion (will never be seen boor OBT)
2. Complete combustion
3.incomplete combustion
The products of complete combustion or fuel oil are:
A) carbon monoxide
EXAMLINKS
STUDY SMART,
QUESTIONS |GUARANTEED
ACCURATE ANSWERS |
COMPLETE!!
Fuel oil is a member of the __________ family of chemical compounds - ACCURATE
ANSWERS✔✔ hydrocarbon
Approximately 96% to 99.75% of the fuel oil is composed of:
A) methane and propane
B)sulphur, oxygen and nitrogen
C) hydrogen and carbon
D)manufactured oil - ACCURATE ANSWERS✔✔ c) hydrogen and carbon
That two general categories of refined fuel oils are:
A) distillates and residuals
B)light and dark
C)natural and manufactured
D)cracked and uncracked - ACCURATE ANSWERS✔✔ a) distillates and residuals
True or false
Kerosene is classified separately from fuel oil but considered as fuel oil under the fuel oil code -
ACCURATE ANSWERS✔✔ true
What are the 6 grades of fuel oil established by Canadian standards and their common
applications - ACCURATE ANSWERS✔✔ gas --> 1-5
EXAMLINKS
STUDY SMART,
,Gasoline --> 6-10
Leerosene --> 11-16
Light fuel oil --> 13-17
Heavy fuel oil --> 18-32
Residuals --> 28-70
Degrees of API gravity is a measurement scale of a fuel oil's ____________ - ACCURATE
ANSWERS✔✔ density or weight
What is the API range of no. 2 fuel oil - ACCURATE ANSWERS✔✔ 30 to 36
The commonly accepted heat valve of no.2 fuel oil is __________ btu/U.S. - ACCURATE
ANSWERS✔✔ 140,000
If the input rating of an appliance is 91,000 btu/h, the correct nozzle size would be:
A).50 gph
B).60 gph
C).65 gph
D).75 gph - ACCURATE ANSWERS✔✔ .65 gph
Viscosity is a measure of a fluid's:
A) density
B) heat content
C) resistance to flow
D) colour - ACCURATE ANSWERS✔✔ c) resistance to flow
EXAMLINKS
STUDY SMART,
, A fuel oil's viscosity _________ (increases or decreases) as the temperature of the oil decreases
- ACCURATE ANSWERS✔✔ increases
The distillate characteristics of a fuel oil indicate its:
A) density
B) volatility and ability to vaporize
C)viscosity
D) flashpoint and fire point - ACCURATE ANSWERS✔✔ b) volatility and ability to vaporize
True or false
Liquid fuel oil will burn
Explain - ACCURATE ANSWERS✔✔ false
Only vapours can burn
Define combustion - ACCURATE ANSWERS✔✔ rapid oxidation of a fuel creating heat and light
What are the 3 components required for combustion. - ACCURATE ANSWERS✔✔ oxygen,
ignition heat , fuel
What are the three types of combustion and briefly define each type - ACCURATE ANSWERS✔✔
1. Perfect combustion (will never be seen boor OBT)
2. Complete combustion
3.incomplete combustion
The products of complete combustion or fuel oil are:
A) carbon monoxide
EXAMLINKS
STUDY SMART,
