HOSMERIT
UNIT 32 OIL HEAT EXAM | QUESTIONS &ANSWERS
(VERIFIED) | LATEST UPDATE |GRADED A+
How many grades of fuel oil are normally considered as heating oils.
Correct answer: There are six
What two elements make up fuel oil
Correct answer: Carbon and Hydrogen
The most common fuel oil used for residential and light commercial is?
Correct answer:
Number two
As the temperature of an oil sample decreases;
Correct answer:
The viscosity of the oil increases
If oil is to be stored at temperatures lower than 20 degrees F.
Correct answer:
The viscosity will be thicker.
Explain why periodic oil tank inspection is desired:
, Correct answer: To ensure that the tank is free of leaks and that the protective anodesare in
good working conditions.
If it is expected that an oil-fired appliance will burn 850 gallons of oil per year, how bigthe oil
storage be?
Correct answer: 275 gallons.
How many pounds of oxygen are required to burn 1 pound of Number two fuel?
Correct answer: 3 Lbs of oxygen
Which of the followin is the typical out-put voltage of the ignition transformer?
Correct answer: 10,000 volts
What are the two functions of the primary control on an oil burner?
Correct answer: First, it provides the means for operating the unit, Its second functionis that of
safety.
Explain the concept of excess air when it is used to describe the combustion process;
Correct answer: Most oil burners are set up to burn with appoximately 50 % Excess air. When
1Lb of oil with 50% excess air is burned 21.6 lbs. or 288 CuFt. of air must befurnished.
Before fuel oil can be burned, it must be
UNIT 32 OIL HEAT EXAM | QUESTIONS &ANSWERS
(VERIFIED) | LATEST UPDATE |GRADED A+
How many grades of fuel oil are normally considered as heating oils.
Correct answer: There are six
What two elements make up fuel oil
Correct answer: Carbon and Hydrogen
The most common fuel oil used for residential and light commercial is?
Correct answer:
Number two
As the temperature of an oil sample decreases;
Correct answer:
The viscosity of the oil increases
If oil is to be stored at temperatures lower than 20 degrees F.
Correct answer:
The viscosity will be thicker.
Explain why periodic oil tank inspection is desired:
, Correct answer: To ensure that the tank is free of leaks and that the protective anodesare in
good working conditions.
If it is expected that an oil-fired appliance will burn 850 gallons of oil per year, how bigthe oil
storage be?
Correct answer: 275 gallons.
How many pounds of oxygen are required to burn 1 pound of Number two fuel?
Correct answer: 3 Lbs of oxygen
Which of the followin is the typical out-put voltage of the ignition transformer?
Correct answer: 10,000 volts
What are the two functions of the primary control on an oil burner?
Correct answer: First, it provides the means for operating the unit, Its second functionis that of
safety.
Explain the concept of excess air when it is used to describe the combustion process;
Correct answer: Most oil burners are set up to burn with appoximately 50 % Excess air. When
1Lb of oil with 50% excess air is burned 21.6 lbs. or 288 CuFt. of air must befurnished.
Before fuel oil can be burned, it must be
