55 Power Engineering 3B2 -
Chapter 13 Quiz Questions
What is the advantage of oil bath heaters (beside heating up to 260°
C) - ✔ ✔ The oil protects the heating tubes from general corrosion
and pitting
What is the efficiency of convection heaters? - ✔ ✔ 75 to 85%
When a direct-fired heat is used to heat the process fluid drawn off
the bottom of a fractionator tower, it is called fractionator:
a. Heater.
b. Reboiler.
c. Reaction.
d. Storage.
e. Cracking. - ✔ ✔ B
When only one burner is on and the burner pressure is low, what
could you say of the heater? - ✔ ✔ It is on minimum firing
Which of the following require the use of direct fired heaters.
1. Fractionator reboiling.
2. Preheating the process feed to a reactor.
3. To heat a heat transfer medium.
, 4. Heating viscous fluids.
a. 1, 2, 3
b. 1, 2, 4
c. 1, 3, 4
d. 2, 3, 4
e. 1, 2, 3, 4 - ✔ ✔ E
Why is "low process flow" a protective device? - ✔ ✔ Because if
the process fluid flow is low or interrupted, the tubes could quickly
overheat
Most vertical fired heaters are of the _____ draft design.
a. Natural.
b. Mechanical.
c. Forced.
d. Balanced.
e. Mixed. - ✔ ✔ A
Normal areas to measure draft in a fired heater are:
1. In the midpoint of the radiant section.
2. Near the floor of the firebox.
3. Just below the convection section.
4. In the duct above the convection section.
Chapter 13 Quiz Questions
What is the advantage of oil bath heaters (beside heating up to 260°
C) - ✔ ✔ The oil protects the heating tubes from general corrosion
and pitting
What is the efficiency of convection heaters? - ✔ ✔ 75 to 85%
When a direct-fired heat is used to heat the process fluid drawn off
the bottom of a fractionator tower, it is called fractionator:
a. Heater.
b. Reboiler.
c. Reaction.
d. Storage.
e. Cracking. - ✔ ✔ B
When only one burner is on and the burner pressure is low, what
could you say of the heater? - ✔ ✔ It is on minimum firing
Which of the following require the use of direct fired heaters.
1. Fractionator reboiling.
2. Preheating the process feed to a reactor.
3. To heat a heat transfer medium.
, 4. Heating viscous fluids.
a. 1, 2, 3
b. 1, 2, 4
c. 1, 3, 4
d. 2, 3, 4
e. 1, 2, 3, 4 - ✔ ✔ E
Why is "low process flow" a protective device? - ✔ ✔ Because if
the process fluid flow is low or interrupted, the tubes could quickly
overheat
Most vertical fired heaters are of the _____ draft design.
a. Natural.
b. Mechanical.
c. Forced.
d. Balanced.
e. Mixed. - ✔ ✔ A
Normal areas to measure draft in a fired heater are:
1. In the midpoint of the radiant section.
2. Near the floor of the firebox.
3. Just below the convection section.
4. In the duct above the convection section.
