Chapter 91

Question 0

A multi burner cluster has secondary and tertiary nozzles ignited by:
A) an igniter spark
B) an intermittent pilot flame
C) the primary burner
D) an interrupted pilot

Answer 0

C) the primary burner

Question 1

The reducing of oil into very small particles is termed:
A) atomization
B) fractionation
C) turbulence
D) fluidization

Answer 1

A) atomization

Question 2

Intermediate and high fire burner nozzles may have higher capacities than the primary burner nozzle to:
A) give greater firing variations
B) prevent pressure surges
C) prevent ignition puff backs
D) allow better boiler warm ups

Answer 2

D) allow better boiler warm ups

Question 3

When using mechanical fuel atomization:
A) 70 kPa steam pressure is required at the burner
B) 35 kPa oil pressure is required
C) high pump pressure is required
D) steam pressure is required to keep the bypass open

Answer 3

C) high pump pressure is required

Question 4

In order to burn heavy oils, they must be heated to approximately \_\_\_*C before they can be properly atomized.
A) 65
B) 75
C) 95
D) 50

Answer 4

C) 95

Question 5

The fuel oil supply pressure in a modulating burner and pilot system is approximately:
A) 950 kPa
B) 1500 kPa
C) 1380 kPa
D) 2000 kPa

Answer 5

C) 1380 kPa