Power Engineering 3B2 - Chapter 13 Questions With Complete Solutions

Power Engineering 3B2 - Chapter 13 Questions With
Complete Solutions

_____ are essential parts of the burner safety management
system.

a. Low Water Fuel Cutoffs.
b. Flame Scanners.
c. Flame Igniters.
d. Gas Burner Nozzles.
e. Fuel Pressure Gages. Correct Answers B

A Eutectic salt solution used as a heat transfer medium in an
indirect heater is a mixture of:

a. Sodium nitrate and magnesium nitrate.
b. Calcium nitrate and magnesium nitrate.
c. Sodium nitrate and calcium nitrate.
d. Sodium nitrite and potassium nitrate.
e. Calcium nitrate and potassium nitrate. Correct Answers D

Airflow to each individual burner for a fired heater is controlled
by:

a. A fixed damper.
b. An air separator.
c. An air compressor.
d. An air register.
e. An outlet damper. Correct Answers D

, Are salt baths corrosive to the coils or shell? Correct Answers
No

Before starting an indirect fired heater, ensure the proper
operating level of the heat transfer fluid has been established in
the heater shell and __________________.

a. the level is always above the process heating coil
b. the level is always just below the process heating coil
c. the level is always between the fire tube and the process tube
d. the level is always at the mid point of the heater
e. the level is always above the expansion tank Correct Answers
A

Completion of purging automatically fired heaters is usually
determined by:

a. The volume of air drawn in.
b. The volume of exhaust air.
c. The amount of excess air.
d. Time.
e. The O2 level of the premix air. Correct Answers D

Describe a "premix" burner Correct Answers Gas and primary
air flow through a central mixing tube and the mixture is ignited
as it leaves the burner tip

Due to their great efficiency, the most commonly used heaters,
particularly in the larger sizes, are the _____ heaters.

a. Vertical.