3B1 - Power engineering - practice
Questions with Complete Solutions
Which of the following are functions of the auxiliary fuel
burners in a Black Liquor Recovery Boiler:
1. Stabilize conditions during upsets in the black liquor feed
2. Produce extra steam
3. Burn out the char bed when shutting down
4. Maintain furnace temperatures
5. Sustain a stable ignition while establishing a char bed
6. Raise steam during startup - Correct Answers
✅1.2.3.5.6.
chp 2
Vibrating grates serve to aid combustion by _______ out the
bed of burning biomass. - Correct Answers ✅Leveling
chp 2
With On - Off boiler feed water control, water is supplied
_____________ to the boiler, either by fully opening or fully
closing a valve in the feedwater line. - Correct Answers
✅Intermittently
, 3B1 - Power engineering - practice
Questions with Complete Solutions
Chp 8
The ______ ,used in the spray desuperheater, must be of the
highest quality since any solids carried over will cause
deposits in superheater tubes and on turbine blades. -
Correct Answers ✅Water ( not steam)
Chp 8
The Gas Recirculation method is used to maintain the desired
steam temperature at ________ loads. - Correct Answers
✅Partial
Chp 8
At high loads when the steam temperature tends to go above
the desired value, the tilting burners are tilted ___________. -
Correct Answers ✅Downwards ...
Chp 8
The three-element feedwater control system overcomes the
effects of swell and shrinkage and also responds to _________
flow. - Correct Answers ✅FW
Questions with Complete Solutions
Which of the following are functions of the auxiliary fuel
burners in a Black Liquor Recovery Boiler:
1. Stabilize conditions during upsets in the black liquor feed
2. Produce extra steam
3. Burn out the char bed when shutting down
4. Maintain furnace temperatures
5. Sustain a stable ignition while establishing a char bed
6. Raise steam during startup - Correct Answers
✅1.2.3.5.6.
chp 2
Vibrating grates serve to aid combustion by _______ out the
bed of burning biomass. - Correct Answers ✅Leveling
chp 2
With On - Off boiler feed water control, water is supplied
_____________ to the boiler, either by fully opening or fully
closing a valve in the feedwater line. - Correct Answers
✅Intermittently
, 3B1 - Power engineering - practice
Questions with Complete Solutions
Chp 8
The ______ ,used in the spray desuperheater, must be of the
highest quality since any solids carried over will cause
deposits in superheater tubes and on turbine blades. -
Correct Answers ✅Water ( not steam)
Chp 8
The Gas Recirculation method is used to maintain the desired
steam temperature at ________ loads. - Correct Answers
✅Partial
Chp 8
At high loads when the steam temperature tends to go above
the desired value, the tilting burners are tilted ___________. -
Correct Answers ✅Downwards ...
Chp 8
The three-element feedwater control system overcomes the
effects of swell and shrinkage and also responds to _________
flow. - Correct Answers ✅FW
