3B1 - Power engineering - practice questions and answers

3B1 - Power engineering - practice questions and answers 1.2.3.5.6. chp 2 - Correct Answer 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 Leveling chp 2 - Correct Answer Vibrating grates serve to aid combustion by _______ out the bed of burning biomass. Intermittently Chp 8 - Correct Answer 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. Water ( not steam) Chp 8 - Correct Answer The ______ ,used in the spray desuperheater, must be of the highest quality since any solids carried over will cause deposits in