purpose of primary and secondary air?
causes of smoke?



purpose of primary and secondary air? causes of smoke?..

Answer / Rahul Krishnan Shrivastava

Primary air is used to combust fuel in the burner, while secondary air is introduced after the initial combustion to help complete the burning process and reduce emissions. Smoke can be caused by insufficient combustion of fuel due to a lack of oxygen or an excess of fuel.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Mechanical Engineering Interview Questions

what is the difference between ball bearing and journal bearings and its applications

4 Answers  


plz get me the placement paper for the hindalco industries Ltd. plz mail it on ashishkmishra15@yahoo.co.in

7 Answers   Hindalco,


how material removal occurs only in workpiece not in tool during an EDM process?

1 Answers   Anna University,


welding electrodes consumption per ton of structural steel fabrication

3 Answers   Galfar,


Why you consider yourself suitable for the post

1 Answers  


what is different between Diode and Zener diode?

3 Answers   APS, Invensys, NSN, RRB,


sir ,i applied rrb chennai for the post of junier engineer please sent model question papper with solved data to my mail id.aravindaptc@yahoo.co.in

0 Answers  


What is bearing & How many types of bearing ?

2 Answers  


Where can you find the feed check valve and feed stop valve and give the purpose of it?

1 Answers   RRB,


I am completed diploma in mechanical in 2002, i have 5year experience in materials (purchase) dept,i want to do SAP cource in MM module, i want to know can i complete SAP after diploma cource only, is it usefull to me for further Job opening.

1 Answers  


What are the most immediate challenges of this position that need to be addressed in the first three months?

1 Answers  


What is meant by gear ratio?

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5086)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4453)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)