• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Fuels and Combustion

Fuels and Combustion
Which of the following is not a binder for coal briquetting?

Coal tar
None of these
Bitumen
Molasses

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Higher fuel combustion efficiency can not be achieved by

Supplying correct amount of combustion air
Preheating of fuel gases & combustion air
Adopting proper fuel firing technique & fuel preparation
Reducing sulphur content in the fuel

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
In low temperature carbonisation of coal, the

Yield of coke oven gas is 290 Nm³ /ton dry coal
Temperature maintained is 700°C
Yield of tar is about 3% of dry coal
Volatile matter in coke is zero

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

145
70
105
85

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
In high temperature carbonisation (as compared to low temperature carbonisation) of coal

Calorific value of coke oven gas is less
All of these
Coke oven gas yield is more
Tar yield is less but free carbon in tar is more

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
A coal containing very high percentage of durain is called __________ coal.

Non-banded
Bright
Splint
Boghead

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Fuels and Combustion

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑