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

Refractory Technology

Refractory Technology
Chemically, mullite refractories is

ThO₂
Al2O₃
3Al2O₃.2SiO₂
ZrSO₄

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Zirconia refractory

Is produced from baddeleyite
Can not be used as an insulator
Does not react with basic slags
Has poor electrical conductivity at high temperature

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Which one contains minimum percentage of SiO₂?

Aluminous firebrick
Firebrick
Semi-silica
Sillimanite

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Refractoriness/fusion points of 'superduty' refractories is __________ °C.

1630-1670
1520-1630
> 1730
> 2000

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Chrome magnesite bricks are

Neutral in nature
Made by mixing 30% chromite and 70% periclase
Acidic in nature
Having higher RUL than silica bricks

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Panel test determines the __________ of refractories.

Spalling resistance
Slag penetration resistance
Refractoriness under load (RUL)
Fusion point

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Refractory Technology

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
↑