• 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
Which one contains minimum percentage of SiO₂?

Sillimanite
Semi-silica
Firebrick
Aluminous firebrick

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
With increase in the alumina content, the refractoriness of high alumina refractories

Decreases
Remains same
Increases
May increase or decrease

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent.

2-3
7-12
5-7
14-20

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors.

Carborundum
Corundum
Beryllia
Thoria

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
High porosity refractory bricks have

Poor resistance to the peneration of molten slag, metal & flue gases
All of these
Better thermal spalling resistance
Poor heat conductivity & low strength

ANSWER DOWNLOAD EXAMIANS APP

Refractory Technology
Refractoriness under load (RUL) is the most important property for the refractory bricks

At the hearth bottom of the furnace on which stock is placed
Used for furnace insulation
Used in the roof of the furnace
None of these

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
↑