Discussion
The glass that is made stronger than the ordinary glass by introducing stress through rapid heating and cooling of glass surface is known as :
Answer: B
Glass strengthened by built-in stress is tempered glass.
The glass is heated close to its softening point and its surfaces are then cooled rapidly by air jets. The surfaces set first and are left in compression while the core is in tension, which makes the glass several times stronger. When it does break it shatters into small blunt cubes, which is useful when examining broken side and rear car windows.
Laminated glass is two sheets bonded to a plastic interlayer, as in windscreens, and cracks in a web without falling apart. Insulated glass is a double-glazed unit with a gap between panes. Neither is strengthened by thermal stress, and plasticized glass is not such a product.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development