bullet proof glass is made up of which material?
Answer / sandeep
Bulletproof glass is usually constructed using a strong but
transparent material such as polycarbonate thermoplastic or
by using layers of laminated glass. The desired result is a
material with an appearance and light-transmitting behavior
of standard glass but offers varying degrees of protection
from small arms fire.
The polycarbonate layer, usually consisting of products
such as Cyrolon, Lexan and Tuffak, is often sandwiched
between layers of regular glass. The use of plastic in the
laminate provides impact-resistance, such as physical
assault with a hammer, an axe, etc. The plastic provides
little in the way of bullet-resistance. The glass, which is
much harder than plastic, flattens the bullet and thereby
prevents penetration. This type of bullet-resistant glass
is usually 70-75 mm thick
| Is This Answer Correct ? | 24 Yes | 3 No |
Explain how to adjust pump pressure
In a boiler Natural gas flow 10,000 N cubic meter and combustion air flow 22,000 cubic meter, how I convert gas flow N cubic meter to cubic meter to maintain fuel air ratio? Thank you. ashekullah
what is diffusion heat transfer
what is the difference between impulse and reaction turbines ?
40 Answers Alstom, ATMS, NTPC,
What is meant by counter flow heat exchanger?
What are the causes of failure of boiler tubes ?
what is a presure relife valve in a diesel generator.
what is the motro?
which type of material is F125?
"In a four-stroke diesel engine, In what engine exhaust valve will open?"
What is the difference between machine and machine tool?
Hello sir, I am Rajaram. I have finished DME (Diploma in Mechanical Engineering). I would like to attend BHEL supervisor examination. So i want which type of questions can i prepare. & give previous supervisor examinations questions. Reply my mail (rajaramsptc@gmail.com)
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)