FIRES 4 Lexan Windows

Question 1

LEXAN has an impact resistance ______ times greater than safety glass.

Answer 1

250 x’s

Sec 1.2

Question 2

LEXAN is used to replace glass in high vandalism areas.
For security purposes, LEXAN is installed in the first floor windows only of many
buildings owned or operated by Nynex, formerly the N. Y. Telephone Company.
Agree or Disagree

Answer 2

DISAGREE!!
At times it is installed on cellar windows and second floor windows
Sec 2.3

Question 3

What are the 2 best tools that can be used to cut Lexan ?

Answer 3

3. 2 LEXAN can be cut quickly and easily by using the Portable Power Saw equipped with the carbide tipped blade.
4. 3 The Sawzall, with the coarse tooth wood blade, is also effective on LEXAN

Question 4

Can The portable electric hand saw be used to cut Lexan ?

Answer 4

YES!! BUT…..
The portable electric hand saw can be used but the wood cutting blade tends to gum
up quickly. A carbide tipped blade would be more effective.
Sec 3.8

Question 5

What 3 tools are ineffective on Lexan ?

Answer 5

3. 4 The Superior Air Hammer (air chisel) is ineffective.
4. 5 The Oxyacetylene torch is ineffective.
5. 6 The pike axe is ineffective

Question 6

Which tool is unsafe to cut Lexan ?

Answer 6

3.7 The chain saw is unsafe to use since it tends to shatter the LEXAN and throws chips like shrapnel.
Sec 3.7

Question 7

Lexan is self extinguishing and has one third the thermal conductivity of glass
true or False

Answer 7

TRUE!!

Sec 1.5

Question 8

In Nynex buildings, the LEXAN is installed on the inner or outer side of window ?

Answer 8

on the inner side of the window opening by the use of screws

Question 9

What must be removed first in order to Ventilate Lexan ?

Answer 9

The wire screens and the wire glass windows must be
removed before the LEXAN can be attacked.
Sec 3.10

Question 10

When might be possible to use

portable ladders to push the LEXAN inward.

Answer 10

If the window is at the ground level or lower.

Sec 3.10