Chapter 5 Forcible Entry

Question 1

What factors are of primary importance when evaluating forcible entry operations at an incident?

Answer 1

Speed
Safety
Size of the opening

Question 2

Windows are comprised of what three principle components?

Answer 2

Frame
Sash
Glazing

Question 3

Why are glass-coating films used?

Answer 3

Energy conservation
Noise reduction
Protection from falling glass

Question 4

What are the three primary components of security bars?

Answer 4

Horizontal bars
Vertical bars
Lag bolts

Question 5

What are the major components of a door assembly?

Answer 5

Door
Jamb
Strike
Lock

Question 6

What should you always do first before trying to force open a door?

Answer 6

Try opening the door

Question 7

Where are the hinges located on outward-opening doors?

Answer 7

Exterior of the door and frame

Question 8

A rotary saw that is primarily used for forcible entry operations should be carried with the blade in what specific position?

Answer 8

Outboard

Question 9

As pertains to padlocks, what is heel-and-toe locking?

Answer 9

Both legs of the shackle are engaged. Both legs must be cut to open the padlock

Question 10

How can chain-link gates be easily opened?

Answer 10

Separate hinges that are normally clamped to a post

Question 11

At a minimum, what should a forcible entry size-up encompass? (5)

Answer 11

1. Reason
2. Location of emergency
3. Construction of the obstacle
4. Method
5. Resources available

Question 12

What should fire personnel constantly evaluate when performing forcible entry?

Answer 12

Speed vs. damage

Question 13

What are the 3 methods of forcible entry?

Answer 13

1. Conventional
2. Through-the-lock
3. Power tool

Question 14

If a forcible entry operation requires significantly more than ___, or if acceptable progress in not being made, personnel should be flexible enought to try another method or tool or move to another site

Answer 14

5 minutes or so

Question 15

What are the 6 types of glazing found in windows

Answer 15

1. Plate–forms large sharp shards
2. Heat strengthened–small shards
3. Tempered–small chunks of crystalized glass
4. Laminated–adheres to plastic
5. Wired glass–wire tends to hold glass together
6. Thermoplastic (plexiglas, lexan..)

Question 16

What are the 4 basic types of windows?

Answer 16

Stationary
Sliding
Pivoting
Swinging

Question 17

Polyester window films can be how thick?

Answer 17

4.0mm

Question 18

Polycarbonate windows (lexan) are ___ stronger than safety glass.

Answer 18

250 times

Question 19

What are the 4 basic styles of doors?

Answer 19

Swinging
Sliding
Overhead
Revolving

Question 20

What are the 3 types of metal doors?

Answer 20

Kalemine
Hollow
Overhead

Question 21

What is a Kalemine metal door?

Answer 21

Metal-clad with a thin metal covering over a solid wood core.

Question 22

What is the construction of a hollow metal door?

Answer 22

14-16 gauge steel over steel ribs

Question 23

What are the 4 types of overhead doors?

Answer 23

Rolling
Sheet
Curtain
Tilt-up

Question 24

What type and thickness of glass do frame-less glass doors use?

Answer 24

Tempered glass about 3/4 inch thick

Question 25

What should you evaluate before forcing a door? (9)

Answer 25

Safety
Present condition
Purpose
Construction
Direction of travel
Security
Time
Force
Involvement

Question 26

When dealing with interior security bars, how is a rotary saw used?

Answer 26

Place cutting blade at 45 against bolt heads

Question 27

What is breaching?

Answer 27

opening of walls