Chapter 10 - Ordinary Construction

Question 1

Chief common characteristic of ordinary construction

Answer 1

Exterior walls made of masonry

Question 2

What plastic structural members add another layer of fire safety problems

Answer 2

Open cell polystyrene panels

Question 3

What are a hint that a cockloft exists

Answer 3

Ventilators

Question 4

In a downtown business or commercial building what walls are the bearing walls

Answer 4

Side walls

Question 5

Interior masonry walls or a column girder and beam system must be used for a four greater than what width

Answer 5

25 ft

Question 6

Were these are visible they indicate where the wall is strongest and we’re not to attempt to breach the wall

Answer 6

Masonry column

Question 7

Terracotta is used in what type of facings

Answer 7

Ornamental

Question 8

Ordinary masonry walls have no resistance to what type of movement

Answer 8

Lateral

Question 9

When is an example of a hazard of early fireproof buildings that can be found in ordinary construction

Answer 9

Unsupported marble stairs

Question 10

What four areas are the problems presented to the fire department by ordinary construction

Answer 10

Masonry wall problems

Stability of the interior column, girder, and beam system

Void spaces

The masonry wall as a barrier to fire extension

Question 11

If the source of smoke cannot be found where should you check

Answer 11

Check for plastic insulation in the walls

Question 12

A beam that carries weight of the wall above an opening it’s called what

Answer 12

Lintel

Question 13

What is often an indicator of poor brickwork

Answer 13

Parging

Question 14

Parapit walls are particularly subject to what

Answer 14

Weather deterioration

Question 15

A horizontal crack may indicate that the wall is being what

Answer 15

Pushed out by steel roof beams that are elongating in summer heat

Question 16

If any arch unit is out the window or door frame then becomes what

Answer 16

Undesigned structural post and beam

Question 17

All walls are inherently

Answer 17

Unstable

Question 18

Three ways of stabilizing a wall

Answer 18

Buttresses or masses of masonry outside the wall

Pilasters or columns built inside the wall

Wall columns built within the wall

Question 19

Concrete is inherently

Answer 19

Non-combustible

Question 20

What is a basic sign that a wall is distressed

Answer 20

Braced

Question 21

How can you identify a wall that was tied to the floor to make the structure more rigid

Answer 21

Spreaders in a regular pattern

Question 22

How is an eccentric load counterbalanced

Answer 22

Tying the wall to the interior structure

Question 23

Was suspended beams the key question is

Answer 23

What are the suspension rods tied to

Question 24

Breaker masonry walls are often specially reinforced to resist lateral impact when

Answer 24

That separate one electrical transformer from another

Question 25

The scoring to cut glass or gypsum board

Answer 25

Plain of weakness

Question 26

Wooden floor beams fitted tightly into the wall may act as what

Answer 26

A series of levers on the wall

Question 27

The interior structure consists of

Answer 27

Floors Any necessary interior support for the floors Any suspended loads Roof

Question 28

What is the only way to connect wood beams to wood girders and receive the full benefit of the time it takes the wood to burn through

Answer 28

Set the beams atop the girder

Question 29

The effective strength of the wood under fire attack is determined by what

Answer 29

Size of the thinnest portion

Question 30

What must be made whenever an opening is provided in a wooden floor

Answer 30

Beam to beam connections

Question 31

What are used to connect wooden columns and to end

Answer 31

Pintels

Question 32

What is the chief cause of failure in buildings with cast iron columns

Answer 32

Unsafe connections

Question 33

What type of floors are much more quickly consumed by fire

Answer 33

Floors with single fitness of plywood and carpeting

Question 34

The best roof is one on which

Answer 34

The roof beans rest on girders

Question 35

A firefighter stepping onto a roof as lightly as possible still imposes a momentary load on the roof at what times his at rest weight

Answer 35

At least twice

Question 36

What is a superior construction method

Answer 36

Equipment is erected on steel beams that are supported on exterior walls

Question 37

The thrust of a truss is

Answer 37

Downward

Question 38

The thrust of an arch is

Answer 38

Outward

Question 39

What type of void is exemplified by wood stud construction with gypsum interior finish

Answer 39

Partially combustible

Question 40

Which NFPA requires sprinklers in many types of combustible void spaces

Answer 40

NFPA 13

Question 41

If circumstances are fair for a bull what may accomplish extinguishment in the void

Answer 41

Expansion of steam created by hose streams hitting burning material

Question 42

Lowering the ceiling of old buildings is most easily accomplished how

Answer 42

Constructing a new ceiling

Question 43

The generation of carbon monoxide and concealed spaces can be as much as how many times greater than it would be in the open

Answer 43

50 times

Question 44

What is the flammable range of carbon monoxide

Answer 44

12.5 to 74%

Question 45

What is carbon monoxide ignition temperature

Answer 45

1128° F

Question 46

In ordinary construction rarely is any provision made to prevent the extension of fire where

Answer 46

Through stairways and hallways

Question 47

When must masonry buildings have interior bearing walls

Answer 47

When they have spans greater than 25 ft

Question 48

How are interior masonry walls distinguished from wooden interior walls

Answer 48

They have greater thickness

Question 49

When might masonry walls provide interior load carrying capacity

Answer 49

In large buildings of ordinary construction

Question 50

When should fire doors be provided

Answer 50

When openings have been made in walls to connect buildings

Question 51

What is of limited value against radiant heat on a building

Answer 51

Wired glass

Question 52

What is a structural wall that is common to two buildings

Answer 52

Party wall

Question 53

A party wall is ___ then two separate walls

Answer 53

Center

Question 54

Ordinary construction buildings are usually how many stories

Answer 54

3 to 4 stories

Question 55

Ordinary construction buildings are as tall as how many stories

Answer 55

Seven stories

Question 56

What size buildings are higher will typically have a Class I or class III standpipe system

Answer 56

Four-story buildings are higher

Question 57

What is the largest and most serious concealed space

Answer 57

Cock loft

Question 58

What is an effective tactic to stop the horizontal spread of fire in long buildings

Answer 58

Vertical ventilation, including the trench cut

Question 59

What side of the building is the parapet wall usually located on

Answer 59

Front side

Question 60

What is the worst or most dangerous wall collapse

Answer 60

When the wall breaks at ground level and falls straight out along its full height

Question 61

If you find materials different from the rest of the wall you are probably into what

Answer 61

A wall column under a major load

Question 62

When breaching a wall what type of cut do you make

Answer 62

Try triangular cut with the apex at the top

Question 63

Material that absorbs water should be stored how many feet away from masonry walls to allow for expansion

Answer 63

At least one foot away

Question 64

What should you watch for to indicate walls are in distress

Answer 64

Ornamental stars

Question 65

Exposed 2x10 solid wood joists last how many minutes

Answer 65

18 minutes

Question 66

The attachment of a half inch gypsum board ceiling raise the endurance to

Answer 66

44 minutes

Question 67

Have you volumes of boiling smoke that persist even after the visible fire has been well controlled indicate

Answer 67

Fire and a void

Question 68

Why is an alleyway dangerous to operate a hose line in

Answer 68

You cannot establish a collab zone in an alley