Ventilation Chapter 14

Question 0

Why is ppv more popular?

Answer 0

Effectiveness and firefighter safety

Question 1

Banked elevators may safely be used if they terminate at least ___?

Answer 1

5 floors below fire floor

Question 2

Compared with negative pressure ventilation, ppv is approx ____ as effective at removing contaminates?

Answer 2

Twice

Question 3

Which is more effective, series or parallel ppv?

Answer 3

Series

Question 4

Of two blowers of unequal size are used in series, place _____ one about ___ft back from entrance?

Answer 4

Larger one

2 ft

Question 5

What does smell of exhaust indicate?

Answer 5

Exhaust hole is not large enough.

Question 6

Removing screens will improve ventilation on windows by ?

Answer 6

50%

Question 7

Ppv is ineffective in winds about ?

Answer 7

25 mph

Question 8

In multiple story start?

Answer 8

Lowest level

Question 9

Ppv is ineffective for distances over ____ft?

Answer 9

1,000ft

Question 10

Drafts in ioen stair cases from exterior to roof can have up to?

Answer 10

3-6mph

Question 11

Cross ventilation are ineffective at ?

Answer 11

25 floors

Question 12

How much co will ppv fan introduce into structure?

Answer 12

130-220ppm

Question 13

Key to ppv in ballon frame?

Answer 13

Opening exhaust first as not to spread fire

Question 14

Open windows on the ____ side first?

Answer 14

Leeward

Question 15

4 basic types of openings used for ventilation?

Answer 15

Natural openings
Natural construction openings
Heat openings
Direction openings.

Question 16

Hear openings are considered _____ ventilation

Answer 16

Offensive

Question 17

Direction are ____ ventilation

Answer 17

Defensive

Question 18

Too priority in any ventilation?

Answer 18

Improving interior environment.

Question 19

Small opening to see wether smoke or fire are below you?

Answer 19

Kerf cut

Question 20

Small triangular hole?

Answer 20

Plug

Question 21

Junction of a roof and a wall by roofing materials

Answer 21

Cricket

Question 22

Rotating ventilators are ___ more effective than if it was taken off?

Answer 22

30%

Question 23

4 major types of exterior styles that use panelized roofs are?

Answer 23

Exterior pilaster

Frame stucco and masonry

Concrete tilt up