Ch 15 - Distributed Paging Sys

Question 1

15–3 principles of design

types of patients systems =

(2)

Answer 1

* Centrally amplified systems

* Distributed amplified systems

Question 2

15–7 sound pressure level (SPL)

Jet airplane takeoff =

Answer 2

Exceeds 100

Question 3

15–7 sound pressure level (SPL)

Doctor’s exam room =

Answer 3

55

Question 4

15–7 sound pressure level (SPL)

Levels above 95 dB =

Answer 4

Unsuitable for paging except in extreme situations

Question 5

15–8 loudspeaker

Paging =

Answer 5

10 DB above the ambient level

Question 6

15–9 ceiling loudspeaker distribution patterns

Two most common loudspeakers =

Answer 6

* Hexagonal

* Square

Question 7

15–9 ceiling loudspeaker distribution patterns

Hexagonal =

Answer 7

Preferred pattern

Question 8

Fig 15.1

Answer 8

Hexagonal loudspeaker pattern

Question 9

Fig 15.2

Answer 9

Square loudspeaker pattern

Question 10

15–9 ceiling loudspeaker distribution patterns

Distance between ceiling loudspeaker =

Answer 10

Twice the ceiling height

Question 11

15–10 wall-mounted loudspeakers

One loudspeaker =

Answer 11

600 ft.²

Question 12

15–10 hallway loudspeakers

Heavy traffic hallways =

Normal traffic always =

Answer 12

*8 ft

* twice the ceiling height minus the listener ear height