Commercial Filters And Sound Control

Question 1

What’s the benefit when you reduce sound levels and clean air

Answer 1

Increase occupants comfort levels healthy work environment

Question 2

The amount of acoustic and filtration result in What

Answer 2

Noise level air
cleaning level

Question 3

How to eliminate vibration and noise

Answer 3

Spring isolator
Isolation hangers
Concrete filled base on rubber mounts and cork pads

Question 4

what are inertia Bases used for

Answer 4

Pumps ,compressors and large centrifugal fans 

Question 5

Isolation mounts consist of the following types

Answer 5

Isolation rails
Isolation bases
Inertia bases
Rooftop isolation rules

Question 6

What base is designed for concrete mould

Answer 6

Interia bases

Question 7

Freestanding
Restrain spring
Housed spring
Rubber in sheerAre isolators available for

Answer 7

Centrifugal fan

Question 8

additional support is required what Spring should be used

Answer 8

Housed spring

Question 9

For material to maintain Absorbent elements What not Has’s to be done

Answer 9

Not to be painted

Question 10

What sound product is used to control in higher capacity ducts

Answer 10

K-27

Question 11

How to attach acoustical duct lining

Answer 11

Adhesives pins clips and staples

Question 12

Two types of available duct liner

Answer 12

Flexible
Rigid 

Question 13

Who’s rules need to be followed when installing duct liners

Answer 13

SMACNA

Question 14

Sound of Attenuation three feet long can absorb how any feet 

Answer 14

250 ft

Question 15

Primary intended purpose for noise generators

Answer 15

For heating and cooling rather than performance of sound control

Question 16

How many dB Can duct rumble reach

Answer 16

65 to 95

Question 17

Air cleaning is accomplished by what kind of filters

Answer 17

Media filter
Electrostatic effect
Washing and scrubbing

Question 18

Cell type washer remove how many airborne particle

Answer 18

70-90 percent

Question 19

Two most common filter test

Answer 19

Dust spot
Weight test

Question 20

Merv rating filters are based on

Answer 20

Worst case performance filter through six stages of dust loading

Question 21

Earthly matter smaller than 100 µm would best be described

Answer 21

Dust

Question 22

How many micrograms in a linear measure in 1 m

Answer 22

1 million

Question 23

To be classified high-efficiency filter efficiency expert greater than

Answer 23

40%

Question 24

Most efficient type air washer

Answer 24

Cell type

Question 25

Transmission of sound for one opening through the ductwork be defined as

Answer 25

Cross talk

Question 26

To prevent vibrations from floor mounts transmitting through floor you can use

Answer 26

Rubber mounts 

Question 27

Particles from weeds trees flowers and other forms of will be described as

Answer 27

Pollen

Question 28

Where are Attenuation is important

Answer 28

On both sides of the duct system