IA 520 CHAPTER 2 ACOUSTICS INFORMATION
ASSURANCE AND CYBER SECURITY COURSE // A+
GRADED PRESENTATION // ADVANCED SOUND ANALYSIS
AND ACOUSTIC SECURITY PRINCIPLES FOR LEARNERS //
ACADEMIC YEAR 2025/2026
(for further explanation see p. 32 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
Sound transmission class measures how much sound...
A. Is blocked by a partition
B. Is absorbed by a surface
C. Is fractured by a partition
C. Moves through a partition - THE CORRECT ANSWER -A. Is blocked
by a partition
(for further explanation see p. 33 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
Dead surfaces...
A. Deflect sound
B. Refract sound
C. Reflect sound
D. Absorb sound - THE CORRECT ANSWER -D. Absorb sound
(for further explanation see p. 34 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
, Generally speaking...
A. Combine live and dead surfaces for satisfactory acoustical
performance
B. Live surfaces are preferable to dead ones
C. Dead surfaces are preferable to live ones
D. Live and dead are matters of opinion and are not measurable
characteristics - THE CORRECT ANSWER -A. Combine live and dead
surfaces for satisfactory acoustical performance
(for further explanation see p. 34 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
When reviewing noise reduction coefficient numbers...
A. High numbers indicate that little sound will escape the area
B. Low numbers indicate that base notes will be trapped but high-pitched
sounds will escape
C. High numbers indicate that base notes will be trapped but high-
pitched sounds will escape
D. Low numbers indicate that little sound will escape the area - THE
CORRECT ANSWER -A. High numbers indicate that little sound will
escape the area
Improve speech range absorption performance measurements by:
A. Cushioning between offending noise and adjacent spaces
B. White noise
C. Dense materials and insulation in wall cavities
ASSURANCE AND CYBER SECURITY COURSE // A+
GRADED PRESENTATION // ADVANCED SOUND ANALYSIS
AND ACOUSTIC SECURITY PRINCIPLES FOR LEARNERS //
ACADEMIC YEAR 2025/2026
(for further explanation see p. 32 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
Sound transmission class measures how much sound...
A. Is blocked by a partition
B. Is absorbed by a surface
C. Is fractured by a partition
C. Moves through a partition - THE CORRECT ANSWER -A. Is blocked
by a partition
(for further explanation see p. 33 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
Dead surfaces...
A. Deflect sound
B. Refract sound
C. Reflect sound
D. Absorb sound - THE CORRECT ANSWER -D. Absorb sound
(for further explanation see p. 34 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
, Generally speaking...
A. Combine live and dead surfaces for satisfactory acoustical
performance
B. Live surfaces are preferable to dead ones
C. Dead surfaces are preferable to live ones
D. Live and dead are matters of opinion and are not measurable
characteristics - THE CORRECT ANSWER -A. Combine live and dead
surfaces for satisfactory acoustical performance
(for further explanation see p. 34 of Interior Design Materials and
Specifications by Lisa Godsey, 4th edition)
When reviewing noise reduction coefficient numbers...
A. High numbers indicate that little sound will escape the area
B. Low numbers indicate that base notes will be trapped but high-pitched
sounds will escape
C. High numbers indicate that base notes will be trapped but high-
pitched sounds will escape
D. Low numbers indicate that little sound will escape the area - THE
CORRECT ANSWER -A. High numbers indicate that little sound will
escape the area
Improve speech range absorption performance measurements by:
A. Cushioning between offending noise and adjacent spaces
B. White noise
C. Dense materials and insulation in wall cavities
