A noisy machine on a plant room concrete floor:
A) May direct sound more strongly in a particular direction
B) Has no sound directivity
C) Sends direct sound field through the floor
D) Only creates a reverberant sound field
E) Gains a benefit from sound energy absorbed by the floor
Correct Answer:
Verified
Q1: Presbycusis is:
A)Hearing loss due to long term
Q2: Hearing range is:
A)20 Hz to 20 kHz
B)2
Q3: What does the building services engineer do
Q4: Sound travels through air in the form
Q5: Reference point for sound level measurement is:
A)Lowest
Q6: A gas turbine rotates at 60000 RPM
Q7: Which item of plant does not normally
Q8: Which is the smallest increment of sound
Q9: Explain the meaning of SWL:
A)Sound pressure level,
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