Day 1 AP-GRAS Seminar
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the design principle a Measurement Microphone is based on?
Carbon Microphone Principle
Dynamic Microphone Principle
Ribbon Microphone Principle
Condenser Microphone Principle
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the output of a Measurement Microphone?
It´s a current output proportional to the pressure fluctuation obtained by the diaphragm
It´s a voltage output proportional to the pressure fluctuation obtained by the diaphragm
It´s a charge output proportional to the pressure fluctuation obtained by the diaphragm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum output voltage swing of CCP Microphone Sets?
28 V peak - peak
8 V peak
13 V peak - peak
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the microphone polarization voltage required from the DAQ/Analyzer to drive a pre-polarized microphone set?
+200 VDC
+100 VDC
0 VDC
+200 VAC
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The larger the diaphragm of the microphone is...
The lower the sensitivity and the higher the frequency range
The higher the sensitivity and lower frequency range
The size of a microphone´s diaphragm has nothing to do with the sensitivity and frequency range
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a WS3F measurement microphone?
It´s a 3" working standard measurement microphone according to IEC 61094
It´s a 1/2" working standard free-field microphone according to IEC 61094
It´s a 1/4" working standard free-field microphone according to IEC 61094
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. What will happen with the frequency response if you have a lot of dirt and dust on the diaphragm?
The upper cut-off frequency will increase
The upper cut-off frequency will decrease
Nothing will happen, as the mass of the diaphragm is 100 times higher than the mass of the dirt and dust
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