Industrial Applications MCQs with answers: Following Multiple Choice Questions (MCQs) are based on “Industrial Applications”.
Topics: Tachometers, Sound Level Meter and some miscellaneous topics
These are related with the subject Industrial Measurement and Applications. This topic is mostly beneficial in the field of Electronics, Electrical and Mechanical Engineering.
These MCQs will be useful in various competitive examinations, entrance examinations, oral examination (Viva voce), certifications and interviews.
MCQ on Tachometer
Que.1 _____ can be measured using tachometers.
- Acceleration
- Vibration
- Angular speed
- Linear speed
✔ View Answer
Option 3: Angular speed
Que.2 ______ motor can be used as AC tachometers.
- Single phase induction
- Two phase induction
- Three phase induction
- Universal
✔ View Answer
Option 2: Two phase induction
Que.3 Identify the correct statement about sensitivity of AC and DC tachometers.
- Sensitivity of AC tachometer is very high.
- Sensitivity of DC tachometer is very high.
- Sensitivity of both is equal.
- None of the above.
✔ View Answer
Option 2: Sensitivity of DC tachometer is very high.
Que.4 The frequency of rotation in some rotating machinery can be measured by a
- VTVM
- Spectral meter
- Tachometer
- Stroboscope
✔ View Answer
Option 4: Stroboscope
Que.5 A tachometer encoder can be used for measurement of displacement
- in both the direction
- in one direction only
- its output pulses are counted only for the forward direction.
- both (2) and (3)
✔ View Answer
Option 4: both (2) and (3)
Que.6 In DC tachometer the polarity of output indicates
- polarity of connection to the electric circuit
- direction of the rotation
- both (1) and (2)
- none of these
✔ View Answer
Option 2: direction of the rotation
MCQ on Sound Level Meter
Que.7 The most suitable type of microphone for sound level meters is the
- Ribbon microphones
- condenser microphone
- Dynamic microphone
- Carbon microphone
✔ View Answer
Option 2: condenser microphone
Que.8 ______ specifies how the Sound Level Meter reacts to changes in sound pressure.
- Time weighting
- Frequency weighting
- Amplitude weighting
- Phase weighting
✔ View Answer
Option 1: Time weighting
Que.9 _______ time weightings, which are the required according to most international and national standards and guidelines.
- Frequency, Step, and Impulse
- Step, Ramp and Impulse
- Fast, Slow, and Impulse
- Fast, Slow, and Intermediate
✔ View Answer
Option 3: Fast, Slow, and Impulse
Que.10 Which meter indicates the voltage, current and wattage readings at a time?
- Watt meter
- VAW meter
- Multimeter
- All of the above
✔ View Answer
Option 2: VAW meter
Que.11 Most Real time clocks (RTCs) use a
- Colpitts Oscillator
- Clapp Oscillator
- Crystal Oscillator
- Hartley Oscillator
✔ View Answer
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