Instrumentation Transducers Questions and Answers – Analog Indicators

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Analog Indicators”.

1. Indicating measurements are used for _______________
a) Static measurements
b) Dynamic masurements
c) Both static and dynamic measurements
d) None of the mentioned
View Answer

Answer: a
Explanation: Indicating instruments are helpful in static measurements.

2. Indicating instruments can be used for measuring _____________
a) AC quantities
b) DC quantities
c) Both AC and DC
d) None of the mentioned
View Answer

Answer: c
Explanation: Indicating instruments can be used for measuring both AC and DC quantities.

3. Which of the following have a low loading effect?
a) Electronic system
b) Electrical system
c) Both have equal effect
d) None of the mentioned
View Answer

Answer: a
Explanation: Electronic systems have low loading effect than an electrical system.
advertisement
advertisement

4. Which of the following act as end devices in the pneumatic system?
a) Bourden tubes
b) Mechanical gears
c) Electronic devices
d) All of the mentioned
View Answer

Answer: a
Explanation: Due to the use of air pressure, bourden tubes are used as the end devices are pneumatic system.

5. Scale calibration of indicating instruments are always linear.
a) True
b) False
View Answer

Answer: b
Explanation: Scale calibration may not be always linear and accuracy in reading becomes poorer in portions of scale where it is cramped.
Sanfoundry Certification Contest of the Month is Live. 100+ Subjects. Participate Now!

6. Majority of indicators are _________________
a) Current operated devices
b) Voltage operated devices
c) Pressure operated devices
d) None of the mentinoned
View Answer

Answer: a
Explanation: Most of the indicators are current-operated devices and they can be used for both AC and DC.

7. AC indicators are used at frequency __________________
a) Very low value of less than 1Hz
b) Less than 200Hz
c) Greater than 1KHz
d) Higher value of about 1MHz
View Answer

Answer: b
Explanation: AC indicators are used for frequency less than 200 Hz.
advertisement

8. PMMC devices in indicators create __________________
a) Stationary magnetic field
b) Rotating magnetic field
c) Electric field
d) None of the mentioned
View Answer

Answer: a
Explanation: Permanent magnet moving coil instruments in indicators are used for creating stationary magnetic field.

9. Which of the following represents a stationary part of PMMC device?
a) Coil
b) Control system
c) Magnetic system
d) None of the mentioned
View Answer

Answer: c
Explanation: In PMMC devices, magnatic system remains a stationary part.
advertisement

10. Which of the following represent a function of spring in PMMC device?
a) Control system
b) Path for current in and out of coil
c) Both control and path for current
d) None of the mentioned
View Answer

Answer: c
Explanation: Spring in PMMC devices act as both control system and path for current in and out of the coil.

Sanfoundry Global Education & Learning Series – Instrumentation Transducers.

To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.