### ME8501- Metrology and Measurments - Unit-5 Two marks

__Subject Name:__ Metrology and Measurments

__Subject Name:__

__Subject Code:__ ME8501

__Subject Code:__

## B.E. Mechanical Engineering - semester 05

Anna University Regulation 2017 Mechanical 5th sem ME8501(

**Metrology and Measurments**) 2 marks for 5th unit is provided below. ME8501 all units 2 marks,**Metrology and Measurments all units notes**, syllabus are listed down for students to utilize it for scoring maximum marks with our study materials.## 1.Define force.

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## 2.What are the load cells?

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## 3.What is the function of load cell?

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## 4.State any two principles of force measurment.

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## 5.List of the devices used to measure the force.

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## 6.Differentiate between primary and secondary transducers.

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## 7.Give the basic principle of equal arm balance.

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## 8.Give the basic principle for elastic force meter (proving ring).

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## 9.Differentiate between force and torque.

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## 10.List any two methods employed for measuring torque.

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## 11.Name the instruments used for measurement of torque.

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## 12.Give the basic principle of mechanical torsion meter.

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## 13.What is the purpose of strain gauge?

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## 14.Classify the types of strain gauges.

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## 15.Mention the need for using strain gauge in wheatstone network circuits.

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## 16.Outline the advantages to be gained by the use of electrical resistance strain gauge factor device in both static and dynamic condition.

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## 17.Mention a few materials used in binding of strain gauges.

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## 18.What is meant by pressure?

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## 19.List out the instruments used to measure pressure.

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## 20.Name any four elements that can be used in elastic pressure transducer.

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## 21.What is a kentometer?

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## 22.Give the principle of bulk modulus or electrical resistance pressure gauge.

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## 23.What are the instruments used to measure linear velocity?

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## 24.Mention some instruments that measure angular velocity.

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## 25.Mention the types of dynamometers.

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## 26.Differentiate between quantity meter and flow meter.

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## 27.Mention the uses of rotameter, hotwire anemometer.

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## 28.Mention the types of electrical strain gauges.

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## 29.Mention some instruments used to measure negative pressures.

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## 30.Discuss the principle of operation of magnetic flow meter.

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## 31.Give the principle of hot wire anemometer.

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## 32.Outline the advantages of venturimeter.

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## 33.How is the flow measured using ultrasonic flow meter?

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## 34.Why is coefficient of discharge introduced in flow meters?

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## 35.State the principle of operation of displacement type flow meters.

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## 36.Give any two applications of an ultrasonic flow meter.

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## 37.Name any four inferential types off flow meters.

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## 38.Name a flow meter that is independent of density.

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## 39.What are the unique features of laser anemometers?

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## 40.Give the classification of temperature measuring instruments.

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## 41.List the instruments used for measuring temperature.

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## 42.What are the physical characteristics of temperature measuring sensor?

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## 43.What is the use of thermometer and pyrometer?

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## 44.What is the working principle of bimetallic thermometer?

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## 45.What is the principle involved in fluid expansion thermometer?

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## 46.What is thermistor?

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## 47.What are the diferent types of bimetallic sensors?

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## 48.Give some bimetallic strip metals?

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## 49.What are the different types of thermistor?

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## 50.What are the laws of thermocouples?

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## 51.What are the different types of thermocouple materials?

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## 52.Give the composition and useful temperature range of any one commercial thermocouple.

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## 53.What is thermopile?

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## 54.What are the types of pyrometers?

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## 55.Define the principles of electrical resistance thermistor.

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## 56.What are the metals used in thermistor?

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## 57.What are the liquids used in a fluid expansion thermometer?

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## 58.Give the basic principle of hydraulic load cell.

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## 59.What is the general rule used for accelerometers to provide satisfactory performance?

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## 60.Define torque.

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## 61.What is the purpose of torque measurement?

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## 62.Name the basic principle of strain gauge load cell.

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## 63.What are the differences between orifice and venturimeter

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## 64.Differentiate between quantity meter and flow meter.

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## 65.Write the working principle of hot wire anemometer.

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## 66.Name the two types of hot wire anemometer.

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