MCQOPTIONS
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MCQOPTIONS
This section includes 222 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Measurements knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is an indirect method of pressure measurement? |
| A. | Mcleod gauge |
| B. | Thermal conductivity gauge |
| C. | Ionisation gauge |
| D. | Radioactive vacuum gauge |
| E. | All of the above |
| Answer» F. | |
| 2. |
In general, in which part of the scale does the pointer indicate most accurately? |
| A. | In the last third of the scale |
| B. | Around full capacity of the scale |
| C. | In the second quarter of the scale |
| D. | In the first quarter of the scale |
| E. | Around middle of the scale |
| Answer» B. Around full capacity of the scale | |
| 3. |
Which of the following is not a non-contact type thermometer? |
| A. | Disappearing filament type pyrometer |
| B. | Colour pyrometer |
| C. | Photoelectric tube pyrometers |
| D. | Total intensity radio meters |
| E. | Suction pyrometer |
| Answer» F. | |
| 4. |
Ionisation gauges can be used for measurement of pressures as low as |
| A. | 0.0001 micron |
| B. | 0.01 micron |
| C. | 0.001 micron |
| D. | 0.1 micron |
| E. | 0.000001 micron |
| Answer» F. | |
| 5. |
Basically D' Arsonwal movement is |
| A. | voltage sensitive |
| B. | current sensitive |
| C. | power sensitive |
| D. | None of the above |
| E. | Any of the above |
| Answer» C. power sensitive | |
| 6. |
Pascal is the unit of |
| A. | force |
| B. | torque |
| C. | energy |
| D. | None of the above |
| E. | Any of the above |
| Answer» E. Any of the above | |
| 7. |
Flow of water in a pipe of 250 cm diameter can be measured by |
| A. | Pitot tube |
| B. | Rotameter |
| C. | Manometer |
| D. | Venturimeter |
| E. | Orifice plate |
| Answer» B. Rotameter | |
| 8. |
Manganin does not contain |
| A. | Zinc |
| B. | Copper |
| C. | Manganese |
| D. | Nickel |
| E. | All of the above |
| Answer» B. Copper | |
| 9. |
A LVDT has |
| A. | Two primary coils and two secondary coils |
| B. | Two primary coils and one secondary coil |
| C. | 15?C |
| D. | One primary coil and one secondary coil |
| E. | One primary coil and two secondary coils |
| Answer» E. One primary coil and two secondary coils | |
| 10. |
In a CRO, ouput from which type of oscillator is applied to the horizontal deflection plate |
| A. | square wave oscillator |
| B. | sinusoidal wave oscillator |
| C. | sawtooth wave oscillator |
| D. | None of the above |
| E. | Any of the above |
| Answer» D. None of the above | |
| 11. |
Under force voltage analogy mass is considered analogous to |
| A. | Industance |
| B. | Capacitance |
| C. | Resistance |
| D. | Current source |
| E. | Admittance |
| Answer» B. Capacitance | |
| 12. |
Piezoelectric crystal possesses the ability to convert |
| A. | electrical energy into mechanical energy |
| B. | strain energy into electrical energy |
| C. | mechanical energy into electrical energy |
| D. | all the above |
| E. | Any of the above |
| Answer» E. Any of the above | |
| 13. |
Under the voltage analogy, charge is considered analogous to |
| A. | Momentum |
| B. | Mass |
| C. | Displacement |
| D. | Velocity |
| E. | Force |
| Answer» D. Velocity | |
| 14. |
Under force voltage analogy, viscous friction coefficient is not considered analogous to |
| A. | Resistance |
| B. | Multual inductance |
| C. | Capacitance |
| D. | Current |
| E. | Charge |
| Answer» B. Multual inductance | |
| 15. |
Pico x tera |
| A. | 105 ergs |
| B. | 100,000 |
| C. | 1 |
| D. | 1000 |
| E. | 1,000,000,000 |
| Answer» D. 1000 | |
| 16. |
In measurements using two strain gauges, the purpose of dummy strain gauge is |
| A. | To unllify the errors due to temperature |
| B. | Improve stability of the measuring system |
| C. | Measure lateral strain |
| D. | Increase the sensitivity of measuring system |
| E. | None of the above |
| Answer» B. Improve stability of the measuring system | |
| 17. |
Which of the following device can be used to give an indication for temperature changes? |
| A. | Thermistor |
| B. | Bourden gauge |
| C. | Transistor |
| D. | Thermocouple |
| E. | LED |
| Answer» E. LED | |
| 18. |
The duty cycle of a pulse of width 2 micro sec and repetition frequency 4 kHz is |
| A. | 0.5 |
| B. | 0.008 |
| C. | 0.05 |
| D. | 0.0006 |
| E. | 0.00008 |
| Answer» C. 0.05 | |
| 19. |
The standard oxygen point temperature is |
| A. | 182.97?C |
| B. | ?213.99?C |
| C. | 163.45?C |
| D. | ?182.27?C |
| E. | 0?C |
| Answer» E. 0?C | |
| 20. |
The joints of a phosphor-bronze Bourdon tubes are |
| A. | Welded |
| B. | Brazed |
| C. | Soldered |
| D. | Jointed by adhesives |
| E. | Screwed |
| Answer» D. Jointed by adhesives | |
| 21. |
Which of the following can be used as thermal detector? |
| A. | Thermistor |
| B. | Pyrometer |
| C. | Thermocouple |
| D. | Resistance thermometer |
| E. | Any of the above |
| Answer» F. | |
| 22. |
Which of the following temperature is highest. |
| A. | Melting point of gold |
| B. | melting point of silver |
| C. | melting point of steel |
| D. | None of the above |
| E. | Any of the above |
| Answer» E. Any of the above | |
| 23. |
A simple ac amplifier may be used to amplify dc input through use of an additional circuit component known as |
| A. | tuned amplifier |
| B. | carrier |
| C. | chopper |
| D. | None of the above |
| E. | Any of the above |
| Answer» D. None of the above | |
| 24. |
The electricl resistarice of a wire is |
| A. | Directly proportional to diameter and inversely proportional to length |
| B. | Directly proportional to length and inversely proportional to diameter |
| C. | Directly proportional to length and diameter |
| D. | Inversely proportional to resistance and length |
| E. | None of the above |
| Answer» B. Directly proportional to length and inversely proportional to diameter | |
| 25. |
Which of the following will be the most alkaline solution? |
| A. | pH 4 |
| B. | pH 1 |
| C. | pH 7 |
| D. | pH 10 |
| E. | pH 14 |
| Answer» F. | |
| 26. |
The errors which form inexperience of the observer are known as |
| A. | Personal errors |
| B. | Mistakes |
| C. | Training errors |
| D. | Accidental errors |
| E. | Handling errors |
| Answer» C. Training errors | |
| 27. |
The degree of fementation in brewing pressure can be measured by |
| A. | Bolometer |
| B. | Conductivity meter |
| C. | pH meter |
| D. | Smoke meter |
| E. | Turbidity meter |
| Answer» D. Smoke meter | |
| 28. |
The resistance of a strain gauge should be high |
| A. | To increase sensitivity |
| B. | To reduce hysteresis effect |
| C. | To swamp out the effects of variations of resistance in other parts of the bridge |
| D. | None of the above |
| E. | 100 to 5000 |
| Answer» C. To swamp out the effects of variations of resistance in other parts of the bridge | |
| 29. |
A geodimeter is based on the principle of |
| A. | Propagation of modulated light waves |
| B. | Optics |
| C. | Reflection of light waves |
| D. | X-rays |
| E. | Microwaves |
| Answer» B. Optics | |
| 30. |
A pirani gauge is used to measure |
| A. | Pressures above 100 kg/cm2 |
| B. | All pressures |
| C. | Pressure upto 100 kg/cm2 |
| D. | Very low pressures |
| E. | Atmospheric pressure |
| Answer» E. Atmospheric pressure | |
| 31. |
If a steam pressure of 10 kg/cm2 is to be measured, the range of pressure gauge should be |
| A. | 0 to 100 kg kg/cm2 |
| B. | 0 to 10 kg kg/cm2 |
| C. | 0 to 20 kg kg/cm2 |
| D. | ?10 kg/cm2 to + 10 kg kg/cm2 |
| E. | 5 to 11 kg kg/cm2 |
| Answer» D. ?10 kg/cm2 to + 10 kg kg/cm2 | |
| 32. |
Under force-voltage analogy, spring constant is considered analogous to |
| A. | Reciprocal of resistance |
| B. | Reciprocal of inductance |
| C. | Reciprocal of capacitance |
| D. | Reciprocal of impedance |
| E. | None of the above |
| Answer» C. Reciprocal of capacitance | |
| 33. |
Rochelle salts are used |
| A. | As piezoelectric crystals |
| B. | For colour identification |
| C. | As dectors of gamma rays |
| D. | For polarisation |
| E. | For photography |
| Answer» B. For colour identification | |
| 34. |
Nitrocellulose cement is used with strain gauge as |
| A. | Base material |
| B. | Carrier |
| C. | Adhesive |
| D. | Lead |
| E. | None of the above |
| Answer» D. Lead | |
| 35. |
A pitot tube converts |
| A. | Pressure head into velocity head |
| B. | Velocity head into pressure head |
| C. | Pressure head into temperature rise |
| D. | Velocity head into temperature rise |
| E. | None of the above |
| Answer» C. Pressure head into temperature rise | |
| 36. |
A rotameter can be used to measure |
| A. | Viscosity |
| B. | Flow |
| C. | Specific gravity |
| D. | Pressure of wind |
| E. | Rotation |
| Answer» C. Specific gravity | |
| 37. |
A hot wire anemometer is a variable |
| A. | Inductance transducer |
| B. | Current transducer |
| C. | Capacitance transducer |
| D. | Frequency transducer |
| E. | Resistance transducer |
| Answer» F. | |
| 38. |
Which of the following can be used as sensing element for an instrument? |
| A. | Spring |
| B. | Proving ring |
| C. | Bourdon tube |
| D. | Diaphragm |
| E. | Any of the above |
| Answer» F. | |
| 39. |
The minimum change in the measured variable which produces an effective response of the instrument is known as |
| A. | Hysteresis |
| B. | Deviation |
| C. | Resolution sensitivity |
| D. | Accuracy |
| E. | Precision |
| Answer» D. Accuracy | |
| 40. |
The freezing temperature of mercury is |
| A. | ? 230?C |
| B. | ? 139?C |
| C. | ? 39?C |
| D. | None of the above |
| E. | Any of the above |
| Answer» D. None of the above | |
| 41. |
Which of the following temperature is highest? |
| A. | Melting point of lead |
| B. | Melting point of steel |
| C. | Melting point of gold |
| D. | Melting point of zinc |
| E. | Melting point of tungsten |
| Answer» F. | |
| 42. |
A rotameter is used to measure |
| A. | velocity of liquids |
| B. | pressure of gases |
| C. | specific gravity of liquids |
| D. | None of the above |
| E. | Any of the above |
| Answer» B. pressure of gases | |
| 43. |
Rosette strain gauges are used for measurement of strain in |
| A. | Horizontal direction only |
| B. | Vertical direction only |
| C. | Complex parts |
| D. | All of the above |
| Answer» D. All of the above | |
| 44. |
McLeod gage is used to measure |
| A. | pressure |
| B. | vacuum |
| C. | Flow rate |
| D. | None of the above |
| E. | Any of the above |
| Answer» B. vacuum | |
| 45. |
A piezoelectric crystal can be used to measure |
| A. | Temperature |
| B. | Velocity |
| C. | Acceleration |
| D. | Flow |
| E. | All of the above |
| Answer» D. Flow | |
| 46. |
A load cell is essentially a |
| A. | Strain gauge |
| B. | Photo voltaic cell |
| C. | Thermistor |
| D. | Thermocouple |
| E. | Photoconductive device |
| Answer» B. Photo voltaic cell | |
| 47. |
To measure the speed of a shaft without physical contact the method used is |
| A. | Digital method |
| B. | Variable reluctance tachometer |
| C. | Stroboscope |
| D. | Any of the above |
| E. | All of the above |
| Answer» E. All of the above | |
| 48. |
Under force-current analogy, velocity is considered analogous to |
| A. | Voltage |
| B. | Inductance |
| C. | Resistance |
| D. | Magnetic flux |
| E. | None of the above |
| Answer» B. Inductance | |
| 49. |
A measure of the system's ability to handle transients is known as |
| A. | Amplitude response |
| B. | Rise time |
| C. | Phase response |
| D. | All of the above |
| E. | Any of the above |
| Answer» C. Phase response | |
| 50. |
The standard silver point temperature is |
| A. | 1155.5?C |
| B. | 887.95?C |
| C. | 666?C |
| D. | 860.5?C |
| E. | 788.90?C |
| Answer» E. 788.90?C | |