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This set of Mechanical Measurements Multiple Choice Questions & Answers (MCQs) focuses on Mechanical Measurements Set 8
Q1 | Which of the following has the number of significant figures other than 3?
- 0.346 K?
- 1.65 V
- 542 A
- 14
- 4 x 102
Q2 | Which of the following device can be used to measure temperatures of hot bodies radiating energy in visible spectrum
- Bolometer
- Optical pigometer
- Thermopile
- Piezometer
- Planimeter
Q3 | A strobotron is
- A tachogenerator
- A two winding dc generator
- A hot cathode gaseous discharge tube
- A device for temperature measurement
- None of the above
Q4 | A transducer which converts an input physical quantity into electrical output in the form of pulse is known as
- primary transducer
- analogous transducer
- digital transducer
- None of the above
- Any of the above
Q5 | Which of the following Bourdon tube material can be used for very high pressures?
- K-monel
- Alloy steel
- Phosphor bronze
- Stainless steel
- Beryllium copper
Q6 | The adhesion between the surface of property wrung gage blocks is of the order of
- 0-5 atmospheres
- 5-10 atmospheres
- 20-30 atmospheres
- none of the above
- Any of the above
Q7 | Under force-current analogy, displacement is considered as analogous to
- Voltage
- Magnetic flux linkage
- Induced emf
- Current
- Mutual inductance
Q8 | The temperature of freezing mercury is
- ?225?C
- ?39?C
- ?69?C
- 0?C
- ?169?C
Q9 | The function of the reference electrode in a pH meter is to
- Measure average pH value
- Produce a constant voltage
- Provide temperature compensation
- Produce a constant current
- None of the above
Q10 | In a digital instrument "over ranging" means
- Parameter being measured is varying constantly
- All digits indicte reading of 8
- Half digit is switched off
- Half digit is switched on
- Only three digits are switched on
Q11 | Decibels are basically measures of
- power gain
- voltage fain
- current gain
- None of the above
- Any of the above
Q12 | The maximum allowable limit that a measurement may vary from the true value is called
- Expected error
- Range of error
- Permissible error
- Least error
- Safe error
Q13 | Accelerometer is the transducer for
- Vibration
- Shock
- Absolute motion
- All of the above
- None of the above
Q14 | Which of the following material has maximum temperature coefficient of resistance
- Nichrome V
- Isoelastic
- Manganin
- Monel
- Any of the above
Q15 | A tellurometer works on the principle of
- X-rays
- Optics
- Reflection of light
- High frequency radio waves
- Propagation of modulated waves
Q16 | The salinometer measures
- Density of brine
- Specific gravity of molasses
- Sould level
- Temperature in cryogenic regions
- Intensity of illumination
Q17 | A hot wire anemometer is used to measure
- pressure of liquids
- very low pressure
- gas velocities
- None of the above
- Any of the above
Q18 | Ionisation gauge is used to measure pressures
- Below 3 microns
- Above 3 microns
- Above 100 microns
- Between 100 and 200 microns
- Above 200 microns
Q19 | Which of the following torque transducer needs battery or rectified ac source for its operation?
- Strain gauge
- Differential transformer
- Variable permeability transducer
- Optical transducer
- All of the above
Q20 | Synchronization in a CRO means
- holding a pattern on the screens without creep
- continuously monitoring the trace
- adjusting sweep frequency
- All of the above
- Any of the above
Q21 | Ceremets are
- Resistance elements
- Ganged condensers
- Variable capacitors
- Multi-turn potentiometers
- Defects in transducers
Q22 | Flow in an open channel can be measured by
- a manometer
- orifice
- nozzle
- None of the above
- Any of the above
Q23 | The flow in open channel can be measured by
- Venturimeter
- Rotameter
- Pitot tube
- Orifice
- Turbine meter
Q24 | A geodimeter is used for the measurement of
- area
- angles
- distance
- None of the above
- Any of the above
Q25 | Temperature of a hot moving body can be measured by
- a radiation pyrometer
- an optical pyrometer
- a resistance thermometer
- None of the above
- Any of the above