Mechanical Measurements Set 9

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This set of Mechanical Measurements Multiple Choice Questions & Answers (MCQs) focuses on Mechanical Measurements Set 9

Q1 | Venturi tubes are generally made of
  • stainless steel
  • aluminium
  • cast iron
  • phosphor bronze
  • Any of the above
Q2 | Which of the following is an indirect method of pressure measurement
  • McLeod gage
  • Thermal conductivity gage
  • Diaphragm
  • All of the above
  • Any of the above
Q3 | The standard gold point temperature is
  • 1063?C
  • 1360?C
  • 1963?C
  • 1630?C
  • 1000?C
Q4 | Under force-current analogy, viscous friction coefficient is considered analogous to
  • Reciprocal of resistance
  • Reciprocal of inductance
  • Reciprocal of capacitance
  • Reciprocal of impedance
  • None of the above
Q5 | Elastic members such as Bourdon tube are used to
  • change force into velocity
  • change force into displacement
  • change force into stress
  • None of the above
  • Any of the above
Q6 | A polarograph is used for the analysis of
  • solids
  • liquids
  • gases
  • None of the above
  • Any of the above
Q7 | Which of the following material has minimum gage factor
  • Monel
  • Manganin
  • Constantan
  • None of the above
  • Any of the above
Q8 | The carrier material used with strain gauges at room temperature is
  • Epoxy
  • Bakelite
  • Impregnated paper
  • Iron cement
  • Rubber
Q9 | Which of the following is a non-contact type thermometer?
  • Alcohol thermometer
  • Vapour pressure thermometer
  • Optical pyrometer
  • Thermocouple
  • Bimetal strip thermometer
Q10 | Which of the following is not a piezoelectric material?
  • Quarz
  • Sodium chloride
  • Ammonium dihydrogen phosphate
  • All of the above
  • As dectors of gamma rays
Q11 | A thermometer has a time constant of 3.5 seconds. It is quickly taken from a temperature 0?C to water bath at 100?C. What temperature will be indicated after 1.5 second?
  • 100?C
  • 20?C
  • 50?C
  • 15?C
  • 35?C
Q12 | The display of a digital numerical read out instrument is achieved by
  • Photo tube
  • Ionization of gases
  • Light dependent resistors
  • Heated filaments
  • Light emitting diodes
Q13 | The amount of moisture in air is measured by
  • Photo conductive cell
  • Thermistor
  • Single psychrometer
  • Orsat apparatus
  • Mass spectrometer
Q14 | Thermocouples are generally used for temperature measurements upto
  • 500?C
  • 1600?C
  • 250?C
  • 1000?C
  • 2600?C
Q15 | 1 Joule is equal to
  • 107 ergs
  • 105 ergs
  • 1010 ergs
  • 1012 ergs
  • 109 ergs
Q16 | In the above case the natural frequency be will
  • 68 Hz
  • 26 Hz
  • 13 Hz
  • 91 Hz
  • 39 Hz
Q17 | Spot the odd one out
  • Difficulties in connections and high cost of auxiliary equipment
  • Vacuum gauge
  • Strain gauge
  • Pirani gauge
  • Compound pressure gauge
Q18 | Which of the following device is primarily used to measure pressure?
  • Bourdon tube
  • Kundts tube
  • Hygrometer
  • Rotameter
  • All of the above
Q19 | 1 watt is the same as
  • 103 ergs/s
  • 1010 ergs/s
  • 106 ergs/s
  • 105 ergs/s
  • 107 ergs/s
Q20 | Which of the following is not a self-generating transducer?
  • Thermopile
  • Ionization chamber
  • Moving coil generator
  • Photovoltaic cell
  • All of the above
Q21 | For ocean sounding where the depth of water is too much and where continuous and accurate record of the depth of water below a boat or ship is to be made, the instrument generally used is known as
  • Tellurometer
  • Sound meter
  • Sound box
  • Fathometer
  • dB meter
Q22 | Surface plates made of granite posses property
  • are free from residual stresses
  • there is less tendency for granite to creep
  • granite does not corrode
  • All of the above
  • Any of the above
Q23 | In the above problem the thermal time constant will be
  • 2.55 hrs
  • 2.05 hrs
  • 1 hour
  • 1.44 hrs
  • 3.36 hrs
Q24 | Odometer is used to measure
  • threshold odours of gases
  • composition of gases
  • distances
  • None of the above
  • Any of the above
Q25 | The melting point of tungsten is around
  • 2800?C
  • 1256?C
  • 3400?C
  • 1156?C
  • 4400?C