Mechanical Measurements Set 6

On This Page

This set of Mechanical Measurements Multiple Choice Questions & Answers (MCQs) focuses on Mechanical Measurements Set 6

Q1 | A hot wire anemometer is a variable
  • Inductance transducer
  • Current transducer
  • Capacitance transducer
  • Frequency transducer
  • Resistance transducer
Q2 | A piezoelectric crystal can be used to measure
  • Temperature
  • Velocity
  • Acceleration
  • Flow
  • All of the above
Q3 | Rochelle salts are used
  • As piezoelectric crystals
  • For colour identification
  • As dectors of gamma rays
  • For polarisation
  • For photography
Q4 | Which of the following can be used as sensing element for an instrument?
  • Spring
  • Proving ring
  • Bourdon tube
  • Diaphragm
  • Any of the above
Q5 | Spot the odd one out
  • Vacuum gage
  • Pirani gage
  • Strain gage
  • None of the above
  • Any of the above
Q6 | A geodimeter is based on the principle of
  • Propagation of modulated light waves
  • Optics
  • Reflection of light waves
  • X-rays
  • Microwaves
Q7 | The lead zone is a certain pyrometer is 0.125 percent of span. The calibration is 400?C to 1000?C. What temperature change might occur before it is detected?
  • 0.075?C
  • 1.5?C
  • 7.5?C
  • 0.75?C
  • 3?C
Q8 | Which of the following temperature is highest?
  • Melting point of lead
  • Melting point of steel
  • Melting point of gold
  • Melting point of zinc
  • Melting point of tungsten
Q9 | Meter accuracy is determined by
  • Least reading possible on the scale
  • One fourth scale deflection
  • Thickness of the pointer
  • Half scale deflection
  • Full scale deflection
Q10 | A pirani gauge is used to measure
  • Pressures above 100 kg/cm2
  • All pressures
  • Pressure upto 100 kg/cm2
  • Very low pressures
  • Atmospheric pressure
Q11 | The freezing temperature of mercury is
  • ? 230?C
  • ? 139?C
  • ? 39?C
  • None of the above
  • Any of the above
Q12 | Natural error in measurement may be due to
  • Humidity
  • Temperature
  • Wind
  • Gravity
  • Any of the above
Q13 | The minimum change in the measured variable which produces an effective response of the instrument is known as
  • Hysteresis
  • Deviation
  • Resolution sensitivity
  • Accuracy
  • Precision
Q14 | A polarograph is used for the analysis of
  • Solids
  • Liquids
  • Gases
  • All of the above
  • None of the above
Q15 | Under force-current analogy, mass is considered analogous to
  • Capacitance
  • Reciprocal of resistance
  • Current
  • Resistance
  • Reciprocal of capacitance
Q16 | Under force-voltage analogy, spring constant is considered analogous to
  • Reciprocal of resistance
  • Reciprocal of inductance
  • Reciprocal of capacitance
  • Reciprocal of impedance
  • None of the above
Q17 | LVDT converts
  • linear displacement into electrical signal
  • pressure into electrical output
  • strain into electrical output
  • None of the above
  • Any of the above
Q18 | A pitot tube converts
  • Pressure head into velocity head
  • Velocity head into pressure head
  • Pressure head into temperature rise
  • Velocity head into temperature rise
  • None of the above
Q19 | Rosette strain gauges are used for measurement of strain in
  • Horizontal direction only
  • Vertical direction only
  • Complex parts
  • All of the above
Q20 | A rotameter can be used to measure
  • Viscosity
  • Flow
  • Specific gravity
  • Pressure of wind
  • Rotation
Q21 | The main advantage of a CRO is
  • it is a voltage sensitive instrument
  • an inertialess beam of electrons acting as a pointer
  • a fluorescent screen acts as scale
  • None of the above
  • Any of the above
Q22 | An error that under the same conditions will always be of the same size and sign is known as
  • Mistake
  • Detectable error
  • Accidental error
  • Systematic error
  • Cumulative error
Q23 | Nitrocellulose cement is used with strain gauge as
  • Base material
  • Carrier
  • Adhesive
  • Lead
  • None of the above
Q24 | Which of the following could be the source of random error in an instrument?
  • Friction in instrument movement
  • Backlash
  • Mechanical vibrations
  • Hysteresis in elastic members
  • Any of the above
Q25 | Which of the following strain sensing elements has the highest value of gauge factor
  • Advance
  • Nichrome
  • Manganin
  • Soft iron
  • Any of the above