Top 250+ Solved Mechanical Measurements MCQ Questions Answer
Q. LVDT converts
a. linear displacement into electrical signal
b. pressure into electrical output
c. strain into electrical output
d. None of the above
e. Any of the above
Q. 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
Q. 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
Q. A rotameter can be used to measure
a. Viscosity
b. Flow
c. Specific gravity
d. Pressure of wind
e. Rotation
Q. The main advantage of a CRO is
a. it is a voltage sensitive instrument
b. an inertialess beam of electrons acting as a pointer
c. a fluorescent screen acts as scale
d. None of the above
e. Any of the above
Q. An error that under the same conditions will always be of the same size and sign is known as
a. Mistake
b. Detectable error
c. Accidental error
d. Systematic error
e. Cumulative error
Q. Nitrocellulose cement is used with strain gauge as
a. Base material
b. Carrier
c. Adhesive
d. Lead
e. None of the above
Q. Which of the following could be the source of random error in an instrument?
a. Friction in instrument movement
b. Backlash
c. Mechanical vibrations
d. Hysteresis in elastic members
e. Any of the above
Q. Which of the following strain sensing elements has the highest value of gauge factor
a. Advance
b. Nichrome
c. Manganin
d. Soft iron
e. Any of the above
Q. Under force-voltage analogy, velocity is considered as analogous to
a. Resistance
b. Charge
c. Current
d. Magnetic flux
e. Inductance
Q. Which of the following is an electric tachometer?
a. Stroboscopic tachometer
b. Eddy current tachometer
c. Drag type tachometer
d. Ignition type tachometer
e. All of the above
Q. Phosphor bronze Bourdon tube can be used of pressures upto
a. 15 kg/cm2
b. 10 kg/cm2
c. 70 kg/cm2
d. 5 kg/cm2
e. 170 kg/cm2
Q. Which of the following has the number of significant figures other than 3?
a. 0.346 K?
b. 1.65 V
c. 542 A
d. 14
e. 4 x 102
Q. Which of the following device can be used to measure temperatures of hot bodies radiating energy in visible spectrum
a. Bolometer
b. Optical pigometer
c. Thermopile
d. Piezometer
e. Planimeter
Q. A strobotron is
a. A tachogenerator
b. A two winding dc generator
c. A hot cathode gaseous discharge tube
d. A device for temperature measurement
e. None of the above