Top 250+ Solved Mechanical Measurements MCQ Questions Answer
Q. The accuracy depends upon
a. Precision of instrument
b. Precision of method
c. Good planning
d. All of the above
e. None of the above
Q. Which of the following is the area meter?
a. venturimeter
b. orifice meter
c. rotameter
d. None of the above
e. Any of the above
Q. A error that always follows the same definite mathematical or physical law is known as
a. Detectable error
b. Cumulative error
c. Mathematical error
d. Systematic error
e. Physical error
Q. Which of the following is not a source of power?
a. Solar cell
b. Photovoltaic cell
c. Thermo-couple
d. Photoelectric cell
e. 15?C
Q. A hot wire anemometer is used to measure
a. Gas velocities
b. Liquid discharges
c. Pressure of gases
d. Very low pressures
e. Diameter of fine particles
Q. Freeqing point of mercury is
a. ? 98.87?C
b. ? 48.80?C
c. ? 38.87?C
d. None of the above
e. Any of the above
Q. Which of the following transducers is preferred for measurements involving sound
a. thermocouple
b. Kundt's tube
c. peizoelectric pick up
d. None of the above
e. Any of the above
Q. Which of the following magnetic material has least value of (B.H.)max?
a. Alnico
b. Cobalt steel
c. Carbon steel
d. 3.92 second
e. Alcomax
Q. A load cell is essentially a
a. Strain gauge
b. Photo voltaic cell
c. Thermistor
d. Thermocouple
e. Photoconductive device
Q. Bolometers are used for measurement of
a. Thermal radiations
b. Electromagnetic, radiations
c. Manetic hysteresis loop area
d. Intensity of light
e. All of the above
Q. Which of the following strain gauge material has the highest value of gauge factor?
a. 1
b. Manganin
c. Nichrome
d. Constantan
e. Soft iron
Q. Ceremets are
a. resistance elements
b. veriable capacitances
c. variable inductances
d. None of the above
e. Any of the above
Q. The maximum allowable limit that a measurement may vary from the true value is known as
a. expected error
b. permissible error
c. Range of error
d. None of the above
e. Any of the above
Q. A pirani gauge works on the principle of change of
a. Capacitance
b. Electrical resistivity
c. Relative humidity
d. Thermal conductivity of medium
e. Conductance