Top 250+ Solved Mechanical Measurements MCQ Questions Answer
Q. A piezoelectric crystal can be used to measure
a. Temperature
b. Velocity
c. Acceleration
d. Flow
e. All of the above
Q. Rochelle salts are used
a. As piezoelectric crystals
b. For colour identification
c. As dectors of gamma rays
d. For polarisation
e. For photography
Q. Which of the following can be used as sensing element for an instrument?
a. Spring
b. Proving ring
c. Bourdon tube
d. Diaphragm
e. Any of the above
Q. Spot the odd one out
a. Vacuum gage
b. Pirani gage
c. Strain gage
d. None of the above
e. Any of the above
Q. A geodimeter is based on the principle of
a. Propagation of modulated light waves
b. Optics
c. Reflection of light waves
d. X-rays
e. Microwaves
Q. 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?
a. 0.075?C
b. 1.5?C
c. 7.5?C
d. 0.75?C
e. 3?C
Q. Which of the following temperature is highest?
a. Melting point of lead
b. Melting point of steel
c. Melting point of gold
d. Melting point of zinc
e. Melting point of tungsten
Q. Meter accuracy is determined by
a. Least reading possible on the scale
b. One fourth scale deflection
c. Thickness of the pointer
d. Half scale deflection
e. Full scale deflection
Q. A pirani gauge is used to measure
a. Pressures above 100 kg/cm2
b. All pressures
c. Pressure upto 100 kg/cm2
d. Very low pressures
e. Atmospheric pressure
Q. The freezing temperature of mercury is
a. ? 230?C
b. ? 139?C
c. ? 39?C
d. None of the above
e. Any of the above
Q. Natural error in measurement may be due to
a. Humidity
b. Temperature
c. Wind
d. Gravity
e. Any of the above
Q. The minimum change in the measured variable which produces an effective response of the instrument is known as
a. Hysteresis
b. Deviation
c. Resolution sensitivity
d. Accuracy
e. Precision
Q. A polarograph is used for the analysis of
a. Solids
b. Liquids
c. Gases
d. All of the above
e. None of the above
Q. Under force-current analogy, mass is considered analogous to
a. Capacitance
b. Reciprocal of resistance
c. Current
d. Resistance
e. Reciprocal of capacitance
Q. Under force-voltage analogy, spring constant is considered analogous to
a. Reciprocal of resistance
b. Reciprocal of inductance
c. Reciprocal of capacitance
d. Reciprocal of impedance
e. None of the above