Top 250+ Solved Mechanical Measurements MCQ Questions Answer
Q. Which of the following materials has macimum gaga factor
a. Nichrome
b. Isoelastic
c. Karma
d. None of the above
e. Any of the above
Q. The most sensitive thermocouple out of the following
a. copper-constantan
b. chromel-constantan
c. iron-constantan
d. None of the above
e. Any of the above
Q. Invar, the least expensible steel alloys used for measuring tapes contains about 30% of
a. Vanadium
b. Cobalt
c. Aluminium
d. Copper
e. Nickel
Q. The statement "The most probable value of an observed quantity available from a given set of observation is the one for which the sum of the square of errors is a minimum" is known as
a. Principle of square errors
b. Pythogorus theorem
c. Principle of least squares
d. Law of square probability
e. Law of errors
Q. For bridge circuit of strain gauge which source of power will be ideal?
a. High frequency ac source
b. Low frequency ac source
c. Difficulties in connections and high cost of auxiliary equipment
d. Low voltage of source
e. High voltage dc source
Q. The degree of perfection used in instruments, techniques are observations is known as
a. Accuracy
b. Precision
c. Least Count
d. None of the above
e. Any of the above
Q. An electrometer is used for the measurement of
a. Voltages
b. Currents
c. Both (A) and (B) above
d. None of the above
e. 14
Q. A synchro is
a. A variable reluctance transducer
b. A parabolic transducer
c. An angular position transducer
d. A synchronizing transducer
e. Any of the above
Q. The errors which form inexperience of the observer are known as
a. Personal errors
b. Mistakes
c. Training errors
d. Accidental errors
e. Handling errors
Q. The duty cycle of a pulse of width 2 micro sec and repetition frequency 4 kHz is
a. 0.5
b. 0.008
c. 0.05
d. 0.0006
e. 0.00008
Q. Which of the following device cannot be used to measure pressure?
a. Pirani gauge
b. Strain gauge
c. LVDT
d. Manometer
e. Bolometer
Q. If a measuring tape is too long as compared to standard, the error will be known as
a. Manufacturing error
b. Natural error
c. Superficial error
d. Personal error
e. Instrumental error
Q. An iron-constantan thermocouple can be used for the temperature
a. ?175?C to 900?C
b. ?250?V to 1500?C
c. ?373?C to 1800?C
d. 0?C to 2500?C
e. 0?C to 600?C
Q. For measuring the temperature of a boiler furnace which one of the following is the appropriate thermometer?
a. Optical pyrometer
b. Bimetallic thermometer
c. Thermocouple
d. Resistance thermometer
e. Any of the above