For dynamic strain measurement, the Wheatstone bridge used is of ______________ type ?

Related Mcqs:

1. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is___________________?

   A. 0
   B. 0.33
   C. 0.44
   D. 0.25

2. ______________ circuit is most commonly used to measure strain with the help of a strain gauge?

   A. Ballast
   B. Voltage balancing potentiometric
   C. Simple current sensitive
   D. None of these

3. On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the ______________ of the input signal?

   A. Frequency
   B. Amplitude
   C. Damping
   D. None of these

4. A metal having a Poisson’s ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is________________?

   A. -0.8
   B. 0.8
   C. +0.08
   D. -0.24

5. The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for ______________ at room temperature ?

   A. Air
   B. Water
   C. Mercury
   D. Alcohol

6. Strain hardening effect in a metal subjected to cold working is due to the ______________ mechanism?

   A. Fracture
   B. Dislocation
   C. Slip
   D. Twinning

7. Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of ______________ will facilitate the most accurate measurement of the temperature ?

   A. Copper
   B. Steel
   C. Aluminium
   D. Brass

8. In Newton’s law of viscosity, which states that the shear stress is proportional to the _____________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient) ?

   A. V2
   B. 1/V2
   C. 1/Vg
   D. Vg

9. Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of__________________?

   A. 1 : 1
   B. 1 : 2
   C. 2 : 1
   D. 1 : 4

10. Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?

    A. Slip
    B. Fracture
    C. Winning
    D. Dislocation