Explore topic-wise MCQs in Civil Engineering.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

A single strain gauge of resistance 120 Ω is mounted along the axial direction of an axially loaded specimen of steel (E = 200 GPa).The percentage change in length of the rod due to loading is 3% and the corresponding change in resistivity of strain gauge material is 0.3%, For a Poisson's ratio of 0.3, the value of the gauge factor is

A. 1.3
B. 1.5
C. 1.7
D. 2
Answer» D. 2
Discussion
2.

For a given strain gauge, the relative change in electrical resistance to mechanical strain \(\frac{{{\rm{d}}R/R}}{{{\rm{d }}L/L}}\) is called,

A. Stress factor
B. Gauge factor
C. Resistivity
D. Poisson’s ratio
Answer» C. Resistivity
Discussion