Civil Engineering - UPSC Civil Service Exam Questions
Exercise :: UPSC Civil Service Exam Questions - Section 1
36.
The rectangular block shown in the given figure is subjected to pure shear to intensity 'q '. If BE represents the i principal plane and the principal stresses are σ1 , σ2 ; then the values of θ, σ1 and σ2 will be respectively.
A. θ°, 90°; + q and - q B. 30°, 120°; + q and - q C. 45°, 135°; + and D. 45°, 135°; + q and - q
Answer: Option D
Explanation:
37.
The maximum energy stored at elastic limit of a material is called
A. resilience B. proof resilience C. modulus of resilience D. bulk resilience
Answer: Option B
Explanation:
38.
If the pressure carried by a CBR specimen at 2.5 mm penetration is 3.5 N/mm2 , the CBR of the soil is
Answer: Option C
Explanation:
39.
A close-coiled helical spring with n coils, mean radius R and diameter d is subjected to an axial load W . What is the compression in the spring ?
Answer: Option B
Explanation:
40.
Activated sludge is the
A. resultant sludge removable from the aeration unit B. sludge settled in the humus tank C. sludge in the secondary tank post-aeration rich in microbial mass D. sludge.in the secondary tank post aeration, rich in nutrients.
Answer: Option C
Explanation:
