2801. The least thickness of class B cast iron (spun) pipe, is_________________?
A. 7.2 mm
B. 7.9 mm
C. 8.6 mm
D. 10 mm
✅ The correct answer is option C.
Civil Engineering
Prepare with the latest Civil Engineering MCQs with answers and explanations for exams, interviews, and job tests. Our question bank covers key topics including surveying, building materials, structural engineering, geotechnical engineering, fluid mechanics, hydraulics, transportation engineering, environmental engineering, and construction management. These Civil Engineering multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, university entry tests, and recruitment assessments. Strengthen your knowledge and problem-solving skills with our updated and comprehensive Civil Engineering MCQs.
2802. Which of the following methods of tunneling is used for long tunnels at great depths ?
A. Army method
B. Needle beam method
C. Austrian method
D. English method
✅ The correct answer is option C.
2803. By boiling water, hardness can be removed if it is due to_________________?
A. calcium sulphate
B. magnesium sulphate
C. calcium nitrate
D. calcium bicarbonate
✅ The correct answer is option D.
2804. Drifters can be used to drill_________________?
A. only up holes
B. only down holes
C. horizontal or up holes
D. horizor„al, down or up holes
✅ The correct answer is option D.
2805. The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level_______________?
A. 1500 m
B. 1505 m
C. 1475 m
D. 1485 m
✅ The correct answer is option D.
2806. Circular section of tunnels is not suitable for________________?
A. carrying water
B. non-cohesive soils
C. tunnels driven by shield method
D. placement of concrete lining
✅ The correct answer is option D.
2807. Time of concentration________________?
A. is the time taken, for precipitation
B. duration of rainfall.
C. time taken for all the ran off to reach the drain
D. time taken for the storm water to travel from the most remote point to the drain
✅ The correct answer is option D.
2808. If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are_________________________?
A. 2N
B. N + 2
C. 2 N + 1
D. 2 N + 2
✅ The correct answer is option D.
2809. Corrosion of well pipes may not be reduced by_________________?
A. reducing the draw down and the pumping rate
B. reducing the flow velocity
C. using thicker pipes
D. using screens having larger area of openings
✅ The correct answer is option D.
2810. Which one of the following is a component of a shield for tunnelling ?
A. liner plate
B. trench jack
C. stiffener
D. cutting edge
✅ The correct answer is option D.