As Academictask believes that practice is the most essential way to success so do visit www.academictask.com regularly and Brush up these Civil Engineering MCQs regularly to prepare for competitive & entrance exams like NTS, FPSC, ETEA, PPSC, KPPSC, etc. Prepare yourself for government job exams, interviews, and make your career in civil engineering. Aspiring students and professionals can learn and practice our Civil Engineering Questions and Answers. Here you will find questions & answers with detailed explanations so that one can understand them easily. Civil Engineering solved MCQs cover the topic like Basic Civil Engineering, Building Materials, Surveying, Soil Mechanics and Foundation Engineering, Applied Mechanics, Hydraulics, Waste Water Engineering, RCC Structures Design, Irrigation, Railways, Construction Management, Theory of Structures, Estimating and Costing, Docks and Harbours, Elements of Remote Sensing, Building Construction, Concrete Technology, Advanced Surveying, Strength of Materials, Water Resources Engineering, Water Supply Engineering, Steel Structure Design, Highway Engineering, Airport Engineering, Structural Design Specifications, Tunnelling, etc. Also, check basic Electrical engineering MCQs here.

71. The constituent of cement which is responsible for all the undesirable properties of cement is____________?

A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. tetra calcium alumino ferrite

72. As per IS specifications, the maximum final setting time for ordinary Portland cement should be_______________?

A. 30 minutes
B. 1 hour
C. 6 hours
D. 10 hours

73. Study the following statements. (1) Hydraulic lime is suitable for white washing, (2) Fat lime is suitable for whitewashing, (3) Hydraulic lime is suitable for making mortar, (4) Fat lime is suitable for making mortar. The correct answer is______________?

A. (1) and (4)
B. (2) and (3)
C. (1) and (2)
D. (3) and (4)

74. Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below ?

A. Both A and R are true and R is correct explanation of A
B. Both A and R are true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

75. The main constituent which imparts hydraulicity to hydraulic lime is______________?

A. calcium oxide
B. silica
C. clay
D. water

76. The main constituent of cement which is responsible for initial setting of cement is_________________?

A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. all of the above

77. For testing compressive strength of cement, the size of cube used is_______________?

A. 50 mm
B. 70.6 mm
C. 100 mm
D. 150 mm

78. Early attainment of strength in rapid hardening cement is mainly due to_______________?

A. gypsum
B. finer grinding
C. tricalcium silicate
D. tricalcium aluminate

79. According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than________________?

A. 7 MPa
B. 11.5 MPa
C. 16 MPa
D. 21 MPa

80. The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?

A. 10 minutes
B. 30 minutes
C. 60 minutes
D. 600 minutes

Leave a Reply