civil engineering MCQs – Page 5

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
81. Minimum width of landing should be_______________?
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A. one fourth the width of stairs

B. twice the width of stairs

C. half the width of stairs

D. equal to width of stairs
82. Which of the following metamorphic rocks has the most weather resisting characteristics ?
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A. quartzite

B. lime stone

C. slate

D. marble

83. The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is______________?
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A. less than 1 in beams but greater than 1 in channels

B. less than 1

C. equal to 1

D. greater than 1

84. Which of the following is a mineral ?
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A. granite

B. basalt

C. quartz

D. syenite

85. Expansion Joints in masonry walls are provided in wall lengths usater than_______________?
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A. 20 m

B. 30 m

C. 40 m

D. 10 m

86. Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below ?
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A. Both A and R are true and, R is the correct explanation of A

B. Both A and R are true but R is not the correct explanation of A

C. A is true but R is false

D. A is false but R is true

87. Which of the following cements contains maximum percentage of dicalcium silicate?
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A. ordinary Portland cement

B. sulphate resisting cement

C. rapid hardening cement

D. low heat cement
88. Based on the following rocks and minerals, select the correct statement, quartz, shale, basalt, granite, marble, gypsum, mica______________?
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A. there is no sedimentary rock

B. quartz and mica are minerals

C. basalt and marble are the only metamorphic rocks

D. granite is the only igneous rock

89. Le Chateliers device is used for determining the_______________?
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A. soundness of cement

B. compressive strength of cement

C. tensile strength of cement

D. setting time of cement

90. As per IS specifications, the maximum final setting time for ordinary Portland cement should be_______________?
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A. 30 minutes

B. 6 hours

C. 1 hour

D. 10 hours
91. Percentage of silica in a good brick earth lies between_______________?
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A. 70 to 80%

B. 5 to 10%

C. 50 to 60%

D. 20 to 30%

92. Which of the following timbers is suitable for making sports goods ?
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A. mulberry

B. sal

C. deodar

D. mahogany

93. Early attainment of strength in rapid hardening cement is mainly due to_______________?
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A. tricalcium aluminate

B. gypsum

C. finer grinding

D. tricalcium silicate

94. Which of the following gradients exerts maximum influence on properties of steel?
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A. manganese

B. sulphur

C. iron

D. carbon
95. The stone suitable for rubble masonry should be____________?
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A. tough

B. heavy

C. hard

D. light

96. How many commandments are given in PEC Code of Ethics?
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A. 20

B. 5

C. 10

D. 30

97. The process of mixing clay, water and other ingredients to make brick is known as______________?
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A. drying

B. moulding

C. kneading

D. pugging

98. Number of vertical joints in a stretcher course is x times the number of joints in the header course, where x is equal to_________________?
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A. 2

B. 4-Jan

C. 1/2

D. 1

99. For water bound macadam roads in localities of heavy rainfall, the recommended value of camber is_______________?
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A. 1 in 48

B. 1 in 60

C. 1 in 36

D. 1 in 30

100. The main constituent of cement which is responsible for initial setting of cement is_________________?
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A. dicalcium silicate

B. tricalcium silicate

C. all of the above

D. tricalcium aluminate