Civil Engineering MCQs [Set 3]

21. During pudding
(A) Molten metal is kept clear of the fuel
(B) Carbon is converted into carbonic acid gas
(C) Silicon forms a slag
(D) All the above

22. Early attainment of strength in rapid hardening cement is mainly due to
(A) Gypsum
(B) Finer grinding
(C) Tri-calcium silicate
(D) Tri-calcium aluminate

23. Pick up the correct statement from the following:
(A) Quick lime is obtained by burning pure lime stone
(B) Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%
(C) Poor lime is obtained by burning lime stone containing impurities more than 5%
(D) All the above

24. Which of the following cements contains maximum percentage of dicalcium silicate?
(A) Ordinary Portland cement
(B) Low heat cement
(C) Rapid hardening cement
(D) Sulphate resisting cement

25. Pick up the incorrect statement from the following:
(A) Hydraulic lime is generally obtained by burning kankar
(B) Hydraulic lime sets slowly as compared to fat lime
(C) Hydraulic lime is generally used in lime mortar
(D) None of these

26. Which of the following stresses is used for identifying the quality of structural steel?
(A) Ultimate stress
(B) Yield stress
(C) Proof stress
(D) None of the above

27. Quick lime
(A) Generates heat when added to water
(B) Reacts with carbon dioxide
(C) May be used for white-washing
(D) All the above

28. Assertion A : Normally turpentine oil is recommended as thinner for indoor painting.
Reason R : Turpentine oil is costlier than other thinners.
Select your answer according to the coding system given below:
(A) Both A and R is true and R is the correct explanation of A
(B) Both A and R is 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

29. Putty is
(A) Made with finely powdered chalk and linseed oil
(B) Used for fixing glass panes
(C) Softened by a solution of pearl ash and quick-lime soaked in water
(D) All the above

30. A mortar joint in masonry which is normal to the face of wall is known as
(A) Bed joint
(B) Wall joint
(C) Cross joint
(D) Bonded joint

Updated: 29th June 2019 — 8:27 PM

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