Building Materials PYQs, GPSC Civil Previous Year Asked Questions

1. The strength of concrete mainly depends on

B) water cement ratio

2. Separation of water or water sand cement from a freshly concrete is known

C) bleeding

3. Strength of concrete is maximum in

C) compression

4. M10 grade of concrete approximates

A) 1 : 3 : 6 mix

5. Aggregate impact value indicates ________ of aggregate

B) toughness

6. In what context is the slum test performed ?

B) Workability of concrete

7. The size of cube for testing of concrete shall be

D) 150 × 150 × 150 mm

8. The defect caused due to over-maturity and poor ventilation of the tree is called

C) Foxiness

9. Which of the following is not an objective of seasoning of timber

D) reduction of natural defects in timber

10. Turpentine oil is used in paints as a

C) thinner

11. Shellac varnish is an example of

C) Spirit varnish

12. Distemper is a types of

A) water paint

13. Water to be used for construction purpose should be potable as per IS requirement :

A) IS 456-1978


A) ભાવનગર


C) ઔરંગઝેબ

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