MCQ
41. A beam of length L is loaded as w kg/m uniformly maximum bending moment is.....
wL²/4
wL²/10
wL²/8
wL²/10
42. Two parallel side of a trapezium are a and b, it's height is h, it's CG from base is at
π(a+b) 3h
hb+2a 3 b+a
3b+a 8a+2b
2h b+2a 3 b+a
43. Hole kept in a retaining wall for seepage of water is_. a. b. c. d. Answer: b.
Brick hole
Weep hole
steam hole
Black hole
44. Strength in cube test in relation to to cylinder test is more by .
5%-10% (approx)
10%-15% (approx)
15%-20% (approx)
20%-30% (approx)
45. Ratio of cement and sand for plastering of beam column etc. is
1:3
1:4
1:6
1:7
46. Measure taken for prevention of dampness of a floor is.
R.C.C
D.P.C
Plaster
Lime concrete
47. Casting material needed for a slab is 1250 cft. If amount of cement is 10% then cement required_
125bag
130bag
100bag
107 bag