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থিউরি অব স্ট্রাকচার MCQ
41. The proportion of lime and sand in the mortar normally used in brick constructions are:
1:2
1:6
1:4
1:8
42. The roof type suitable in plains where rainfall is meagre and temperature is high is:
Pitched and sloping roof
Flat roof
Shell roof
None of these
43. Disinfection of water results in-
Removal of turbidity
Removal of hardness
Killing of disease bacteria
Removal of taste
44. In a pre-stressed member, it is advisable to use:
Low strength concrete only.
High strength concrete only.
Low strength concrete but high tensile steel.
High strength concrete and high tensile steel.
45. The transverse reinforcements provided at right angles to the main reinforcements in a slab--
Distributed load
Resist the temperature stress
Resist the shrinkage stress
All of the above
46. Uniformity coefficieny of a soil is:
equal to or greater than 1
equal to 1
equal to or less than 1
none of these
47. The maximum permissible limit for iron in drinking water is:
0.1 mg/L
0.3-1 mg/L
2-2.5 mg/l.
5 mg/L
48. Which types of forces are generated during earthquake?
Vertical Shear
Horizontal Shear
Combination of both horizontal & vertical shear
Bending moment
49. After pre-stressing process is completed, loss of stress occurs due to-
Shrinkage of concrete
Creep of concrete
Elastic shortening of concrete
All of the above
50. A soil consolidated under the existing over- burden pressure, is called:
Pre-consolidated
Normally consolidated
Over-consolidated
None of these
51. When a cohesionless soil attains quick condition, it looses:
Shear strength
Bearing capacity
Both (ক) and (খ)
Neither (ক) and (খ)
52. The type of bond in a brick masonry containing altenate courses of stretcher and headres is called:
Flemish bond
English bond
Stretcher bond
Header bond
53. The bending moment of cantilever beam shown below figure at 'A' is:
Zero
8 T-m
16 T-m
14 T-m
54. Machine foundation is subjected to:
Static loads
Wind loads
Dynamic loads
Static and dynamic loads
55. The moment at a hinge will be:
Infinity
Zero
Depends upon acting force
None of these
56. Standard BOD is measured at:
20°C-1 day
25°C-3 day
20°C-5 day
30°C-5 day
57. The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called-
Density of liquid
Specific gravity of liquid
Compressibility of liquid
Surface tension of liquid
58. Plane and geodetic surveying are classification of surveying based on:
Methodology
Earth's curvature
Ojbect of survey
Instrument
59. Loss Angeles testing machine is used to conduct:
Abrasion test
Attrition test
Crushing strength test
Impact test
60. The entrained air in concrete-
increase workability
decrease workability
decrease resistance to weathering
increase strength