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MCQ
3081. The bending moment on a section is maximum where shear force is-
minimum
maximum
changing
zero
3082. According to standard specifications the full strength of concrete is achieved after days-
7
14
21
28
3083. The modules of elasticity for 400 (60 grade) is approximately equal to-
214 kn/mm²
274 kn/mm²
314 kn/mm²
414 kn/mm²
3084. The chief ingredient of paint is-
alcohol
oil
drier
pigment
3085. The shear force of a simply supported beam of length 'l' carrying a uniformly distributed load OD w per unit length is-
0
w1/4
w1/2
w¹ 1
3086. The unit bearing capacity of footing in sand-
decreases with depth of footing
decreases with width of footing
increases with depth of footing
increases with width of footing
3087. The unit weight of mild steel - kg/cum.
490
7850
6750
5550
3088. The slenderness ratio is the ratio of. প্লেন্ডারনেস রেশিও হলো)
area of column to least radius of gyration (কলামের আকার ও নূন্যতম রেডিয়াস অব জাইরেশন এর অনুপাত)
length of column to least radius of gyration (কলামের দৈঘ্য ও নূন্যতম রেডিয়াস অব জাইরেশন এর অনুপাত)
least radius of gyration to area of column (নূন্যতম রেডিয়াস অব জাইরেশন ও কলামের আকারের অনুপাত)
least radius of gyration to length of column (নূন্যতম রেডিয়াস অব জাইরেশন ও কলামের দৈর্ঘ্যের অনুপাত)
3089. The maximum water cement ratio for durable concrete is-
0.2
0.4
0.8
2.8
3090. At the neutral axis of a beam the shear stress is-
zero
minimum
maximum
infinity
3091. A continuous beam is one which is-
fixed at both end
fixed at one end free at other end
supported on more than two support
extending beyond the support
3092. When a load on the free end of a cantilever beam is increased, failure will occur-
at the free end
at the fixed end
at the middle of the beam
distance 2L/3 from end
3093. A beam fixed at one end and free at the other end-
cantilever
truss
false beam
none of these
3094. The slump test of concrete is used to measure-
workability
homogeneity
impact
tensile strength
3095. Moment of inertia of a circular section about its diameter (d) is (d ব্যাস বিশিষ্ট বৃত্তাকার ক্ষেত্রের মোমেন্ট অব ইনার্শিয়া)
π d³ /126
πd³/32
πd/32
πd²/64
3096. A class brick should have a minimum crashing strength of -
7 MN/m²
10 MN/m²
12.5 MN/m²
16 MN/m²
3097. The specific gravity of sandy soil is-
1.2
1.8
2.7
2.8
3098. A good building stone is one which does not absorb more than of it's weights of water after one day immersion.
5%
10%
15%
25%
3099. The setting time of the cement is the governing factor for-
mixing of concrete
placing of concrete
compaction of concrete
all of these
3100. One cubic meter of water weights-
100 litter
250 litter
500 litter
1000 litter