EC
Engineering Classroom
by Himalay Sen

Exams

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সালের প্রশ্ন

Access past board exam questions organized by year and subject to help you understand patterns, improve preparation, and boost your exam performance.

MCQ
321. 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
ব্যাখ্যা: ব্যাখ্যা: বৃত্তাকার ক্ষেত্রের মোমেন্ট অব ইনার্শিয়া: ভরকেন্দ্র বরাবর মোমেন্ট অব ইনার্শিয়া, 1xx=1yy= πd4 64
322. 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
323. 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
324. The specific gravity of sandy soil is-
1.2
1.8
2.7
2.8
325. According to standard specifications the full strength of concrete is achieved after days-
7
14
21
28
326. The maximum water cement ratio for durable concrete is-
0.2
0.4
0.6
0.8
327. The under weight of hard rock is-
2400 kg/m³
2500 kg/m³
2600 kg/m³
2700 kg/m³
328. The vertical depth for a channel is given by (q=unit discharge through the channel)
(q/g)1/2
(q²/g
(q³/g) 1/4
none of these
329. A long column is one whose ratio of effective length to its least internal dimension exceeds-
5
10
12
20
330. A cantilever retaining wall should not be used for heights more than
4m
6m
8m
10m
331. 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
332. At the neutral axis of a beam the shear stress is-
zero
minimum
maximum
infinity
333. The modules of elasticity for 400 (60 grade) is approximately equal to-
214 kn/mm²
274 kn/mm²
314 kn/mm²
414 kn/mm²
334. The continuous strain, which the concrete undergoes due to application of external loads, is called-
workability
bleeding
segregation
creep
335. 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)
ব্যাখ্যা: ব্যাখ্যা: কলামের প্রকৃত দৈর্ঘ্য এবং নূন্যতম রেডিয়াস অব জাইরেশন এর অনুপাতকে প্লেন্ডারনেস রেশিও বলে।
336. For reinforced cement concrete lintels and slabs the nominal size of coarse aggregate should not exceed-
10 mm
15 mm
20 mm
40 mm
337. The number of bags of cement required per cubic meter of 1:1.5:3 approximately. concrete will be
3 to 4
4 to 5
5 to 6
6 to 8
338. The bending moment on a section is maximum where shear force is-
minimum
maximum
changing
zero
339. The hydraulic mean depth or the hydraulic radius is the ratio of-
area of flow and wetted perimeter
wetted perimeter and the diameter of the pope
velocity of flow and area of flow
none of these
340. The frictional resistance of a pope varies approximately with- of the liquid.
pressure
velocity
square of velocity
cube of velocity