Date: 24-02-2023; Friday; Time: 03:30 PM 04:30 PM
Exam Taker: BUET
Full Marks: 100
Time: 1 hour
Non-Technical Part-40x1 = 40
1. Who is Chief Executive Officer (CEO) of Tesla Inc.
Ans: Elon Musk.
2. Which is not Space Agency? a) NASA b) SPACE c) ROSCOMOS d) JAXA.
Ans: SPACE
3. Who invented DC current?
Ans: Thomas Alva Edison.
4. What was the magnitude of the earthquake in Turkey?
Ans: 7.8
5. What is the capital of Ukrain?
Ans: Kyiv.
6. What is the name of the currency of Sri Lanka?
Ans: Rupee.
7. Where will the Summer Olympics 2024 be held?
Ans: France.
8. Who is the president of China?
Ans: Xi Jinping.
9. ChatGPT means -
Ans: a chatbot.
10. GDP means-
Ans: Gross Domestic Products.
11. Who is not a famous Artist? a) Salauddin b) Shahabuddin c) Joynul Abedin d) Kamrul Hasan.
Ans: Salauddin.
12. Which is the largest District? a) Chittagong b) Sylhet c) Rangamati d) Dhaka.
Ans: Rangamati.
13. The largest coalmine situated at -
Ans: Dinajpur.
14. Who is the 1st Prime minister of Bangladesh?
Ans: Tajuddin Ahmed.
15. How may sectors there were during liberation war? Ans: 11
16. ECNEC is under -
Ans: Cabinet Ministry.
17. Dahagram situated at-
Ans: Lalmonirhat.
18. When did "Digital Security Act" passed?
Ans: 2018
19.The Smart Bangladesh means -
Ans: smart citizen, smart society, smart economy, and smart government.
20. Padma Bridge connects -
Ans: Lauhojang, Zazira, Shibchar.
21. BPDP is looking ____ some energetic engineers.
Ans: for.
22. Children give promises to care ______ their parent's.
Ans: of.
23. Correct spelling-
Ans: Extraterrestrial.
24. "To blow out some steam' phrase means -
Ans: to do something that helps one to get rid of strong feelings.
25. In 'Omnipotent' word, omni means -
Ans: all.
26. Opposite of stiff-
Ans: flexible.
27. I dislike him because he is lazy, which clause is this?
Ans: Adverb Clause.
28. The idea of a balanced diet is very difficult to _____ to anyone who knows nothing about food values.
Ans: put across.
29. I would _____ left the job than the other.
Ans: rather.
30. The clerks of office is out and _____ loafer.
Ans: out.
31. সংবিধান শব্দের সন্ধি বিচ্ছেদ কোনটি?
উত্তরঃ সম্ + বিধান।
32. যখন পড়বে না মোর পায়ের চিহ্ন - কোন কারকে কোন বিভক্তি?
উত্তরঃ করণকারকে ষষ্ঠী।
33. মুখরা রমণী বশীকরণ কোন ধরনের রচনা?
উত্তরঃ অনূদিত নাটক।
34. শুদ্ধ বানান কোনটি?
উত্তরঃ জিগীষা।
35. ব্রহ্মপুত্র শব্দের সঠিক যুক্তবর্ণ কোনটি?
উত্তরঃ হ+ম।
36. শশাঙ্ক এর সমার্থক শব্দ কোনটি?
উত্তরঃ চাঁদ।
37. রক্তাক্ত প্রান্তর নাটকের পটভূমি কি ছিল?
উত্তরঃ পানিপথের ৩য় যুদ্ধ।
38. রেস্তোরাঁ কোন ভাষার শব্দ?
উত্তরঃ ফরাসি।
39. 'ভালো ছেলেরা শিক্ষকের আদেশ পালন করে" কোন ধরনের বাক্য?
উত্তরঃ সরল বাক্য।
40. সমাস ভাষাকে কি করে?
উত্তরঃ সংক্ষেপ করে।
Technical Part - 6x10=60
1.
(a) Fill in the gaps with appropriate words.
i. Void ratio of soft clay is 1.5, porosity is _______
ii. The angle of internal friction of a soil is 30°, coefficient of active earth pressure ______
iii. The Ne value for deep foundation is _____
iv. The unconfined compressive strengths of soft clay in undisturbed sample and remoulded state are 50 kN/m2 and 25 kN/m², sensitivity of the soft clay is _____
(b) A dry sand was tested in direct shear apparatus under normal load of 36 kg, sample was failed under load of 58 lb. The sample size was 2 inch in height and 2 inch in width. Calculate the angle of internal friction of the sand.
(c) A moist soil having volume of 0.2 ft3 and weighs 25 lb. The oven dry weight is 20 lb. Calculate bulk unit weight, dry unit weight and water content of the soil.
2. Calculate the fineness modulus (FM), coefficient of uniformity (C(u)) and percent of fine (silt and clay) of the sample.
3. (a) The depth of equivalent constant stress of a singly reinforced rectangular beam, a 3.5" and effective depth is 16.5". The ratio of depth of rectangular stress block β1 is assumed as 0.85.
Comment whether the beam is tension-controlled or compression-controlled. The value of c/dt is 0.60 (compression zone) and 0.375 (tension zone).
(b) Draw the bending moment diagram of the beam having span of 2L. A concentric moment, M is applied at end point.
4. (a) The BOD(5) of a water sample is 125 mg/L in 20°C. The reaction rate constant at 20°C is 0.22/day. Calculate the ultimate BOD.
(b) A horizontal flow grit chamber is used to pretreat wastewater with flow rate 26.5 ft3/s. The chamber is 5.9 feet in deep and width is 15 times of length. What is the width of chamber if average approach velocity is 1.15 ft2/s.
5. (a) A driver moving at a speed of 65 mph on 3% downgrade section of a highway sights an overturning truck 800 feet away on the highway and applied the brake. The coefficient of friction is 0.29, acceleration due to gravity is 32.2 ft2/s. What would be the final distance between the two stopped vehicles?
(b) Calculation of ESAL. (data missing)
6. (a) The water flows from a thermal power plant through a pipe having diameter of 20 cm. Flow velocity is 1.0 m3/s and friction coefficient of the pipe is 0.015. Find the pressure at point 2.
(b) Water flows in a rectangular channel having a width of 3m, longitudinal slope is 0.001 and manning's coefficient is 0.20. If flow depth is Im, calculate the flow rate if it is uniform flow.
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