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University ofAsia Pacific Department of Civil Engineering Mid-Semester Examination, Spring - 2019 Program: B.Sc. in Civil Engineering Year pt Semester: pt

Course Code: HSS l O1 Course Title: English Language I (Oral and Written English) Credit: 3.00 Time: 1.00 Hour Full Marks: 20

Instructions: *Marks are indicated in the right margin. *Answer all the questions

1. Complete the following passage by inserting the missing a, an, the or x (for no article) where necessary: 4xl = 4 • As much as (a) __ contributions of male civil engineers are appreciated, female civil engineers have made great contributions too. Some of the famous female civil (b) __ engineers have helped develop the society around us and abolished gender prejudice. Let's start with Nora Stanton Blatch Barney who was an English-born American architect and civil engineer, she was the granddaughter of American suffragist Elizabeth Cady Stanton. Nora was the first female member of the American Society of Civil Engineers who was posthumously advanced to ASCE Fellow status in 2015. Then there was Sarah Guppy who was (c) _ _ English inventor who helped design Britain's infrastructure; she contributed to the design of the Clifton Suspension Bridge in Bristol. You should also know about Elsie Eaves who became the first female associate member of the American Society of Civil Engineers. She was a draftsman for (d) _ Bureau of Public Roads in Denver, Colorado. We should also mention another British Civil Engineer, Mary Isolen Fergusson who made contribution to the well­ known River Leven Purification Scheme in 1952.

2. Choose the correct homophone from the options below: 3xl = 3 a) This is Iftekhar' s favorite ___ (pare, pair, pear) of jeans. b) Sadia and Firoz got (bored, board) during the movie. c) She walked down the ___ (aisle, isle) between the rows of desks.

3. Make meaningful sentences with the pair of homonyms below. 2xl = 2 a) address, address

b) watch, watch ,, 4. Fill in the blanks using appropriate preposition from the box below. 4xl = 4

Do you love the look (a) __ in iconic city skylines? Well, then you should thank a Bangladeshi architect and pioneer for that. Once, the idea of building taller structures seemed dangerous and inefficient. Without one man's innovation, incredible structures like the tall buildings and other notable skyscrapers might not exist as we know them today. Engineer and Architect Fazlur Rahman Khan, also considered the "father of tubular designs" for high­ rises is to thank (b) __ the new generation of skyscrapers creating stunning focal points in hundreds of city skylines. Khan was also a pioneer (c) __ computer-aided design (CAD). He was the designer of the Sears To wer, since renamed , the tallest building in the world from 1973 until 1998, and the l 00-story . It was Fazlur Rahman Khan who epitomized both structural engineering achievement and creative collaborative effort (d) __ architect and engineer.

5. Fill in the following gaps using right form of verbs according to the tense. 3xl = 3

a) Sarni and Ratul _ _ _ (see) a great film yesterday.

b) Her sister never ___ (work) in the evening except on Fridays.

c) He had an accident when he ---(ride) his bike.

6. Suppose, you are an Executive Civil Engineer in MAX Infrastructure Ltd. (RAOWA , 4 Complex, level-I I, VIP Road Mohakhali, - 1206). Two months ago, you were assigned to supervise the progress of a project from Neways International Company Limited (House#46, Road#S, Nikunja# 1, Khilkhet, Dhaka - l 229.). As an Executive Engineer, it is your responsibility to hand over the entire project to the Head of the Management team of Neways International Company Limited in the allotted time but unfortunately you could not do so and now the deadline is over.

Therefore, write an apology letter to the Head of the Management team of Neways International Company Limited regarding this matter along with proper explanation. University of Asia Pacific Department of Basic Sciences and Humanities Mid-Semester Examination Spring- 2019 Program: B. Sc Engineering (CE)

Course Title: Physics Course Code: PHY-101 Credit: 3.00 Time: 1.00 Hour Full Mark: 60

N.B- There are Four Questions. Answer any Three. All questions are of equal value. Figures in the right margin indicate marks.

1. (a) Prove that work done per unit volume, w = .!_ x stress x strain for volume strain (10) 2 energy.

(b) Calculate the work done in stretching a uniform metal wire of area of cross section (10) 2 3 11 2 10-

YI 2. What is called beam? Prove that bending moment of a beam is equal to _ g , where the (20) R terms have their usual meanings.

3. Define flexural rigidity? Find out the Young's modulus "Y" of a metallic wire by Searle's [201 8 dynamic method and prove that Y ,rl~ , where the terms have their usual meanings. = 4 r T.

4. (a) Write down four postulates of the kinetic theory of gases. (10)

(b) At what Celsius temperature will oxygen molecules have the same root mean square (10) velocity as that of hydrogen molecules at -1 oo0c? University of Asia Pacific Department of Basic Sciences & Humanities Mid Examination, Spring-2019 Program: B.Sc. in Civil Engineering

Course Title: Mathematics-I Course Code: MTH 101 Time: 1.00 Hour. Full Marks: 60

There are Four questions. Answer any Three. All questions are of equal values, indicated in the right margin.

1. Define continuity of a function. Discuss continuity and differentiability ofj{x) at x = 0, 20 ( 3 + 2x, - 3 I 2 < x ~ 0 where f(x) = i . L3 - 2x, 0 < x < 3 I 2

2. (a) State Leibnitz's Theorem. Ify = tan -t x , then show that 10

(1-tx 2 )Yn+2 +2 ( n+l ) XYn+l -t(n 2 +n)yn =0.

(b) Discuss the applicability of the Mean Value Theorem for the function 10 f (x) = (x - l)(x - 2)(x -3) over (0, 6).

(a) 10 3. If y=ex sinx, thenprovethaty4 +4y=0.

. 2 1 2 (b) If y = x + - , then prove thatx y 2 + xy1 -4y = 0. 10 x 2

4. State Taylor's theorem in power of (x-a) with Cauchy's form of remainder. Expand 20 sinx in power of (x - rr/2). University of Asia Pacific Department of Civil Engineering Mid Semester Examination Spring 2019 Program: B.Sc. Engineering (Civil)

Course Title: Engineering Mechanics I Course Code: CE 101 Time: I hour Credit Hours: 3.0 Full Marks: 40 (= 4 x 10)

ANSWER ALL THE QUESTIONS

I. Two spheres A and B are at rest against smooth surfaces shown in Fig.I. Sphere A weights 200 lb. and sphere B weights 400 lb . Calculate the normal reactions at C, D and E. 10

Sphere B

4' 1

2. Fig.2 shows a system of forces acting on a structure (shown by bold lines). Calculate the magnitude, direction and location of resultant of the forces. 4+4+2

3. In the truss loaded as shown in Fig.3, (i) Identify zero force member(s), (ii) Calculate reactions at supports D and I and (iii) Calculate forces in member CD, DH and DF. 2+4+4

E H T 2m + 2m J_ A

Sm Sm 3m 3m ----j

4. In the beam loaded as shown in Fig.4, calculate the (i) Reactions at supports B and Hand (ii) Shear Force (JI) and Bending Moment (BM) at point C. 4+6

lb/ft 2

1----9' --t-- 3' + 3' -t-- 5' -t- 3' -+- 3' 1 University of Asia Pacific Department of Civil Engineering Mid Semester Examination Spring 2019 Program: B.Sc. Engineering (Civil)

Course No: CE 107 Course Title: Introduction to Civil & Env. Engg. Full Marks: 50 Time: 1 hour PART I Answer all the questions.

I. Explain the following terms: i) Environmental Engineering ii) Environmental Ethics iii) Energy iv) Resource [3 *4=12]

2. Differentiate between i) Green Engineering and Traditional Engineering Processes ii) Biotic component and Abiotic component of environment. [4+4]

3. With a neat sketch clearly mention the different layers of atmosphere. [5]

PART II Answer all the questions.

4. (a) Using a schematic diagram, mention some important features of scientists engineers, [7] society and technology. (b) Define civil engineering according to ASCE. [3] ( c) Mention three major roles of civil engineers in infrastructure development. [3]

5. (a) A brick does not have standard dimensions. The longest dimension is missing. Other [6] two dimensions are 7.4 cm and 4.75 in. The unit weight of the brick material (Ybm) is 3 19 kN/m . Calculate the missing dimension of the brick, in in, if its weight is about 4.5 kg. (b) From the following figure (depicting a dam structure) calculate: [4+2] (i) Stress, in psi, at level A. (ii) Pressure,in kN/m2, at point B.

12m j-<.. ··············l>j Level A ···· ).. ·····

EWL (Existing Water Level) 20m j -<·· ··· · ·· ············· 20 m x 12 m x30 m Main Concrete Dam 3 y w = 62.5 lb/ft 3 9 m (Y cone = 140 lb/ft )

EGL (Existing Ground Level)