Course Code: CE 313

University of Asia Pacific Department of Civil Engineering

Mid-Term Examination Spring 2018

Course Title: Structural Engineering II

QUESTION 1 [ 4 MARKS]

Time: I (one) Hour Full Marks:( 4+8+8)=20

a) State fundamental assumptions to analyze statically indeterminate truss and portal mill · using approximate method. [2 marks]

b) Formulate the equation to calculate deflection of truss using virtual work method. [2 marks]

QUESTION 2 [ 8 MARKS] A frame of 7 storied reinforced concrete building is shown in Fig. 1. All beams of the structure are carrying 40 kN/m uniformly distributed (vertical) load . The lateral load of the structure is shown in Fig. 1. Analyze the structure to get bending moment for;

a) ground floor roof beam for vertical load only using approximate method. b) ground floor column for lateral load only using portal frame method.

IOkN ~

~

20kN . ~ -------------+----~··························

6th Fl.

20kN . ~ --+1-----+-----+-------i·········· ·········· ······

5th FI.

20kN-+ 4th FI. -------1------------1 ........................ .

20 kN

20 kN

20 kN

3rd FI. ~ ---.i-----+-----+-------i·························

~

~

2nd FI.

I st Fl. ~ ------+------------t············· ·· ···········

GF Fl. -- .,_

7n777·················· .... --. ,-,1 ,,~I.,.,~ --1 --

f----'8-'-'m......__' _ __,,,.8 ..... m..___: __ 8 ........... m..___:

Fig. 1: Frame of residential building

.... 0 0

i;:

@ s "! M

[4 marks] [4 marks]

d ~

C

4m

0 ......

0 N

Fig.2: Truss of Bill Board

QUESTION 3 [ 8 MARKS) A bill board steel truss structure has joint forces due to wind as shown in Fig. 2. The maximum allowable

deflection of the truss ( at joint d) is 25 mm. Analyze the truss using virtual work method to get required

cross sectional area of members [Given: Modulus of elasticity of steel is 200 GPa]. [8 marks]

I""

University of Asia Pacific Department of Civil Engineering

Mid-Term Examination Spring 2018

Course Code: CE 317 Time: 1 (one) Hour Full Marks:( 4+8+8)=20 Course Title: Design of Concrete Structures II

QUESTION 1 [ 4 MARKS) a. Mention the conditions necessary for using the Direct Design Method of flat slab

analysis. Define the factors a, ~t and explain their effect on the structural analysis of flat slabs. [2 marks]

b. State the procedures and criteria to check punching shear of footings. [2 marks]

QUESTION 2 [ 8 MARKS) Use USD to design Panel A in the beam-supported two-way slab system shown in Fig.1, if Floor Finish= 30 psf, Random wall= 50 psf, Live load= 60 psf. Moment co-efficient data has been provided in exam [Given, fc' = 4 ksi and fy = 60 ksi]. [8 marks]

.--""T"---- Columns of combined footing

20' 20'

16'

16'

t ........................... m ........................... w ..... __ _ iii A Iii • Iii *- ........ ................. :!1 ........................ -!tt-: ..

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Iii iii t I

I------!------! -----i-----i----f _6 m I I I I I

1 : : : : : 6m -----,----,-------r---- --r-----7-----r-------1 I I I I I I I I I I I I I I I I I

-----~----~------~------~-----•-----~----1 I I I I I I I I I I I I I I I _____ J ____ L ______ L _____ L ____ J _____ L ___ _ I I I I I I I I I I I I I I I I I I I I I I I I -----~----~------~------~-----~-----~----1 I I I I I I I I I I I

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6m 3m 6m Fig. I: Slab layout plan Fig.2: Columns at foundation level

QUESTION 3 [ 8 MARKS) Two interior columns (as shown in Fig.2) of 6-storeyed car park are supported by a combined footing. Each column transfers 1235 kN dead load and 405 kN live load to the footing. The bearing capacity of soil is 150 kN/m2. Design the combined footing for flexural reinforcements

only. Assume the effective depth of the footing is 800 mm and column size is 400 mm x 400 mm [Given, fc' = 30 N/mm2 and fy = 410 N/mm2]. [8 marks]

University of Asia Pacific Department of Civil Engineering

Midterm Examination Spring 2018 Program: B.Sc. Engineering (Civil)

Course Title: Environmental Engineering II Time: 1 hour

Course Code: CE 333 Full Marks: 30

There are Four (4) questions. Answer any Three (3).

1. (a) With schematic diagrams show the transmission routes of the following water and waste related diseases: (i) Diarrhea causing infections and enteric fevers; and (ii) Worm Infection with no intermediate host.

(b) Explain the challenges encountered during the implementation of sanitation technologies.

(c) With a neat engineering diagram explain the principles of a VIP latrine.

2. (a) Explain major sewer types often found in a sewer network. (b) Describe different approaches of sewer network maintenance. (c) A 840 mm (33 inches) sewer is laid in a slope of 0.003; what will be the depth of

flow and velocity when the flow is 8.5 m3/ min? Use the graphs available in Page 2.

3. (a) Why equalization tank is necessary for industrial wastewater treatment plants? (b) Discuss the main principles of Fossa Alterna latrines. (c) Calculate the velocity through a rack, when approach velocity is 0.80 mis, flow

open area through clean bar rack is 0.12 m2 and headloss across the rack is 40 mm. Also estimate the headloss, when 50% area of the flow area is blocked off due to coarse solids accumulation.

4. (a) What is the importance of comminuting process in wastewater treatment plants? (b) Why inverted siphons are used in sewer networks? (c) Derive Stokes equation for determining settling velocity of a discrete particle in

water column.

1/2

[3]

[3]

[4]

[3] [3] [4]

[3] [3] [4]

[3] [3] [4]

100 1 70 .

90 150 9 6 2440 0 .0001 80 140 90 2290

130 84 2130 0 .8 70 120 78 1 9 80

110 72 1830 0 .0002 8 0 too

90 66 H l80 0.7

5 0 0.0003 80 60 1152 0

D.0004 70 !54 1370 o .a

40 0 .0005

8 0 48 1228 o.oooe 0 .0007 0.9

30 42 1 0 7 0 o .oooa 5 0 0 .001 t .O

40 38 8 1_5 33 840 t.t

20 30 ?!59. 0 .002

4 t . 2 3 0 I! .5 27 885 :a 1 . 3 °i -g· ir,·

i 24 8115 J f 1.4 .,:

.s i .,: 2 0 ~ '6 21 5 30 1 . 6 "le e ~ l-

;;: 5 >

J 10 1 1 8 460 ·f 9 15 .I-a 6

1 !5 380 .,.,

7 2 . 0 6 10 7 1 2 3015

-g

8 2 15!5 a 10 2 .15 ... 7

6 9 a 2 00

3 !5 1 0

4 6

11

2

2

1 .0

0 .9

0 .8

0 .7

R

0 .6

$ 0.5

,8 0 .4 I!

'&. c! 0 .3

0 .2

0.1 •

0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 0 .8 0 .9 1 .0 1.1 1 .2

Radius o f Hyd raulic E lements. A ~ A,, . W P,JWP,,. R,JR,,. V,.NF, a,..,c.

Graphs for Question 2(c).

2/2

University of Asia pacific Department of Civil Engineering

Midterm Examination Spring 2018

Program: B.Sc Engineering (Civil)

Course Title: Transportation Engineering 1 Full Marks: 20

There are Three questions. Answer two of them

Course Code: CE 351 Time: lhour

1. Spot speed data was collected during conducting speed studies at certain section of l 0 an urban primary road. Determine:

a) Safe speed c) Average speed and b) Design speed d) Median speed

Speed Range (mph) No. of Vehicle 20 - 24 0 25 - 29 52 30 - 34 61 35 - 39 150 40-44 95 45 - 49 55 50- 54 40 55 - 59 23 60 - 64 15 65 - 69 6 70- 74 2 75 - 79 1

2. a) Compare on-street and off-street method of parking. b) Arrange the data collection techniqu~s for traffic volume study. c) Explain VMS.

.3. a) Design a two-phase signal of a cross-junction·fo.r the data given below:

Amber Red-amber

Inter green Lost time

3 sec 2 sec

N-S 8 2

North Flow, veh/hr 620 Saturation flow veh/hr 1910

Drawthe phase diagram._

E-W 6 3

Approaches South East 790 875 2380 2700

West 710 2130

b) Summarize the crossing behaviors of pedestrians in Dhaka city.

6 3

8

2

Course: CE 363 Full Marks: 60

University of Asia Pacific Department of Civil Engineering

Mid Term Examination Spring 2018

Course Title: Engineering Hydrology Time: 1 hour

Assume any reasonable value, if not given

Answer All the Questions 1. a. Explain 4

i) Dalton's law ii) Water budget method & estimate evaporation rate.

b. Why pan coefficient is introduced to calculate evaporation using evaporation pan? 3 c. Explain the variation of actual evapotranspiration (AET) with respect to available moisture

for clay and sandy soil. 3

2. There were seven rain gauge stations namely A, B, C, D, E, F, G where station D was inoperative for a month. At that month rainfall recorded in the other six stations were 3.9, 6.2, 9.9, 5.5, 9.0, 8.3 cm respectively. If the average annual rainfalls for the stations are 125, 145.6, 165.3, 118.9, 129.9, 156.1 and ll0cm. EstimatethemissingrainfalldataatstationD. 10

3. Using Horton's equation fct~ fc + (fo - fc) e•kt, find the infiltration rate at 6th hour given an initial infiltration capacity fo of 3.9 in./hr and a time constant k of 0.29 hr-I, ultimate infiltration capacity is 0.65 in./hr. 7

4. Broadly discuss the factors on which rate of evaporation is influenced.

5. How to find air pressure at any height in a saturated air column.

5

3

6. A reservoir with a surface area of 220 hectares had the following average values of parameters during a month: water temperature = 25°C, Relative humidity = 37%, wind velocity at 1.0 m above ground= 14 km/h. Using Meyer's formula, Estimate the average daily evaporation from the lake and volume of water evaporated from the lake during the hole month. 10

7. For a drainage basin of 50 km diameter, a catchment with five rain gauge stations (see page 2) are recorded as follows: 15 Raingauge stations A B C D E

Annual rainfall (cm) 80 55 92 67 45 Estimate the average depth of precipitation over the catchment, using Thiessen Polygon Method.

1

University of Asia Pacific Department of Civil Engineering

Mid-Semester Examination Spring-2018 Program: B. Sc Engineering (3rd Year/2nd Semester)

Course Title: Principles of Management Time: 1.00 Hours.

Course No. IMG 301 Credit: 2.00 Full Marks: 60

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

1. (a) "Developing all workers to fullest extent possible for their own and their company's highest prosperity." Who included the stated principle in scientific approach to management? 1.5

(b) "Esprit de corps. This is the principle that "in union there is strength," as well as an extension of the principle of unity of command, emphasizing the need for teamwork and the importance of communication in obtaining it." Who identified the stated management principle? 1.5

(b) Draw a figure with three different kinds of skills showing the use at different levels of administration. 6

(c) What gave Taylor ample opportunity to know the problems and attitudes of workers and to see the great possibilities for i_mproving the quality of management? 3

( d) What is Hawthorne effect? 8

2. (a) Draw a figure of an organization and its external environment. 3 (b) What are the first-wave, second-wave, and third-wave economies? 3 ( c) What rethinking does the knowledge age economy require regarding organizational

structure? 3 (d) What is ecology? What may be the causes of land, water, and air pollution? What are

manager's responsibilities? 8 (e) Write an example of the social responsiveness of business. 3

3. (a) Write about different types of multinational corporations. 12 (b) Write four advantages of multinational corporations. 8

4. Describe different types of plans in the perspective of an organization that you know most. 20

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