R10 SET Explain about the common types of soils, their origin and occurrence in India? Write also on the stabilization of Soils?
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1 Code No: R22015 II B. Tech II Semester Supplementary Examinations, Dec/Jan ENGINEERING GEOLOGY (Civil Engineering) ~~~~~~~~~~~~~~~~~~~~~~~~~ 1. a) Explain in detail about the importance of Geology from Civil Engineering point of view? b) Explain about the role of study of Physical Properties of Minerals in the identification Minerals? 2. a) Write the definition of Rock? Explain about the Geological Classification of Rocks? b) Describe about discordant bodies with neat sketches? 3. a) Explain about the precautions to be taken for building construction in seismic areas? b) Describe about different types of Faults with neat sketches? 4. a) Explain about Seismic Refraction method of Exploration with a neat sketch? b) Explain about Mohr s Circle in Rock Mechanics with a neat sketch? 5. Explain about the common types of soils, their origin and occurrence in India? Write also on the stabilization of Soils? 6. a) Explain about the importance of embankment on dams? b) Describe about seismograph and its applications with a neat sketch? 7. a) Explain about the Geological factors influencing the location of the dam site? b) Explain about the Landslides and its occurrence and preventive measures? 8. a) Explain about Tunnel Boring Machine with a neat sketch? Write its applications? b) Explain about the role of Geological Considerations in Tunneling? 1 of 1
2 Code No: R22014 II B. Tech II Semester Supplementary Examinations, Dec HYDRAULICS AND HYDRAULIC MACHINERY (Civil Engineering) ~~~~~~~~~~~~~~~~~~~~~~~~~ 1. a) Explain the principles of most economic section of a channel. (6M) b) A most economical rectangular channel is discharging water at the rate of 20 cumecs (9M) with a velocity of 3.20 m/sec. Design the channel taking c =75 2. a) What is a hydraulic jump? Explain various types of hydraulic jumps with neat sketches. b) Find the depth of the flow at the downstream of a hydraulic jump in a rectangular channel section with the following details (i) width of the channel : 8m (ii) depth of flow :1.2m (iii)discharge : 20 cumecs. 3. a) State Buckinngham s π- theorem. Why is this theorem considered superior over (6M) Rayleigh s method of dimensional analysis. b) Define the terms model, prototype, model analysis and hydraulic similitude. (5M) c) Explain different types of non dimensional members (4M) 4. a) Define the terms (i)impact of jets. (ii) jet propulsion. (6M) b) A 6.5 cm diameter jet having a velocity of 22 m/sec strikes a plate at an angle of (9M) Determine the normal pressure on the plate. 5. a) Differentiate between gross head and net head. (4M) b) What is the function of a surge tank? Describe various types of surge tanks. c) Compare between turbine and pump. (4M) 6. a) Explain cavitation in hydraulic turbines. (5M) b) What is Thomas cavitation number (4M) c) Narrate protective measures against cavitation. (6M) 7. a) Explain minimum starting speed of a centrifugal pump. (5M) b) The diameter of an impeller of a centrifugal pump at inlet and outlet are 0.2m and (10M) 0.4m respectively. Find out the minimum starting speed of the pump if it works against a head of 26.00m 8. a) Discuss how Hydroelectric power plants are classified. b) Find the discharge of a river at a point where Hydroelectric power station is located whose efficiency is 85%, head available is 25m and power generated is 10,000kW. 1 of 1
3 Code No: R22013 II B. Tech II Semester Supplementary Examinations, Dec MANAGERIAL ECONOMICS AND FINANCIAL ANALYSIS (Com. to CE, MM) ~~~~~~~~~~~~~~~~~~~~~~~~ 1. State the law of demand and what are the various factors that determine the demand for an engineering education course? 2. What is elasticity of demand? Explain how it is useful in business decision making? 3. Explain the concept of Break-Even Analysis with suitable diagram also point out its importance and assumptions. 4. a) What are the types of imperfect competition? Explain in brief. b) Explain any four pricing methods 5. What are the reasons for introducing company form of organizations and list its pros and cons. 6. Give a brief account on the important records of Accounting under Double entry system and discuss briefly the scope of each. 7. How ratios are classified for the purpose of financial analysis? With assumed data illustrate any two types of ratios under each category. 8. A company has an investment opportunity costing Rs.1,50,000 with the following expected net cash flow. Year Cash Flow After Tax 1 16, , , , ,000 Using 10% as the rate of discount determine the following: i) Pay -back period method ii)npv method 1 of 1
4 Code No: R22011 II B. Tech II Semester Supplementary Examinations, Dec PROBABILITY AND STATISTICS (Com. to CE, CHEM, PE) Time: 3 hours Max. Marks: 80 ~~~~~~~~~~~~~~~~~~~~~~~~ 1. a) If A and B are mutually exclusive events P(A)=4P(B) and A B = S, Find c c i) p( A B) ii) p( A B ) iii) ( c c p A B ) b) Three machines I, II, III produce 40%, 30%, 30% of the total number of items of a factory. The percentages of defective items of these machines are 4%, 2% 3%. If an item is selected at random, Find the probability that the item is defective. 2. a) The probability density function of a variate X is X P(X) k 3k 5k 7k 9k 11k 13k (i) Find K. (ii) Find P(X<4), P(X 5), p(3<x 6) (iii) What will be the minimum value of K so that p(x 2)>0.3? b) Probability density function of a random variable X is 1 / 2sin x,0 x π f ( x) =. Find the mean and variance of the distribution. 0, elsewhere 3. a) If the probability of success is 1/20, how many trials are necessary in order that the probability of at least one success is just greater than ½? b) Derive the mean, mode and median of normal distribution. 4. a) The average cost of a studio condominium in the cedar lakes development is Rs 62,000 and the S.D is Rs What is the probability that condominium in this development will cost at least R s. 65,000? b) A random sample of size 25 from a normal population has the mean = 47.5 and the standard deviation is equal to 8.4. Does this information tend to support or refute the claim that the mean of population is µ=42.5? 1 of 2
5 Code No: R a) Write working procedure for testing of hypothesis concerning difference of means for small samples. b) A sample of 900 members has a mean 3.4 cms and standard deviation 2.61cms. Is this sample has been taken from a large population of mean 3.25 cms and S.D 2.61 cms, if the population is normal and its mean is unknown, find the 95% and 98% confidence limits of the true mean? 6. a) Test whether the intelligence of sons depends on the intelligence father s from the following data, using χ 2 test at 0.05 level Intelligence fathers with intelligence sons=200 Intelligence fathers with intelligence sons=50 Dull fathers with intelligence sons=110 Dull father with dull sons =600 b) A random Sample of 10 bages of pesticides are taken whose weight are 50, 49, 52,44,45,48,46,45,49,45(in kgs). Test whether the average packing can be taken to be 50kgs. 7. a) Determine the constants a and b by the method of least squares such that y bx = ae fits the following data X y b) What is the use of control charts? Draw a typical control chart. 8. a) Explain about Queuing Characteristics. b) Consider a single server queuing system with poisson input and exponential service time. Suppose the mean arrival rate is 3 calling units per hour with the expected service time as 0.25 hours and the maximum permissible number of calling units in the system is two obtained the steady state probability distribution of the number of calling units in the system is and then calculate the expected number in the system. 2 of 2
6 Code No: R22012 II B. Tech II Semester Supplementary Examinations, Dec STRENGTH OF MATERIALS (Civil Engineering) ~~~~~~~~~~~~~~~~~~~~~~~~~ 1. A horizontal beam AB is freely supported at A and B, 8 m span, and carries a UDL of 15 kn/m (including its own weight). A clockwise moment of 160 kn-m is applied to the beam at a point C, 3 m from the left hand support A. Calculate the slope of the beam at C, if EI=40 MN-m a) Deduce the longitudinal stress equation for a thin spherical shell subjected to an internal pressure of intensity p, with a thickness t and diameter d. b) A cylindrical shell is 3 m long, 1 meter internal diameter and 15 mm metal thickness. Calculate the maximum intensity of shear stress induced and also the changes in the dimensions of the shell, if it is subjected to an internal pressure of 1.5 N/mm 2. Take E = 2.05x10 5 N/mm 2, 1/m = An element is subjected to tensile stresses of 60 N/mm 2 and 20 N/mm 2 acting on two perpendicular planes and is also accompanied by shear stress of 20 N/mm 2 on these planes. Draw the Mohr s circle of stresses and determine the magnitudes and directions of principal stresses and also the greatest shear stress. 4. A leaf spring carries a central load of 3000 N. The leaf spring has to be made of 10 steel plates 5 cm wide and 6 mm thick. If the bending stress is limited to 150 N/mm 2 determine: (i) length of the spring and (ii) deflection at the centre of the spring. Take E = 2x10 5 N/mm 2. 1 of 2
7 Code No: R a) Derive Euler s buckling load formula of a long column pinned at both ends. b) A solid round bar 3 m long and 5 cm in diameter is used as a strut with one end is fixed and other is hinged. Determine the crippling load. Take E = 2x10 5 N/mm A square chimney, 30 m high, has a flue opening of size 1.5 m x 1.5 m. Find the minimum width required at the base for no tension if the masonry weights 20 kn/m 3 and the wind pressure is 1.5 kn/m 2. The permissible stress in the masonry is 1kN/m Determine the principal moments of Inertia for an unequal angle section 225x175x15 mm. 8. A truss is loaded as shown in figure. Find the members forces, using method of sections. 2 of 2
8 Code No: R22016 II B. Tech II Semester Supplementary Examinations, Dec/Jan STRUCTURAL ANALYSIS I (Civil Engineering) ~~~~~~~~~~~~~~~~~~~~~~~~~ 1. A propped cantilever ABC of span 5m is fixed at A and propped at the free end B.C.is located at a distance of 3 m from the fixed end A. It carries a uniformly distributed load of 14kN/m intensity in the portion AB of the span. Determine the prop reaction at B and also draw the shear force and bending moment diagrams indicating salient values. 2. A fixed beam of span 14m carries a central clock wise couple of 20KN-m at the mid span. Calculate the fixed end moments for the beam. Also, draw the shear force and bending moment diagrams for the beam. 3. A two span continuous beam ABC rests on simple supports at A, B and C. All the three supports are at same level. The span AB=5m and span BC=4m. The span AB carries a uniformly distributed load of 12 kn/m and span BC carries a central point load of 22 kn. EI is constant for the whole beam. Find the moments and reactions at all the supports and draw the bending moment diagram using Clapeyorn's theorem of three moments. 4. A two span continuous beam ABC is fixed at A and simply supported at C. It is continuous over support B. The span AB=4m and span BC=7m. The span AB carries a UDL of 14 KN/m and span BC carries a central point load of 12KN. EI is constant for the whole beam. Find the support moment at B and draw the shear force and bending moment diagrams using slope-deflection method. 5. A simple supported beam of variable moment of inertia supports a uniformly distributed load of w kn/m throughout its span length l as shown in figure. Calculate the central deflection, using Strain Energy method. 6. A single rolling load of 27 kn rolls over a simply supported girder of 20 metre span. Draw the diagrams for the maximum shear force and maximum bending moment in the girder. 1 of 2
9 Code No: R A load of 80kN crosses a simply supported bridge of 21m span. Find the values and draw influence lines for positive shear force, negative shear force and the bending moment at a section 12m from the left end. Using the influence lines, find the maximum shear forces and bending moment at section 12 m from the left end support. 8. Determine the forces in members BD, DF, AC & CE of the redundant pin jointed truss shown in the figure below having internal redundancy of two degrees. Assume cross-sectional area of each member as 1000mm 2. 2 of 2
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