hpsc.gov.in HCS Main Exam Civil Engineering Question Paper : Haryana Public Service Commission

Name of the Organization : Haryana Public Service Commission
Name of the Exam : HCS (Ex.Br.) Main Exam
Subject : Civil Engineering
Document Type : Previous Question Paper
Year : 2014

Website : http://hpsc.gov.in/en-us/
Download Sample/Model Question Paper : https://www.pdfquestion.in/uploads/11108-Civil.pdf

HCS Main Exam Civil Engineering Question Paper :

Civil Engineering :
Code : 05
Time:3 Hours
M.M. : 150

Related : HPSC HCS Main Exam Chemistry Question Paper : www.pdfquestion.in/11104.html

Note:
(i) Attempt five questions. All questions carry equal marks. Question number I is compulsory. Answer any two questions from part I and two questions from part II. The parts of the same questions must be answered together and must not be interposed between answers to other questions.

(ii) In case of any discrepancy in the English and Hindi versions, English version will be taken as final.

1. Attempt any four of the following : (ax7.5 = 30 Marks)
a. The shear force diagram in a statically determinate beam is shown below. Determine the loading diagram of beam.

b. Derive the expression for central deflection in a simply supported beam of length L, modulus of elasticity E, moment of inertia I carrying a uniformly distributed load of w per unit length using unit load method.

c. Plot the influence line diagrams for the beam shown between for reaction at B’shear at C and moment at C’
d. Pipes of 50 cm diameter 1800 m length, 40 cm diameter 1200 m length and 30 cm diameter 600 m length are connected in series’ lf these pipes are to be replaced by an equivalent pipe of 40cm diameter, what would be its length?

e. The following data are the rates of rainfall for successive 20 minutes period of a 140 minutes storm: 2.5,2.5,10.0, 7’5, !’25, !’25’ 5’0 cm/hr’ Taking the value of syntax as 3.2 cm/hr find out the net runoff in cm the total rainfall and the value of w index

f. What is Biochemical Oxygen Demand BOD? Deduce an expression for the first stage BOD

Part-l :
2. a. Analyse the frame shown in figure below using slope deflection method.
b. Calculate moment of resistance of a reinforced concrete beam having section 200 mm x 350  6 steel bars of 20 mm diameter bars as tensile enforcement and z steel bias of lz mm diameter as compression reinforcement. Take concrete of beam as M2e, steet as Fe 415, ctear cover as 25mm for both tensile/ compression reinforcem

3 (a). Explain displacement thickness, momentum thickness and energy thickness used for boundary layer separation.
b. Explain the classification of hydraulic jumps based on Froude number

4. a. Explain the procedure of triaxial test for soil. Also discuss the uses and types of triaxial tests.
b. Explain the prestressing methods used in prestressed concreate beam. Also discuss the losses of each method.

Part- II :
5. (a). What should be the cross section of most efficient trapezoidal shape for a concrete lined canal to carry a discharge of 250 m3/s? The channel slope is 0.0004 and Manningls coefficient’N’ is 0.014. Use the side slope as 1:1.

(b). How are bricks classified as per l.S. code? What are the properties associated with this classification

6. (a). Compute expected time of completion of each activity, earliest expected time for each event and latest allowable occurrence time for each event shown in network diagram given below
(b). Explain how you will prepare the sand to be used in the rapid sand filters, from the available stock sand in case of a large water supply scheme

Electrical Engineering :
l. A polynomial f(x) = a4x4=a3x3+a2x2+ax-a0 with all coefficients positive has
(A) no real roots
(B) no negative real root
(C) odd number of real roots
(D) at least one positive and onc negative real root

2. The steady-state error of a feedback control system with an acceleration input becomes finite in a
(Af type 0 system.
(B) type I system.
(C) type 2 system.
(D) type 3 system.

3. The impulse response of a LTI system is a unit step function, then the correspond-rding transfer function is
(A) l/s
(B) l/s2
(c) I
(D) s

3. If the transfer function of a first-order system is G(s)= 10/1+1.25 then the time constant of the system is
(A) l0
(B) 1/10
(c) 2
(D) 1/2

4. A good control system has all the following features except
(A) good stability
(B) slow response
(C) good accuracy
(D) sufficient power handling capacity

5. Which of the following is the best method for determining the stability and transient response?
(A) Root locus
(B) Bode Plot
(C) Nyquist plot
(D) None of the above

6. Addition of zeros in transfer function causes which of the following ?
(A) Lead-compensation
(B) Lag-compensation
(C) Lead-lag compensation
(D) None of the above

7. The control system design specification for a chemical process is described as short settling time, improved damping and zero steady state error. What control do we choose?
(A) P
(B) PI
(c) ID
(D) PID

8. When a system’s frequency response crosses the -1 point
(A) the Gain Margin is I dB
(B) the Gain Margin is co
(C) the Phase Margin is zero
(D) the Phase Margin is 180o

9. Maxwell’s equations involve_.
(A) Charge density
(B) Current density
(C) Magnetic intensity
(D) All of these

10. Which of the following is a lo’*’-gain antenna?
(A) Dish antenna on a space craft
(B) Wi-Fi antenna
(C) Both (A) and (B)
(D) None of the above