Civil Engineering(Construction Technology & Management)(Ph.D.)

Civil Engineering(Construction Technology & Management)(Ph.D.)   (1077)

1.      If the whole circle bearing of a line is 270 degrees, its reduced bearing will be

A)                N 90⁰ W                      B) S 90⁰ W                  C) W 90⁰                            D) 90⁰ W

2.      The Bending moment Diagram for a simply supported beam carrying a uniformly distributed load of w per unit length will be

A)                A horizontal Line                                B) A vertical Line

C) An inclined Plane                          D) A parabolic Curve

3.      Transverse Fillet Welds are designed for

A)                Tensile Strength                                              B) Compressive Strength

C) Shear Strength                                           D) Bending strength

4.      A Column that fails due to direct stress is called

A)                Short column                                       B) Long Column          

C) Weak Column                                            D) Medium Column

5.      The Efficiency of Sedimentation Tank for a given discharge, can be increased by

A)                Increasing the depth of the tank                      

B)                Decreasing the depth of the tank

C)                Increasing the Surface Area of the Tank

D)                Decreasing the surface area of the Tank

6.      The most common Coagulant is

A)                Magnesium Sulphate                           B) Alum

C) Chlorine                                                     D) Bleaching Powder

7.      Weigh Batching is done by

A)                Spring Dial Scale                                B) Platform weighing balance

C) Portable Weigh Batchers              D) All the Above

8.      Dummy activities are used to

A)                Determine the critical Path                 B) Decrease the Project completion Time

C) Maintain the required network                  D) None of these

9.      Gantry girders are designed to resist

A)                Lateral Load                                       B) Longitudinal Loads C) Lateral & Longitudinal Loads                         D) Lateral, Longitudinal and vertical Loads

10.  The ends of a chain are provided with

A)                Brass               B) Steel                       C) Iron            D) None of these

11.  The deflection due to couple M at the free end of a cantilever of length L is

A) ML/EI                    B) 2ML/EI                  C) ML2/2EI 12. Hydraulic Pressure on a dam depends upon its		D) M2L/2EI
A) Length             B) Depth                     C) Shape 13. Units of Kinemetic Viscousity are		D) Both A & B
A) m2 /s                 B) NS/m2                           C) NS/m3		D) Kg/m-sec

14.  Flow in pipes is turbulent if Reynold’s number is

A)                Less than2100                                                 B) Greater than3000

C) Between 2100&3000                                 D) None of these

15.  A floating body attains stable equilibrium if the meta-centre is

A)                At the Centroid                                               B) Above the Centroid

C) Below The Centroid                                  D) Anywhere

16.  Offset Rods are used to measure

A)                Short Offsets B) Ranging                  C) Contouring             D) None of these

17.  D.O. Concentration falls down to zero anywhere in a natural drain, it indicates

A)                Zone of Degradation                         B) Zone of active decomposition

C) Zone of Recovery                                      D) Zone of clear Water

18.  Average Temperature of Sewage in India is

A)                10⁰c                 B) 20⁰c                        C) 15⁰c                        D) 25⁰c

19.  Standard BOD of Water is taken for

A)                1 Day             B) 2 Days                    C) 3 Days                    D) 5 Days

20.  The Detention time of a settling tank may be defined as the time required for

A)                A Particle to travel along its length

B)                A particle to travel from top surface to bottom sludge Zone

C)                The Flow of Sewage to fill the tank.

D)                None of these

21.  Cohesionless soil is

A)                Sand                B) Silt                          C) Clay                        D) Clay &Silt

22.  The specific gravity and Void Ratio of a soil sample are ‘G’ and ‘e’ respectively. The critical Hydraulic gradient ‘I’ is given by

A)                G-1/1+e                       B) G+1/1+e                 C) G+1/G-e                 D) 1-G/1+e

23.  The coefficient of active earth Pressure K_a is 1/3, then the coefficient of passive earth

Pressure K_p shall be

A)                1/3                   B) 2/3                          C) 3                             D)  3/2

24.  In Concrete Roads, Camber provided is

A)                1in 20 to1in 24                                                B) 1in 36 to 1in 48

C) 1in 60 to 1in 72                                          D) 1in 48 to1 in 60

25.  The minimum grade of concrete for construction under sea water is

A)                M20                 B) M30                        C) M35                        D) M15

26.  For the construction of RCC slabs, beams, columns and walls, the grade of concrete mix used is

A)                1:3:6                B) 1:1.5:3                    C) 1:2:4                       D) 1:1:2

(2)

27.  Expansion joints are provided if length of concrete structure exceeds

A)                50m                 B) 45m                        C) 35m                        D) 40m

28.  The shuttering of a hall measuring 4mx5m can be removed after

A)                5days               B)7days                       C) 14days                    D) 21 days.

29.  Gypsum to the cement is added for

A)                Colour                                                             B) Strength                   C) Controlling Setting time                             D) None of these

30.  The Max. Shear Stress q_max in a rectangular beam section is

A)                1.25qmax                             B) 1.5qmax                         C) 2qmax                             D) 2.5qmax

31.  If the diameter of a reinforcing bar is’d’, the anchorage value of hook shall be

A)                4d                    B) 8d              C) 12d                         D) 16d

32.  A couple produces

A)                Translatory motion                               

B)                Rotational Motion

C)                Combined Translatory and Rotational Motion

D)                None of these

33.  A flat slab is supported

A)                On Beams                                            

B)                On columns

C)                On beams and Columns

D)                On columns monolithically built with slab

34.  As the percentage of steel in beams increase

A)                The depth of NA decreases                B) The depth of NA increases

C) Lever Arm decreases                                 D) Lever Arm increases

35.  The Shear reinforcement in RCC is provided to resist

A)                Vertical Stress                                                 B) Horizontal Shear

C) Diagonal Compression                               D) Diagonal Tension

36.  Poisson’s Ratio for steel within elastic limit ranges from

A)                0.15-0.20         B) 0.25-0.33    C) 0.33-0.35    D) 0.45-0.50

37.  For simply supported beam, maximum permissible deflection is

A)                1/325 of the span                                B) 1/425 of the span

C) 1/150 of the span                          D) 1/36 of the span

38.  The field capacity of the soils depends upon

A)                Capillary tension in soils                     B) Porosity of soils C) Both A & B                                         D) None

39.  The difference in level between the top of a bank and FSL of water in canal is called

A)                Berm                                                   B) Free Board

C) Height of bank                                           D) None

40.  A Viaduct is a bridge constructed over a 

A) Valley                    B) River                      C) Hillock                   D) None

41.  The last reading in Levelling operation is always a

A) Backsight                                      B) Foresight C) Intermediate Sight                             D) All the above

42.  Fat Lime Sets in the Presence of

A) Carbon Dioxide                                         B) Oxygen

C) Sulphur Dioxide                                         D) All of these 

43.  Cement possesses the unique property of

A) Settling                                                      B) Decrease in Strength with age C) Increase in Strength with age                    D) None of these

44.  The limiting Gradient recommended in the plain area is

A) 1 in10                     B) 1 in 15                    C) 1 in 100                  D) 1 in 20

45.  Density required in Embankment up to 3m height is

A) 1.55gm/cc        B) 1.67gm/cc  46. Index Map Shows the	C) 1.44gm/cc  D) 1.77gm/cc
A) Exact Topography of the area	B) General Topography of the area
C) Contour map of the area                        47. Abrasion test is conducted to find the	D) None of these
A) Hardness of aggregates	B) Impact value
C) Toughness	D) Permeability

48. Sheep Footed rollers are suitable for the compaction of

A) Sandy Soils            B) Clayey Soils           C) Gravels                   D) None of these

49. The position occupied by the centre line of a road is called

A) Super elevation                                          B) Road Alignment C) Camber                                                             D) Shoulder

50. The traffic signs indicating Prohibitions are known as

A) Warning Signs                                           B) Prohibitory Signs

C) Mandatory Signs                            D) None of these 

Chemistry(Ph.D.) 2017

Chemistry(Ph.D.)    (1077)

1.                    Among the following ions which one has the highest paramagnetism?

(A)[Zn(H₂O)₆]²⁺                                                          (B) [Cu(H₂O)₆]²⁺ 

(C) [Fe(H₂O)₆]²⁺                                                          (D) [Cr(H₂O)₆]³⁺     

2.                    In [NiF₆]^4-,  [FeF₆]^3- , [TiF₆]^2- and [CrF₂]

(A)    All shows JahnTaller distortion                 

(B)    (B) [NiF₆]^4- and [TiF₆]^2- shows JahnTaller distortion

(C)    Only [CrF₂] shows JahnTaller distortion 

(D)None of the above

3.                    Which of the following complex ions shows minimum intensity of absorption in UVVisible region?

(A)    [Cr(H₂O)₆]²⁺                                                         (B) [Mn(H₂O)₆]²⁺

            (C) [V(H2O)6]2+                                                                             (D) [Co(H2O)6]2+

4.                    The ESR spectrum of naphthalene radical anion consists of:

(A)    15 lines                 (B) 25 lines                              (C) 30 lines                  (D) 40 lines

5.                    The g value for the benzene radical anion is 2.0025. At what field would you search for resonance in a spectrometer operation at 9.302 GHz?

(A)    0.432 T                 (B) 0.332 T                              (C) 0.872 T                  (D) 0.243 T 

6.                    Melting point of NaCl, NaBr, NaI and NaF will be in order:

(A)    NaCl < NaI < NaF < NaBr                                  (B) NaBr < NaF < NaCl < NaI

            (C) NaI < NaBr < NaCl < NaF                                   (D) NaF < NaCl < NaBr < NaI

7.                    Which is maximum hydrated?

(A)    SiCl₄                     (B) AlCl₃                                            (C) MgCl₂                   (D) NaCl

8.                    Of the following mixtures of two pure acids the strongest acid will be:

(A)    HNO₃ + H₂SO₄                                                    (B) H₃BO₃ + H₂SO₄

            (C) HClO₄ + H₂SO₄                                        (D) KHSO₄ + H₂SO₄

9.                    CO₂ cannot be obtained by heating:

(A)    Na₂CO₃  (B) Li₂CO₃   (C) CaCO₃  (D) Ca(HCO₃)₂

10.                Solution of Na metal in liquid NH₃, is a strong reductant due to the presence of:

(A)    Sodium ion                                                          (B) Solvated electrons

            (C) Sodium amide                                                       (D) Sodium hydride

11.                B H B bridge in B₂H₆ is formed by sharing of: 

(A)    2 electrons (B) 4 electrons (C) 1 electrons (D) 3 electrons

12.                PI₃ upon hydrolysis gives:

(A)    Monobasic acid and dibasic acid   (B) Monobasic acid and tribasic acid

(C) Monobasic acid and a salt                                    (D) Dibasic acid and tribasic acid

13.                Which one of the following is sp3d hybridised:

(A)    XeO₃                    (B) XeOF₂                                         (C) XeOF₄                   (D) XeF₄

14.                The square pyramidal molecular shape is adopted by:

(A)    SOF₄                    (B) PF₅                                                (C) XeOF₄                   (D) ScOCl₄

15.                From molecular orbital configuration of CO and NO+, we would predict:

(A)    Both have a bond order of 3

(B)    Both are paramagnetic

(C)    Both will readily loss an electron to form CO⁺ or NO²⁺

(D)    Both CO and NO+ should not exist

16.                Indicate the organometallic complex that obeys the EAN rule:

(A)    Ni(π-C₅H₅)₂                                                         (B) (C₂H₅)W(CO)₂(π-C₅H₅)

            (C) Co(C₆H₆)                                                  (D) (π-C₅H₅)₂TiCl₂

17.                The trivalent ion having largest size is:

(A)    La                         (B) Ti                          (C) Zr                          (D) Hf

18.                The absolute configuration of two chiral centers (C-1, C-6) present in compound given below is:

O

O

                                                ^H         

(A)    1R, 6R                 (B) 1R, 6S                               (C) 1S, 6R                   (D) 1S, 6S

19.                The relation between compound X and Y is:

HCH 3    CH

CH3       H          CH3

                        X          Y         

(A)    Achiral identical mirror image                             (B) Enantiomers

(C) Meso structure                                                      (D) Racemic mixture

20.                Singlet and triplet carbene can be identified by reaction with:          

(A)    Alkene  (B) Electrophile  (C) cis or trans Alkene   (D) Benzyne

21.                The relationship between two compounds given below are:

O         O

           

                                    H             H            

(A)    Enantiomers                                                         (B) Diastereomers

            (C) Meso                                                                     (D) Regioisomers

22.                Which of the following compound is aromatic in nature?

    A     B    C  D

23.                Alkyl halide with halogen at bridge head are inert to nucleophilic substitution through S_N1 mechanism is due to 

(A)    Steric strain           

(B)    Poor leaving ability of halogen at bridge head

(C)    Rigid geometry  

(D)    Formation of carbocation at bridge head is not possible

24.                Which rule prevent the formation of double bond at bridge head?

(A)    Bredts rule                                                           (B) Crams rule

            (C) Hofmann rule                                                        (D) Saytzeff Rule

25.                The major product formed in the following reaction sequence is:

CH₃

*    

O-CH₂CH=CH₂ 200 °C

             CH3           

CH3                     CH₃

OHOH

(A)( B )

CH₃CH₃

CH CH=CH₂ CH₂CH=CH₂

*   *

CH₃

OH            (D) OH

(C)

*   H2C=HCH2CCH3       H₂C=HCH₂*CCH₃

26.                The selective reduction of α,β-unsaturated ketones to α,β-unsaturated alcohols can be achieved by:

(A)    NaBH₄                                                                 (B) BH₃. SMe₂             

            (C)  LiAlH₄                                                                 (D)   NaBH₄ / CeCl₃

27.                The most suitable reagent for carry out the transformation given below:

OH              O

OH

                 

(A)    Jones reagent                                                       (B) Manganese dioxide            

(C)  Lead tetraacetate                                                 (D)   Swarn’s reagent

28.                The most suitable reagent for carry out the transformation given below:

OH

CHO

                                    ^O        

(A)    NaBH₄                                                                 (B) BH₃. SMe₂             

            (C)  LiAlH₄                                                                 (D)   DIBAL-H

29.                Cope rearrangement is an example of:

(A)    [2,3] Sigmatropic shift                (B) [2,4] Sigmatropic shift   (C)  [3,3] Sigmatropic shift    (D) [1,3] Sigmatropic shift

30.                The following reaction is an example of:

Heat

SO₂ S

                        O2          

(A)    Electrocyclic reaction                 (B) Anti cycloaddition reaction (C)Sigmatropic rearrangement   (D)   Cheleotropic reaction

31.                tert.-Butoxycarbonyl group i.e (CH₃)₃COCO-) protected amine can be deprotected by:

(A)    10%  KOH solution                                             (B) CF₃COOH

            (C) Lithium aluminum hydride                                   (D) Diboran

32.                Aldehydes can be protected as acetals by reaction of aldehydes with excess of alcohol in presence of:    

(A)    10%  KOH solution                                             (B) 10% HCl

            (C) HCl gas                                                                 (D) 10 % H2SO₄

33.                Predict the structure of compound with molecular formula C₈H₁₆. ¹H NMR of this compound exhibit only one signal at δ (1.29, 16H). The compound is:

(A)    Cycloctane                                                           (B) Methyl cyloheptane

            (C) 1,2-Dimethyl cyclohexane                                    (D) 1,2,3-Trimethyl cyclopentane

34.                In the mass spectrum of 1, 2-dibromoethane, approximate ratio of peaks at m/z values 186(M⁺), 188(M⁺+2), 190 (M⁺+4) will be: 

(A)    6:1:4                    (B) 9:6:1                                 (C) 1:2:1                     (D) 4:2:3          

35.                X-rays with wavelength 1.54 Å are reflected from the (1 1 0) planes of a cubic crystal with unit cell a = 6 Å. The Bragg angel, θ, for first order of reflection i.e. n = 1 would be

(A)    10.46^o                   (B) 21.30^o                                (C) 33.01^o                    (D) 46.59^o

36.                A first order reaction is found to have a rate constant, k = 5.5 x 10^-14 sec^-1. The half-life of the reaction is: 

(A)    1.81 x 10¹⁴ sec                                                     (B) 1.26 x 10¹³ sec 

(C) 1.81 x 10¹³ sec                                                      (D) 1.26 x 10¹⁴ sec

37.                Variation of chemical potential with pressure results

(A)    Partial molar entropy                                           (B) Partial molar volume

(C) Partial molar enthalpy                                           (D) Partial molar internal energy

38.                The heat of reaction ½ H₂ + ½ Cl₂  →  HCl at 27⁰C is –22.1 kcal. Calculate the heat of reaction at 77⁰C. The molar heat capacities at constant pressure at 27⁰C for hydrogen, chlorine and HCl are 6.82, 7.70 and 6.80 cal mol^-1 respectively.

(A)    -27.832 kcal                                                         (B) -26.231 kcal

(C) -22.123 kcal                                                          (D) -21.978 kcal

39.                Activity coefficients calculated using Debye-Huckel law are always

(A)    Less than zero                                                      (B) Equal to one 

(C) Less than one                                                        (D) Greater than one

40.                If the wave function of a particle trapped in space between x = 0 and x = L is given by  Ψ(x) = Asin(2Πx/L), where A is a constant. For which value(s) of x will the probability of the finding of particle be maximum

(A)    L/2                                                                      (B) L/4

(C) L/6 and L/3                                                           (D) L/4 and3L/4           

41.                The protecting power of lyophilic colloidal sol is expressed in terms of

(A)    Critical micelle concentration                              (B) Oxidation number

(C) Coagulation value                                                 (D) Gold number

42.                Which of the following methods gives the number average molecular weight of a polymer?

(A)    Light scattering method                          (B) Viscosity method

                        (C)  Sedimentation equilibrium method                     (D) Sedimentation velocity method 

43.                SiF₄, BF₄^- belongs to which point group?

(A)    O_h                         (B) T_d                                  (C) C_2v, D_2h                 (D) D_2h, C_2v

44.                The function of alum used for purification of water is to 

(A)    Coagulate the sol particles                                   (B) Disperse the sol particles               

(C) Emulsify  the sol particles                                     (D) Absorb the sol particles

             

45.                If we operate a Carnot’s engine between the freezing point and boiling point of water, what will be the efficiency of that engine?

(A)    100 %                   (B) 0 %                                    (C) 27 %                      (D) 73%

(5)

46.                If the molar conductance at infinite dilution of NaCl, HCl and CH₃COONa are 126.4, 425.9 and 91.0 S cm² mol^-1 respectively. The molar conductance at infinite dilution for Acetic acid is:  

(A)    390.5 S cm² mol^-1                                                 (B) 300.9 S cm² mol^-1  

(C) 290.5 S cm² mol^-1                                                  (D) 200.9 S cm² mol^-1  

47.                The Tafel equation is an equation in electrochemical kinetics relating 

(A)    The rate of an electrochemical reaction to the concentration

(B)    Cell potential to concentration

(C)    The rate of diffusion current to the potential                                                       

(D)    The rate of an electrochemical reaction to the overpotential

48.                The pure rotational spectrum of CO consists of a series of equally spaced lines separated by 3.84235 cm^-1. The atomic masses are: ¹²C = 19.92168 x 10^-27 kg and ¹⁶O = 26.56136 x 10^-27 kg. The internuclear distance of the molecule is

(A)    2.312 Å                (B) 1.456 Å                             (C) 1.131 Å                 (D) 1.921 Å

49.                What is the equilibrium constant for the reaction given below at 298 K, if E_cell = 1.10 V at 298 K?

                        Zn²⁺ (aq) + Cu (s)         Zn(s) + Cu^{2+ (}aq)

(A)    e57.8                             (B) 1057.8                                           (C) 1085.7                     (D) e85.7

50.                In a solid “AB’ having the NaCl structure, “A” atoms occupy the corners of the cubic unit cell. If all the face centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is:

(A)    AB₂                      (B) A₃B₄                                             (C) A₄B₃                      (D) A₂B