HIL Question-Paper Contributed by Deanandan updated on Mar 2019

HIL Engineering questions and answers

1. A rectangular beam of length I supported at its two ends carries a central concentrated load W at its centre. The maximum deflection occurs 

at the ends

at 1/3 from both ends

at the mid span-Answer

at 1/4 from both ends

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2. If the depth is kept constant for beam of uniform strength then its width will vary proportional to 

M-Answer

Sqrt(M)

M^2

M^3

.
3. When a beam deflects into a uniform strength then its width will vary proportional to 

I/2R

I/8R

I^2 /8R-Answer

I^2 /2d

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4. The longitudinal stress in a thin cylindrical shell is 

Pd/4t-Answer

Pd/2t

Pt/4d

Pt/2d

.
5. The ratio of maximum shear stress and average shear stress for a rectangular section is 

1.5-Answer

2

2.5

3

.
6. A fixed beam of span L carries a central point load W. The maximum sagging bending moment in the beam is 

WL/2

WL/4-Answer

WL/8

WL/16

.
7. Air entrainment in the concrete increases 

workability

strength-Answer

the effects of temperature

the unit weight

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8. The relation between modulus of rupture Fcr and characteristic strength of concrete Fck is given by 

Fcr = 0.35 S Fck-Answer

Fcr = 0.5 S Fck

Fcr = 0.7 S Fck

Fcr = 1.2 S Fck

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9. The compressive strength of 100 mm cube as compared to 150 mm cube is always 

less

more

equal-Answer

may be any of the above

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10. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine's theory 

is always less than 1

is always greater than 1-Answer

can be more than 1

can be less than 1

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11. For bars in tension a standard hook has an anchorage value equivalent to a strength length of 

8

12

16-Answer

24

.
12. Cube strength of controlled concrete to be used for pre-tensioned and post-tensioned work respectively should not be less than 

350 Kg/cm^2 and 420 Kg/cm^2

420 Kg/cm^2 and 530 Kg/cm^2-Answer

420 Kg/cm^2 and 350 Kg/cm^2

530 Kg/cm^2 and 420 Kg/cm^2

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13. The creep strains are 

caused due to dead loads only-Answer

caused due to live loads only

caused due to both dead and live load

independent of loads

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14. Ratio of compressive strength to tensile strength of concrete 

increases with age-Answer

decreases with age

remains constant

none of the above

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15. In limit state design of concrete for flexure, the area of stress block is taken as 

0.36 Fck Xu-Answer

0.42 Fck Xu

0.446 Fck Xu

0.53 Fck Xu

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16. The fitness modulus of the fine aggregate is in the range of 

2.0 to 3.5-Answer

3.5 to 5.0

5.0 to 7.0

6.0 to 8.5

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17. According to IS:456-1978, the maximum reinforcement in a column is 

2%

4%

6%-Answer

8%

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18. The minimum cover in a slab should neither be less than the diameter of bar nor less than 

10 mm

15 mm-Answer

20 mm

13 mm

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19. If the permissible stress in steel in tension is 140 N/mm^2, Permissible stress in concrete in bending compression is 5N / mm^2. Then the depth of neutral axis for a singly reinforced rectangular balanced section will be 

0.35 d

0.40 d-Answer

0.45 d

dependent on grade of concrete also

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20. The slab is designed as one way if the ratio of long span to short span is 

less than 1

between 1 and 1.5

between 1.5 and 1.2

greater than 2-Answer

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21. In any beam when the moment of inertia about the neutral axis is doubled, its deflection is 

doubled

tripled

halved-Answer

minimum

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22. The limits of percentage of the longitudinal reinforcement in a column is given by 

0.15% to 2%

0.8% to 4%

0.8% to 6%-Answer

0.8% to 8%

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23. A rigid prop provided for a beam 

brings the bending for a beam

brings the deflection at the prop to zero-Answer

brings the slopes at the section to zero

brings the shear force at the section to zero

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24. In a simply supported beam AB with a concentrated load W at a distance 'a' from support A and 'b' from support B, the deflection under the load is 

wa^2 b^2 / 3EIL-Answer

wa^2 / 3EI

wa^2 b^2 /3EI

wa^2 b + 2/EIL

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25. For the design of retaining walls the minimum factor of safety against over-turning is taken as 

1.5

2.0-Answer

2.5

3.0

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26. A cantilever beam is loaded by a point load at the free end. It is likely to fail by B.M. 

under the load

at mid span

at support-Answer

none

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27. The distance between centre lines of a broad gauge is 1.686m. The most economic length of sleeper for efficient distribution of B.M. is 

1.866 m

2.866 m-Answer

3.866 m

0.866 m

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28. In a simply supported beam of span L carrying an eccentric couple M acting at a distance A from the left support, the reaction included at the support is 

M/L-Answer

L/M

ML

1/ML

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29. Area of shear force diagram between two sections is 

70 KNm

140 KNm-Answer

280 KNm

can not be found

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30. The section modulus of square section of side A is 

a^2 /6

a^3 /6-Answer

a^4 /12

a^3 /12

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31. The minimum percentage of mild steel reinforcement in walls of RCC water tanks of 450 mm thick is about 

0.20-Answer

0.30

0.24

0.16

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31. A beam of span L m is simply supported at the ends. It is loaded by two equal clockwise moments at the supports. Point of contra flexure acts at 

0.25 m from left support

0.25 m from right support

At mid span-Answer

none of these

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32. The ratio of flexibility of loose beams (b x d) places one over the other to the flexibility of one integral beam (nb x d) is 

h^2

1/h^2

1-Answer

h^3

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33. The earth pressure at a depth d is P the earth pressure at depth d/2 is 

P

4P

0.5P

0.25P-Answer

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34. A reinforced concrete column is considered as a short column, if its slenderness ratio L/bn is less than 

20

18

15

12-Answer

.
35. A common footing provided for two columns is called a 

mat foundation

raft foundation

combined footing-Answer

common foundation

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36. For reinforced concrete (M15) members immersed in sea water the cover shall be 

Same as in the usual case

25 mm more than the cover in the usual cases

40 mm more than the cover in the usual cases

50 mm more than the cover in the usual cases-Answer

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37. The modulus of elasticity of steel is 

150 KN/mm^2

200 KN/mm^2-Answer

250 KN/mm^2

275 KN/mm^2

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38. The number of rivets for connecting a strut to a gusset plate shall not be less than 

2-Answer

3

4

5

.
39. The inclination of a lacing bar with the axis of the compression member shall not exceed 

60

70-Answer

45

30

.
40. For unstiffened webs of girders, the thickness of web shall not be less than 

D1/50

D1/85-Answer

D1/100

D1/150

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41. Spacing of vertical stiffeners in a girder shall not be less than 

0.50d

0.40d

0.33d-Answer

0.25d

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42. The maximum bending moment for a purling may be taken as 

WL/10-Answer

WL/8

WL/12

WL/15

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43. If the foundations of all the columns of a structure are designed on the total live and dead load basis, then 

there will be no settlement of columns

there will be no differential settlements

the settlement of exterior columns will be more than interior columns-Answer

the settlement of interior columns will be more than exterior columns

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44. To minimize the effect of differential settlement, the area of footing should be designed for 

dead load only

dead load + live load

dead load + fraction of live load-Answer

live load + fraction of dead load

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45. A reduction factor Cr, load carrying capacity of a long columns is given by 

Cr = 1.25 - Le/24b-Answer

Cr = 1 - Le/48b

Cr = 1.25 - Le/48b

Cr = 1.5 - Le/48b

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46. Normally pre-stressing wires are arranged in the 

upper part of the beam

lower part of the beam

centre

anywhere

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47. The shear stress intensity changes from the centre to the surface of the shaft with 

uniform rate

varying rate-Answer

remains same

all the above

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48. The formula T/J = NO/L = fs/r when applied to torsion of closely coiled helical spring, the value of J will be calculated with 

mean diameter of the coil D

the diameter of wire of spring-Answer

mean of D and d

(2D + d)3

.
49. The shear stress intensity is minimum at 

axis of shaft-Answer

surface of the shaft

any inside layer of shaft

all the above

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50. A steel member which is subjected to primary tension is called 

Tie-Answer

Tie or beam

Strut

Sling

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51. Sliding failure occurs in a solid gravity dam when 

Resultant of all forces cuts the base of the dam outside

Resultant of all force cuts the base of the inner middle third point

Ratio of overturning moments exceeds one

Shear friction factor is less than 1.5-Answer

.
52. Mean velocity of flow in a river can be directly measured by means of 

Boats

Dams

Surface floats

Rod floats-Answer

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53. The formula used to calculate maximum flood discharge for deccan catchments is 

Dicken's formula

Ryve's formula

Ali Nawab Jung Bahadur formula-Answer

Ingli's formula

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54. Direct run off is the sum of 

Surface run off and mass flow-Answer

Base flow and ground water run off

Deployed sub surface run off and deep percolation

Surface run off and interflow

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55. A fluid is a substance that 

always expands until it fills any container

is parctically incompressible

cannot remain at rest under the action of a shear force-Answer

cannot be subjected to shear forces

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56. In Sutro weir the discharge is proportional to 

H-Answer

H^1/2

H^3/2

H^5/2

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57. Which of the following has highest coefficient of discharge 

Sharp edged orifice

Venturimeter-Answer

Borda's mouth piece running free

Cippoletti weir

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58. ML^-1 T-2 is the dimension of 

Force

Pressure-Answer

Energy

Power

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59. Cavitation is caused by 

high velocity

low barometric pressure

low pressure-Answer

high pressure

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60. Number of rivets required in a joint is 

load/shear strength of a rivet

load/bearing strength of a rivet

load/tearing strength of a rivet

load/rivet value-Answer

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61. The point of contraflexure occurs in 

cantilever beams only

continuous beams only

over hanging beams only-Answer

all types of beams

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62. According to Unwin's formula, if t is thickness of the plate in mm, the nominal diameter of the rivet is 

d = 1.91 t

d = 1.91 t^2

d = 1.91 St-Answer

d = 1.91 St^3

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63. The slenderness ratio of a column is zero when its length 

is zero

is equal to its radius of gyration

is supported on all sides throughout its length

is between the points of zero moments-Answer

.
64 According to IS; 800-lacing bars resists transverse shear equal to 

1.0% of the axial load

2.0% of the axial load

2.5% of the axial load-Answer

3.0% of the axial load

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65. When the length of tension member is too long 

a wire is used

a rod is used

a bar is used-Answer

a single angle is used

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66. A major beam on a building structure, is known as 

a girder

a floor beam

a main beam

all the above-Answer

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67 For simply supported beams, the maximum permitted deflection is 

1/325 of the span-Answer

1/350 of the span

1/375 of the span

1/400 of the span

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68. In case of cantilever beams the ratio of span to the depth should not exceed 

4

8

12-Answer

16

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69. In a fillet weld placed on the sides of the base, the metal experiences 

shear

tension

compression

all the above-Answer

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70. Steel is efficiently used in 

under reinforced section-Answer

over reinforced section

under and over reinforced section

none of the above

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71. The maximum area of tension reinforcement in a beam is 

4% of bD-Answer

4.5% of bD

5% of bD

5.5% of bD

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72. The large moment of resistance of T-beam section is due to 

width of rib

amount of steel

composite action between the flanges and the rib-Answer

depth of rib

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73. If in any given pane, one end of a column is unrestrained, its unsupported length l, shall not exceed 

100 b^2 /D-Answer

120 b^2 /D

125 b^2 /D

140 b^2 /D

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74. The diameter of lateral ties in a column shall not be less than 

6 mm

5 mm-Answer

8 mm

10 mm

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75 The bending moment at a section of a beam is given by wx^3/6 then the expression for the rate of loading is 

wx^4 /24

wx^2 /2-Answer

wx

w

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76. The torque produced in a circular shaft rotating at 100 r.p.m. to produce 1 h.p. is _____ Kgcm 

716.2-Answer

816.2

916.2

616.2

.
77. The weight of foundation may be assumed to be 

15% of the column loads

20% of the column loads

25% of the column loads

10% of the column loads-Answer

.
78  In a continuous footing the area of longitudinal reinforcement required in the direction of wall is 

0.3%-Answer

0.2%

0.5%

0.4%

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79. The net upward pressure on footing p is given by 

W + W1/W.q.

W.q./W + W1-Answer

W - W1/W.q.

W.q./W - W1

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80. Partial safety factor m for steel in limit state design is 

0.5

1.0

1.5

1.15-Answer

.
81. The design strength of materials Fs is given by 

1.1 f/Rm

f/Rm-Answer

f

0.9f

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82. The pre-stressed concrete induces artificially _____ stress in a structure before it is loaded 

compressive

tensile

shear

bending-Answer

.
83. According to IS code the total amount of shrinkage for a post tensioned member is taken as 

2 x 10^4 / log10 (T+2)

3 x 10^-4 / log10 (T+3)

3 x 10^-3 / log10 (T+3)

2 x 10^-3 / log10 (T+3)-Answer

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84  The state at which tendon force is released permanently on the concrete is called 

Transfer

Anchoring

Pre-tensioning-Answer

Post-tensioning

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85. In a thin cylindrical shell if F1 is the hoop stress and F2 is the longitudinal stress induced, maximum shear stress at any point of the material is given by 

F1 + F2 / 2-Answer

F1 - F2 / 2

F1F2 / 2

2F1 / F2

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86. A beam is fixed at one end and is supported at the other end to the level of the fixed end by means of a rigid prop. At the propped end, for any applied load 

only flexural moment is zero-Answer

the flexural moment as well as deflection is zero

the slope as well as the deflection is zero

the slope as well as the flexural moment is zero

.
87. The thickness of lacing bar used in steel ties should not be less than 

6 mm

4.5 mm-Answer

B/40

L/40

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88. Mohr's theorem I gives _____ between two tangents on the elastic line of beams 

Slope

Deflection

S.F.

B.M.-Answer

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89. IS code of practice for steel is 

456

800-Answer

546

none

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90. Select cash/commercial crop from the following 

Maize

Paddy

Cotton-Answer

Wheat

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100. Canal lining 

Increases water logging area

Decreases water logging area-Answer

Does not affect water logging area

Maintains constant water logging area

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101. The diameter of transverse reinforcement of columns should be equal to 1/4 of the diameter of the main steel rods but not less than 

4 mm

5 mm

6 mm

7 mm-Answer

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