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QUESTION: 1

Granite is an example of

Solution:

**Granite** is a light-colored igneous rock with grains large enough to be visible with the unaided eye. It forms from the slow crystallization of magma below Earth's surface. **Granite** is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals.

QUESTION: 2

Laterite is chemically classified as

Solution:

QUESTION: 3

An aggregate is called fine aggregate if it iscompletely passes through

Solution:

QUESTION: 4

Solution:

QUESTION: 5

The change in the slope between two points in astraight member under flexure is equal to the areaof diagram between those two points. thisstatement is known as

Solution:

QUESTION: 6

The conjugate beam of a cantilever with end Afixed and end B is free is

Solution:

QUESTION: 7

A beam has end A fixed end B is on roller andthere is internal hinge at C. Its conjugate beam is

Solution:

QUESTION: 8

The degree of static indeterminacy of plane frameshown fig. is

Solution:

QUESTION: 9

In case of cast iron

Solution:

QUESTION: 10

A solid conical bar of uniformly diameter has diameter D at one end and zero at the other end. If the length of the bar is L, modulus of elasticity E and E and unit weight γ, the extension of the bar due to self -weight only is

Solution:

Consider an element of length dx at a distance x from the free end.Let diametre at this section be d.

Self-weight acting on this element=γ times volume of part below the section

QUESTION: 11

The coefficient of thermal expansion of steel is 12 × 10^{–6}/ºC and that of stainless steel is 18×10^{–6}/ºC. Length of steel bar is twice the length of stainless steel bar. The ratio of expansion of steel bar to expansion of stainless steel bar, when the rise of temperature is same

Solution:

**Correct Answer :- d**

**Explanation : **Sl = (l * α * ΔT)

Sl_{steel}/Sl_{s.s} = (l_{steel} * α * ΔT)/(l_{s.s} * α * ΔT)

=> (2l^{steel} * 12 * 10^{-6})/(l^{s.s} * 18 * 10^{-6})

= 4/3

QUESTION: 12

If a bar of volume V is stressed in axial direction by P and Young's modulus is E, strain energy stored is

Solution:

QUESTION: 13

Stress developed due to application of a loadsuddenly is ______ times that due to same loadbeing applied gradually.

Solution:

QUESTION: 14

If a simply supported beam AB of span is subjected to an external moment M at distance a from end A, the reactions R_{A} and R_{B} are

Solution:

**Correct Answer :- d**

**Explanation : Sum of moment at point A=0**

**therefore Mo= Rb*l**

**Rb= Mo/l**

**similarly sum of moment at point B =0**

**Ra= Mo/l**

QUESTION: 15

Section modulus of a triangular cross-section of width b and height h is

Solution:

QUESTION: 16

A cantilever carries a uniformly distributed load fixed end to the midspan in the first case and UDL of same intensity from midspan to the free end in the second case. The ratio of maximum deflections in the two cases is

Solution:

QUESTION: 17

If qs is maximum shear stress due to torque and G is the modulus of rigidity of material of solid

shaft, strain energy stored is

Solution:

**Correct Answer :- B**

**Explanation : **The strain energy stored in a solid circular shaft subjected to shear stress (q) is (where G = Modulus of elasticity for the shaft material),

q_{s}^{2}/4G * volume

QUESTION: 18

If M is bending moment and T is the torque a section on a circular shaft of diameter d. maximum principal stress is

Solution:

QUESTION: 19

If M is the moment and T is the torque acting at a section in circular shaft of diameter d. maximum shear stress is

Solution:

QUESTION: 20

M 45 concrete is regarded as

Solution:

QUESTION: 21

If age of loading on concrete structure is 28 days, the creep coefficient may be taken as

Solution:

QUESTION: 22

In the working stress method of R.C.C design, modular ratio between steel and concrete used

is

Solution:

QUESTION: 23

In the working stress method of R.C.C design factor of safety used for concrete and mild steel due to bending are respectively

Solution:

Solution: A

In Working Stress Method

Factor of safety for concrete due to bending equal to 3 is considered on 28 days.

Factor of safety for steel in tension due to bending equal to 1.8 is considered on yield strength for mild steel.

QUESTION: 24

In working stress method of design, factor ofsafety is1.Ultimate stress Working stress 2.Ultimate load Working load

Solution:

QUESTION: 25

Which one of the following is the correct shape of stress block showing distribution of compressive stress in concrete beam at limit state across the depth (Ref fig.)

Solution:

QUESTION: 26

For a rectangular beam of size b × d, with yield stress of steel fy, area of steel Ast, concrete with characteristic strength fck, for under-reinforced section, neutral axis to depth ratio is given by

Solution:

QUESTION: 27

When the depth of a beam exceeds______ side face reinforcement be provide

Solution:

For beams exceeding the depth of 750 mm Side Face Reinforcement is provided to ensure lateral stability as well as confinement to increase the ductility of the beam member. Moreover, this additional side face reinforcement which is not included in load sharing mechanism also helps in dissipation of additional forces.

QUESTION: 28

IS 456–2000 recommends that in any column a minimum of _____ reinforcement should be used

Solution:

QUESTION: 29

The lightest I-section for the same depth is

Solution:

QUESTION: 30

Partial safety factors for dead load and live load for limit state of strength are

Solution:

QUESTION: 31

Size of rivet hole is kept _____ more them size of rivet

Solution:

QUESTION: 32

If P is the pitch, d is nominal diameter and d' bolt hole diameter, minimum pitch is

Solution:

QUESTION: 33

If t is the thickness of thinner plate in a bolted connection of tension member, pitch shall not bemore than the

Solution:

QUESTION: 34

The assumptions made in the design of bearing bolted connections arei. the friction between the plates is negligibleii. the shear is uniform over the cross sectioniii. bolts in a group subject to direct load sharethe load equally

i. the friction between the plates is negligible

ii. the shear is uniform over the cross section

iii. bolts in a group subject to direct load share the load equally

Solution:

QUESTION: 35

If a fillet weld is to the square edge, the size of weld shall be at least ______ less than the edgethickness

Solution:

QUESTION: 36

In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where *d* = Diameter of rivet hole)

Solution:

QUESTION: 37

The effective slenderness ratio of battened columns shall be taken as ____ times the maximum slenderness ratio of the column

Solution:

QUESTION: 38

Kinematic viscocity is equal to

Solution:

QUESTION: 39

1 stoke is equal to

Solution:

QUESTION: 40

The reciprocal of coefficient of compressibility is known as

Solution:

QUESTION: 41

Falling drops of water become spherical due to

Solution:

QUESTION: 42

A submerged body is subjected to a buoyancyequal to the weight of the fluid displaced by it.This principle is known as

Solution:

QUESTION: 43

If centre of gravity G lies above the centre ofbuoyancy B, the submarine is in

Solution:

QUESTION: 44

If the velocity vector varies from point to pointat any instant of time the flow is known as

Solution:

QUESTION: 45

If three pipes are connected in series,

Solution:

QUESTION: 46

If the froude number in open channel flow is lessthan 1.0, the flow is known as

Solution:

QUESTION: 47

In case of a triangular notch,

Solution:

QUESTION: 48

Cipoletti weir is a type of trapezoidal weir inwhich the sides have a slope of

Solution:

QUESTION: 49

Solution:

QUESTION: 50

Solution:

QUESTION: 51

specific gravity of a substance is the ratio of itsmass in air to the mass of equal volume of waterat

Solution:

QUESTION: 52

Water content is

Solution:

QUESTION: 53

Coefficient of curvature of soil is

Solution:

QUESTION: 54

With usual notations, Stokes' law for velocity of setting of soil on still water is

Solution:

QUESTION: 55

Shrinkage limit is defined as ______

Solution:

QUESTION: 56

If h_{1} is total hydraulic head, N_{f} is total number of flow channels and N_{d} is total number of potential drops in a flow net, then seepage flow rate is given by

Solution:

QUESTION: 57

Compaction is due to

Solution:

Soil compaction occurs when soil particles are pressed together, reducing pore space between them. Heavily compacted soils contain few large pores, less total pore volume and, consequently, a greater density. A compacted soil has a reduced rate of both water infiltration and drainage. This happens because large pores more effectively move water downward through the soil than smaller pores.

QUESTION: 58

Coefficient of earth pressure of cohesionless soil K_{a} is given by

Solution:

QUESTION: 59

In case of cohesive soil, active earth pressure at top is where C = Cohesion and a=45º + /2

Solution:

QUESTION: 60

The ultimate bearing capacity of a soil for general shear failure in case of strip footing is

Solution:

QUESTION: 61

For square footing ultimate bearing capacity Terzaghi suggested the expression for finding ultimate bearing capacity from consideration of shear strength.

Solution:

QUESTION: 62

For circular footing Terzaghi suggested the following formula to get ultimate bearing capacity from the consideration of shear strength.

Solution:

QUESTION: 63

The consolidatio settlement is given by the expression

Solution:

QUESTION: 64

In plate load test width of pit should be at least____ times the plate.

Solution:

QUESTION: 65

The value of factor of safety adopted infoundation design is

Solution:

QUESTION: 66

Suitable method for forecasting population of a large city, which has reached its saturation population is

Solution:

QUESTION: 67

According to Indian Standards for domestic usewater requirement per capital per day is

Solution:

QUESTION: 68

For Indian conditions a provision of _____ perhead per day is sufficient quantity of water forfirefighting

Solution:

QUESTION: 69

Thermal stratification of impounded water is inthe order

Solution:

QUESTION: 70

Temperature of water more than ______ isconsidered objectionable

Solution:

QUESTION: 71

Which one of the following is not turbidity teston water ?

Solution:

QUESTION: 72

B. coil or E. coil are harmless organisms but theirpresence in water indicates the

Solution:

QUESTION: 73

Bacteria that need oxygen to live are known as

Solution:

QUESTION: 74

The most common and universal coagulant usedin water works is

Solution:

QUESTION: 75

The process of purifying water by passing itthrough a bed of fine granular material is knownas

Solution:

QUESTION: 76

Back washing is necessary in

Solution:

QUESTION: 77

In rapid sand filters, filter trouble is

Solution:

QUESTION: 78

Checks valves in water distribution is used to

Solution:

QUESTION: 79

Reflux valve is also known as

Solution:

QUESTION: 80

A septic tank is a

Solution:

QUESTION: 81

Solution:

QUESTION: 82

In a diagonal scale only

Solution:

QUESTION: 83

Three-point problem in plane tabling may besolve by

Solution:

QUESTION: 84

The horizontal angle between the true meridianand magnetic meridian is known as

Solution:

QUESTION: 85

The bearings of the lines *AB* and *BC* are 146° 30' and 68° 30'. The included angle *ABC* is

Solution:

QUESTION: 86

In levelling, height of instrument means

Solution:

QUESTION: 87

Correction for refraction is approximately

Solution:

QUESTION: 88

An imaginary line joining the point of intersectionof the cross-hairs of the diaphragm and the opticalcentre of teh object glass is known as

Solution:

QUESTION: 89

The process of turning the telescope through 180ºin vertical plane is known as

Solution:

QUESTION: 90

The portion of the roadway between outer edgesof carriageway and drains in case of cutting is known as

Solution:

QUESTION: 91

Camber is provided in the road for

Solution:

QUESTION: 92

Transition curves are required to

Solution:

QUESTION: 93

IRC recommends spacing between two consecutive expansion joints should not be more than

Solution:

QUESTION: 94

The total length of a valley formed by two gradients - 3% and + 2% curve between the two tangent points to provide a rate of change of centrifugal acceleration 0.6 m/sec^{2}, for a design speed 100 km ph, is

Solution:

QUESTION: 95

Solution:

QUESTION: 96

Fish bolts are made from

Solution:

QUESTION: 97

On degree of curve is equal to where R is the radius of the curve

Solution:

QUESTION: 98

The station consisting of a block hut only andhaving home and warner signals is classified as

Solution:

QUESTION: 99

The yard for reception, sorting and reforming ofgoods trains is known as

Solution:

QUESTION: 100

If the deflection at the free end of a uniformly loaded cantilever beam of length 1 m is equal to 7.5 mm, then the slope at the free end is

Solution:

Deflection of a cantilever beam for uniform load is given by:

δmax= WL^{4}/8EI

While the slope at the free end is given by:

θmax=WL^{3}/6EI

Taking ratio of these two equations we get,

(WL^{4}/8EI)/(WL^{3}/6EI)=7.5/θmax

⇒6*1000mm/8=7.5/θmax

θmax=0.01 radian.

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