Q.1

Consider the following statements :
If two planes at right angles carry only shear stress of magnitude 'q', then the
diameter of Mohr's circle would equal 2q
centre of the Mohr's circle would lie at the origin
principal stresses are unlike and have magnitude 'q'
angle between the principal plane and the plane of maximum shear would be equal toOf these statements :

  • 1 and 2 are correct
  • 2 and 4 are correct
  • 3 and 4 are correct
  • 1, 2, 3 and 4 are correct
Q.2

Consider the following statement: High early strength of cement is obtained as a result of
fine grinding.
decreasing the lime content
burning at higher temperatures
increasing the quantity of gypsum.
Of these statements :

  • 1 and 2 are correct
  • 1 and 3 are correct
  • 2, 3 and 4 are correct
  • 1, 3 and 4 are correct
Q.3

In a tree, the cambium layer is situated between :

  • the outer bark and inner bark
  • the inner bark and sap wood
  • the sap wood and heart wood
  • the pith and heart wood
Q.4

The laboratory tests on a sample yielded the following results :
Plasticity index :%
Liquidity index : - 0.
Activity number: 1.58.
Which of the following inferences can be drawn ?
The soil is very stiff.
The soil is medium soft.
The soil is highly plastic.
The soil is medium plastic.
The soil is active.
Select the correct answer using the codes given below :

  • 1, 3 ana 5
  • 1, 3 and 4
  • 2, 3 and 5
  • 1, 2 and 4
Q.5

A perfect plane frame having n number of members and j number of joints should satisfy the relation

  • n < (2j - 3)
  • n = (2j - 3)
  • n > (2j - 3)
  • n = (3 - 2j)
Q.6

A cantilever of constant depth carries a uniformly distributed load on the whole span. To make the maximum stress at all sections the same, the breadth of the section at a distance x from the free end should be proportional to

  • x
  • x
  • x2
  • x3
Q.7

Self-purification of running streams may be due to

  • sedimentation, oxidation land coagulation
  • dilution, sedimentation and oxidation
  • dilution, sedimentation and coagulation
  • dilution, oxidation and coagulation
Q.8

As the state of strain of an element of dense sand changes from plain strain to trivial condition, the effective angle of internal friction :

  • increases
  • decreases
  • remains constant
  • first increases and then remains constant
Q.9

In photogrammetric surveying, the image of the top of the hill ismm, from the principal point of the photograph. If the elevation of the top of the hill ism and the flying height ism above datum, then the relief displacement is

  • 0.9 mm
  • 9 mm
  • 90 mm
  • 900 mm
Q.10

As a natural material, timber is which one of the following ?

  • Isotropic
  • Anisotropic
  • Homogeneous
  • Heterogeneous
Q.11

Seasoning of timber is required to

  • soften the timber
  • harden the timber
  • straighten the timber
  • remove sap from the timber
Q.12

The performance of a well is measured by its

  • Specific capacity
  • Specific yield
  • Storage coefficient
  • Permeability coefficient
Q.13

A clay layer 3 m deep is sandwiched by a pervious material. The soil reachesconsolidation in 3 years. At another site, the same clay layer is bounded by impervious boundary at the bottom and sand at the top. What is the time taken by this layer to reachsettlement ?

  • 9 years
  • 12 years
  • 15 years
  • 21 years
Q.14

Which one of the following statements is correct ?
Lug angles:

  • are necessarily unequal angles
  • are always equal angles
  • increase the shear resistance of joint
  • reduce the length of joint
Q.15

A saturated clay layer with single drainage face takes 4 years to attaindegree of consolidation. If the clay layer had double drainage, then the time required to attaindegree of consolidation is

  • 8 years
  • 4 years
  • 2 years
  • 1 year
Q.16

Consider the following statements :
Butterfly valve is used for throttling and controlling flow rate.
Check valve is used in the discharge piping of a pump.
Air-relief valve is placed in the pipeline at the valleys to automatically vent the accumulated air in the system
Altitude valve is provided in user overhead tank.
Which of the statements given above are correct ?

  • 1, 2 and 4 only
  • 1, 2 and 3 only
  • 1 and 2 only
  • 3 and 4 only
Q.17

The total observed runoff volume during a 4 hour storm with a uniform intensity of 2.8 cm/hr is 25.2 x 106 m3 from a basin ofkm2 area. What is the average infiltration rate for the basin ?

  • 3.6 mm/hr
  • 4.8 mm/hr
  • 5.2 mm/hr
  • 5.5 mm/hr
Q.18

Two closed thin vessels, one cylindrical and the other spherical with equal internal diameter and wall thickness are subjected to equal internal fluid.pressure. The ratio of hope stresses in the cylindrical to that of spherical vessels is

  • 4.0
  • 2.0
  • 1.0
  • 0.5
Q.19

The compacting factor test of cement concrete determines its

  • strength
  • porosity
  • degree of compaction under loads
  • workability
Q.20

Which of the following determination are NOT necessary for raw water from a lake for use as source of supply of water for boiler-feed ?
Turbidity
Bacterial count
Iron
Hardness.
Select the correct answer using the codes given below :

  • 1, 2 and 3
  • 1, 2 and 4
  • 1, 3 and 4
  • 2, 3 and 4
Q.21

Consider the following parameters related to a rotary intersection :
Width of the weaving section.
Length of the weaving section.
Proportion of weaving traffic.
Weaving angle.
Width of the carriageway at entry.
Capacity is generally expressed in terms of

  • 1, 2, 3 and 4
  • 1, 2, 3 and 5
  • 1, 2 and 3
  • 4 and 5
Q.22

Consider the following statements :
In subsoil exploration programme the term "significant depth of exploration" is upto
the width of foundation
twice the width of foundation
the depth where the additional stress intensity is less thanof overburden pressure
the depth where the additional stress intensity is less thanof the overburden pressure
hard rock level.
Of these statements :

  • 1, 3 are 5 are correct
  • 2, 3 and 5 are correct
  • 1 and 4 are correct
  • 2 and 4 are correct
Q.23

At a point in a strained material, if two mutually perpendicular tensile stresses ofkg/cm2 andkg/cm2 are acting, then the intensity of tangential stress on a plane inclined atto the axis of the minor stress will be :

  • 125 kg/cm2
  • 250 kg/cm2
  • 500 kg/cm2
  • 1000 kg/cm2
Q.24

Consider the following statements :
Selection of the type and grade of the bituminous binder is made on the basis of
cost of the binder material.
climatic conditions of the area and the construction technique.
degree of importance of the road.
thickness of pavement layer to be constructed.
Which of these statements is/are correct ?

  • 1 only
  • 2 only
  • 1, 2 and 4
  • 1, 2 and 3
Q.25

The phenomenon of decreased resistance of a material due to reversal of stress is called

  • resilience
  • elasticity
  • creep
  • fatigue
Q.26

Consider the implicit details between, before and after successive steps in/within the order while doing time computations on a CPM network. (FP => Forward Pass; BP => Backward Pass; LET => Late Event Time; EET => Early Event Time; TF => Total Float; PD => Project Duration; AD => Activity Duration)
The correct sequence of computation would be

  • EET, PD, LET, TF
  • EET, PD, LET, AD
  • AD, EET, BP, PD
  • FP, EET, TF, PD
Q.27

Which one of the following is not biodegradable organic matter ?

  • Carbohydrates
  • Fats
  • Alcohols
  • Petrol
Q.28

As the state of strain of an element of dense sand changes from plain strain to trivial condition, the effective angle of internal friction :

  • increases
  • decreases
  • remains constant
  • first increases and then remains constant
Q.29

What is the prime objective of providing a point lock ?

  • To ensure that each switch is correctly set.
  • To ensure that the point may not be operated while the train is on it.
  • To detect any obstruction between stock rail and tongue rail.
  • To limit the riding of the conical exterior circumference of the wheels.
Q.30

What is the distance through which the tongue rail moves laterally at the toe of the switch for movement of trains called ?

  • Flangeway clearance
  • Heel divergence
  • Throw of the switch
  • None of the above
Q.31

Consider the following statements :
A : The collapse load found in the plastic analysis of a continuous beam is affected by sinking of supports.
B : Large elastic stresses are caused at the supports due to sinking of supports.
Of these statements :

  • Both A and B are true
  • A is true but B is false
  • Both A and B are false
  • A is false but B is true
Q.32

Which of the following pairs is not correctly matched ?

  • B.O.D. - Strength of sewage
  • Methane - Product of anerobic decomposition
  • C.O.D. - Biodegradability ofwaste-water
  • Nitrate - Methemoglobinemia
Q.33

Consider the following statements :
Among the more common varieties of timber, namely, sal, mango and deodar,
sal is the strongest.
mango is the least durable.
deodar is the lightest.
Of these statements :

  • 1, 2 and 3 are correct
  • 1 and 2 are correct
  • 1 and 3 are correct
  • 2 and 3 are correct
Q.34

A beam of rectangular sectionmm xmm carries certain loads such that the Bending Moment at a section A is M ans at another section B it is (M + C).The distance between the sections A and B is 0.5 m and there are no external loads acting between the two sections. If the value of C isNm, then the maximum shear stress is

  • 1.5 MN/m2
  • 1.0 MN/m2
  • 0.5 MN/m2
  • 0.25 MN/m2
Q.35

A car accelerates from rest to a speed ofm/s and the energy spent in doing this is E. If the car is further accelerated fromm/s to 20m/s, what is the amount of energy to be spent further ?

  • E
  • 2E
  • 3E
  • 4E
Q.36

Consider the following statements :
I. The intersection of the first and last ray in funicular diagram is on the line of action of the resultant.
II. Intersection of first and last ray in polar diagram gives the magnitude of the resultant.
Of these statements :

  • both I and II are true
  • I is false but II is true
  • I is true but II is false
  • both I and II are false
Q.37

A retaining wall 8 m high with a smooth vertical back retains a clay back fill with C' =kN/m2, φ =and γ =kN/ m3. (Given sin≅ 0.25). The pressure at the top will, nearly, be equal to

  • 35.2 kN/m2
  • 23.0 kN/m2
  • 27.6 kN/m2
  • 11.5 kN/m2
Q.38

Presence of which one of the following in water is the major cause of depression paralysis, blindness and/or birth defects ?

  • cadmium
  • Chromium
  • Manganese
  • Mercury
Q.39

When a particular discharge is flowing in a horizontal pipe, a mercury-water U-tube manometer connccted to the entrance and throat of a venturimeter fitted in the pipe recorded a deflection ofcm. If the same discharge flowed through the same pipe kept at an inclination ofto the horizontal, then the corresponding deflection recorded by the U-tube manometer will be

  • 25 2 cm
  • 25/2 cm
  • 25/2 cm
  • 25 cm
Q.40

In consolidation testing, curve fitting method is used to determine

  • compression index
  • swelling index
  • coefficient of consolidation
  • time factor
Q.41

Which one of the following tools is required to bend the rails for track maintenance ?

  • Rail tong
  • Jim crow
  • Crowbar
  • Wire claw
Q.42

The losses in prestress in pre-tensioning system are due to :
elastic deformation of concrete when wires are tensioned successively
friction
shrinkage and creep of concrete
Select the correct answer using the codes given below:

  • 1, 2 and 3
  • 2 and 3
  • 1 alone
  • 3 alone
Q.43

Couple M is applied at C on a simply supported beam AB. What is the maximum shear force for the beam ?

  • Zero
  • M
  • 2 M/3
  • M/3
Q.44

A cantilever beam of span 4 m and cross-sectional are 0.3 m wide and 0.4 m deep is subjected to a concentrated load ofkN at the free end. Neglecting self-weight, the maximum bending stress at a section 2 m from the free end will be

  • 20 kN/m2
  • 2500 kN/m2
  • 4000 kN/m2
  • 5000 kN/m2
Q.45

The compacting factor test of cement concrete determines its

  • porosity
  • strength
  • degree of compaction under loads
  • workability
Q.46

In a closed traverse, the sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures. The closing line will lie in the

  • N-W quadrant
  • N-E quadrant
  • S-E quadrant
  • S-W quadrant
Q.47

Consider the following statements :
In subsoil exploration programme the term "significant depth of exploration" is upto
the width of foundation
twice the width of foundation
the depth where the additional stress intensity is less thanof overburden pressure
the depth where the additional stress intensity is less thanof the overburden pressure
hard rock level.
Of these statements :

  • 1, 3 are 5 are correct
  • 2, 3 and 5 are correct
  • 1 and 4 are correct
  • 2 and 4 are correct
Q.48

Force of buoyancy on a floating body equals

  • total pressure on the vertical projection of the body
  • total pressure on the horizontal projection of the body
  • weight of the liquid equal to the volume of the body
  • weight of the liquid equal to the immersed volume of the body
Q.49

A grinding wheel rotatesrpm. When power supply is cut off, the wheel stops completely inseconds. What is the number of revolutions made by the wheel before coming to rest ?

  • 3000
  • 1000
  • 500
  • 250
Q.50

In cement concrete pavements, tie bars are installed in

  • expansion joints
  • contraction joints
  • warping joints
  • longitudinal joints
0 h : 0 m : 1 s