The carbon content of structural steel is
Bricks are burnt at a temperature range of
The role of superplasticizer in a cement paste is to
A king closer is a
On application of external stress on timbers, it behaves like
The bricks which are extensively used for basic refractories in furnaces are
Timber can be made reasonably fire-resistant by
Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I (Type of cement)
a. Ordinary Portland cement
b. Rapid hardening cement
c. Low heat cement
d. Sulphate resistant cement
1. The percentage of C3S is maximum and is of the order of 50%
2. The percentages of C2S and C3S are the same and of the order of 40%
3. Reacts with silica during burning and causes particles to unite together and development
4. Preserves the form of brick at high temperature and prevents shrinkage
A well-seasoned timber has a moisture content of about
Consider the following statements:Cement concrete is a/an
1. elastic material
2. visco-elastic material
3. visco-plastic material
Which of the statement given above is /arecorrect ?
Shear strength of timber depends on which one of the following ?
Lignin is regarded as lying outside of the microfibril forming a protective sheath.
As lignin is located only on the exterior it must be responsible for cementing together the fibrils and in imparting shear resistance in the transference of stress throughout the composite.
For high class brick masonry, which are the proper bricks ?
What is the variation of influence line for stress function in a statically determinate structure ?
What is the rotation of the member at C for a frame as shown in figure ?
A uniformly distributed load (w) of length shorter than the span crosses a girder.The bending moment at a section in the girder will be maximum when
The moment -distribution method in structural analysis falls in the category of
A simple supported beam of uniform crosssection has span L and is loaded by a point loadP at its mid-span. The length of elastoplastic zone of the plastic hinge will be
The permissible stresses in rivets under wind load conditions as per IS: 800 can be exceeded byabout
Which one of the following is the load factor ?
Load on connection is not eccentric for
The load factor to be used for plastic design of steel structures for dead load and imposed loadis
At the location of the plastic hinge of a deformed structure
In a riveted joint, failure will occur due to which one of the following ?
What is the maximum slenderness ratio of lacing bars in built-up columns ?
Where should splices in the columns be provided ?
The slenderness ratio of lacing bars should not exceed
Match List-I with List-II and select the correct answer using the code given below the lists:
A cantilever arm is to be attached to a column. Which one among the following is the bestconnection ?
At what value (nearly) is the maximum spacing of purlins for standard asbestos roofing sheetskept ?
Probability of a 10-year flood to occur at least once in the next 4 years is
The performance of a well is measured by its
The slope area method is extensively used in
The discharge per unit drawdown at the well is known as
Uniformity coefficient of filter sand is given by
Zero hardness of water is achieved by
Which one of the following would help prevent the escape of foul sewer gases from a water closet ?
In a water treatment plant, dissolved iron and manganese can be removed from the water by
In the oxidation ditch, the excess sludge is taken to
Service connection consists of
The ultimate BOD value of a waste
From ecological considerations, the minimum level of Dissolved Oxygen (DO) necessary inthe rivers and streams is
Which one of the following equations correctly gives the relationship between the specific gravityof soil grains (G) and the hydraulic gradient (i) to initiate 'quick' condition in a sand having a voidratio of 0.5 ?
In the consolidation drained test on a saturated soil sample, pore water pressure is zero during
A good quality undisturbed soil sample is on which is obtained using a sampling tube havingan area of
Reduction in volume of soil primarily due to squeezing out of water from the voids is called
The nature of earth pressure above dredge line behind a cantilever sheet pile wall is
Laboratory vane shear test can also be used to determine
The collapsible soil is associated with
Consistency as applied to cohesive soils is an indicator of its
A perfect fluid is
Surface tension is due to
Match List I (Physical properties of fluid) with List II (Dimensions/definitions) and select the
correct answer using the codes given below the lists.
Fluid is a substance which offers no resistance to change of
Normal depth in open channel flow is
The hydraulic jump results when
The equation of motion for a viscous fluid known as
The pressure measured with the help of a pressure gauge is called
In laminar flow, local instability occurs first at a point where (symbols have the usual meaning0
The metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement.
The loss of head at entrance in a pipe is
A compound pipe of diameter d1, d2, and d3 having length l1, l2 and l3 is to be replaced by an
equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe.
The size of the equivalent pipe is given by
The loss of head due to viscosity for laminar flow in pipes is
where d = Diameter of pipe
l = Length of pipe
v = Velocity of the liquid in the pipe
μ = Viscosity of the liquid and
w = Specific weight of the flowing
Young's modulus is defined as the ratio of
Flow stress corresponds to
Select the proper sequence
1. Proportional limit
2. Elastic limit
Creep is the gradual increase of
A member having length L, cross sectional area A and modulus of elasticity E is subjected to an
axial load W. The strain energy stored in this member is
The state of stresses on an element is a s shown in following figure
The state of stress at a point in a loaded member is shown in figure below. The magnitude ofmaximum shear stress is
The ratio of linear stress to the linear strain is called
A simply supported beam with a gradually varying load from zero at B and w per unit length at A is shown fig. The shear force at B is equal to
The point of contra flexure is a point where
173.When a closely -coiled helical spring of mean diameter (D) is subjected to an axial load (W),
the deflection of the spring (δ) is given by
where d = Diameter of spring wire.
n = No. of turns of the spring, and
C = Modulus of rigidity for the spring
A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure(P). The volumetric strain is
The rate of change of displacement of a body is called
The law of motion involved in the recoil of gun is
The motion of a wheel of a car is
The wheels of a moving car possess
Which of the following is not exactly a property of material?
The sensitiveness of a bubble tube in a level would decrease if the
Theory of errors and adjustments deals with minimising the effects of
From the probability equation it is found that the most probable values of a series of errors arising out of observations of equal weightage are those for which the sum of their squares is
The standard measurement of the Geodimeter510 is
On which one of the following are the third generation electro-optical instruements based ?
Which one of the following verniers is employed in Abney Level ?
What is the angle between two plane mirrors of an optical square ?
What is the angle of intersection of a contour and a ridge line ?
Which one of the following instruments can be used as a clinometer ?
Which one of the following surveys employs alidade ?
Which one of the following conditions requires geodetic surveying ?
Refraction error is the least in case of
The purpose of a 'Satellite station' in triangulation can be served by :
If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length ofvalley curve required for a headlight sight distance of 100 m will be
Given SSD = 100 m
From headlight sight distance,
Bitumen grade 80/100 indicates that under the standard test conditions, penetration value of bitumen would vary from
In which one of the following location surveys of the road soil profile is sampling done up to adepth of 1 m to 3 m below the existing ground level ?
Match List-I with List-II and select the correct answer using the code given below the lists:
If a road surface is adequately supperelevated on horizontal curve, which one of the followingis the proper distribution of pressure on the vehicle wheels ?
Which of the following factors are used for calculating temperature stress at the critical edge
region in rigid pavement design ?
1. Maximum temperature difference between summer and winter
2. Coefficient of thermal expansion of concrete
3. Slab length
4. Slab width
Select the correct answer using the code given below:
Which one of the following tests is performed in the laboratory to determine the extent ofweathering of aggregates for road works ?
Soundness Test- Resistance of aggregates to weathering
Crushing Test- Strength of aggregates
Impact Test- Toughness of aggregates
Abrasion Test- Hardness of aggregates
If L is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for
the departure of a traverse side of length l, according to Bowditch rule, is