A turn-table on railways is used for

Heliograph is a type of

A locomotive has four pairs of driving wheels carrying an axle load ofx 10⁴ N. The maximum load that can be pulled if the coefficient of friction is 1/is

Which type of light energy is effectively absorbed by CO₂ in the lower boundary of the troposphere ?

The following steps are involved in laying a sewer in a trench :
Transferring the center line of the sewer to the bottom trench.
Setting sight rails over the trench.
Driving pegs to the level of the invert line of the sewer.
Placing the sewer of these steps is The correct sequence of these steps is

Consider the following statements regarding Plane Table surveying :
It is less accurate than chain surveying.
It is not necessary to do accurate centering of plane table for small scale survey.
Compass rule may be made use for adjusting the plane table transverse.
From the instrument station, resectors are drawn to plot the position of object in the field.
Of these statements :

A horizontal rod AB carries three loads of 3.0 kg, 7.0 kg and 10.0 kg at distances of 2.0 cm, 9.0 cm andcm respectively from A where it is hinged. Neglecting the weight of the rod, which is the point at which the rod will be balance ?

Distemper is used to coat

In a PERT network, the activity durations are given as t_o (optimistic), t_p (pessimistic) and t_m (most likely time). What is the variance of is activity ?

In a PERT network, the activity durations are given as t_o (optimistic), t_p (pessimistic) and t_m (most likely time). What is the variance of is activity ?

In a PERT network, the activity durations are given as t_o (optimistic), t_p (pessimistic) and t_m (most likely time). What is the variance of is activity ?

Two simply supported beams B₁ and B₂ have spans l and 2l respectively. Beam B₁ has a cross-section of 1 x 1 units and beam B₂ has a cross-section of 2 x 2 units. These beams are subjected to concentrated loads W each at the centre of their spans. The ratio of the maximum flexural stress in these beams is

The plastic modulus of a section is 5 x 10^-4m³. Its shape factor is 1.2 and the plastic moment capacity iskNm. What is the value of the yield stress of the material ?

A particle of mass 3 kg moving in a straight line decelerates uniformly from a speed ofm/s tom/s in a distance ofm. Before it comes to rest, it will travel a further distance pf

The maximum energy stored at elastic limit of a material is called

According to ICAO recommendations, what is the rate of elevation correction for the runway above MSL ?

For designing end bearing piles of square cross-section in clays having average unconfmed compressive strength of 6 t/m², the net ultimate bearing capacity may be taken as

A cylindrical shell made of mild steel plate ofcm diameter is to be subjected to an internal pressure ofkg/cm². If the material yields atkg/cm², assuming factor of safety as four and using maximum principal stress theory, thickness of the plate will be

A soil has a liquid limit ofand lies above the A-line when plotted on a plasticity chart. The group, symbol of the soil as per Soil Classification is

A cold drawn seamless steel tubing subject to internal pressure, has a diameter of 6 cm and wall thickness of 0.2 cm. The ultimate strength of steel iskg/cm². The bursting pressure (in kg/cm²) is

Consider the following strengths of concrete :
Cube strength
Cylinder strength
Split-tensile strength
Modulus of rupture
The correct sequence in decreasing order of these strengths is

If the pressure carried by a CBR specimen at 2.5 mm penetration is 3.5 N/mm², the CBR of the soil is

The absolute maximum Bending Moment in a simply supported beam of spanm due to moving udl of 4 t/m spanning over 5 m is

A plot of land 60°m xm is measure steel tape. If the standard error of length width measurements is taken as ± 1 cm, the standard error of the area of the plot be

Which of the following factors are associated with the behaviour of sand mass during earthquake to cause liquefaction ?
Number of stress cycles
The frequency, and amplitude of vibration of waves generated by an earthquake
Characteristics of sand
Relative density
Select the correct answer using the codes given below :

What is the effective height of a free-standing masonry wall for the purpose of computing slenderness ratio ?

A reinforced concrete slab ismm thick. The maximum size of reinforcement bar that can be used is

The following steps are involved in making a spigot and socket joint of cast iron pipes used in water supply systems :
Tarred gasket or hemp yarn in wrapped around the spigot.
The sipgot end is centered into the socket end of the preceding pipe.
A joining ring end is placed around the barrel and against the face of the socket.
The gasket or hemp yarn in caulked slightly.
Molten pig lead is poured and then caulked.
The correct sequence of these steps is

Consider the following statements :
Collision diagram is used to
study accident pattern
eliminate accidents
determine remedial measures
make statistical analysis of accidents
Of these statements :

The graphical condition for equilibrium of concurrent forces is that

A high efficiency pump is required for low discharge, high head and low maintenance cost. Delivery of water need not be continuous. The pump need not run at high speed. Which one of the following is the correct choice ?

The ratio of total elongation of a bar of uniform cross-section produced under its own weight to the elongation produced by an external load equal to the weight of the bar is

To generatehp under a head ofm while working at a speed ofrpirt, the turbine of choice would be

Consider the following methods of preservation of timber :
Dipping
Brushing or spraying
Pressure impregnation
The correct sequence in decreasing order of the effectiveness of these methods of preservation is

Activated sludge is the

Consider the following statements :
A : In masonry, bricks are joined together by cement mortar.
B : Cement mortar adheres more effectively to brick surface than any other material.

Consider the following statements :
An ascending gradient of 1 inmeets an ascending gradient of 1 into form a Valley curve.
A falling gradient of 1 inmeets a falling gradient of 1 into form a summit curve.
The length of summit curve is determined on the basis of head light sight distance.
Which one of the statements given above is/are correct ?

In a tilted aerial photograph, if the swing is 230°, then the rotation angle is equal to

For total reaction time of 2.5 seconds, coefficient of friction 0.design speedkm/h, what is the stopping sight distance on a highway ?

Consider the following statements :
Sand in mortar is needed for
decreasing the quantity of cement.
reducing shrinkage.
decreasing the surface area of the binding material.
increasing the strength.
Of these statements :

Purlins are provided, in industrial buildings, over roof trusses to carry dead loads, live loads and wind loads. As per IS code, what are they assumed to be ?

What is the use of a station pointer ?

Ratio of bearing capacity of double Under Reamed (U.R.) pile to that of single U.R. pile is nearly

Activated sludge is the

In a tilted aerial photograph, if the swing is 230°, then the rotation angle is equal to

The given figure shows gradually varied flow in an open channel with a beak in bed slope. Types of water surface profiles occurring from left to right are

Consider the following statements :
An ascending gradient of 1 inmeets an ascending gradient of 1 into form a Valley curve.
A falling gradient of 1 inmeets a falling gradient of 1 into form a summit curve.
The length of summit curve is determined on the basis of head light sight distance.
Which one of the statements given above is/are correct ?

What is the use of a station pointer ?

Activated sludge is the

The shear force diagram of a beam is shown in the given figure. The absolute maximum bending moment in the beam is