30651. The force in member AB is in the given figure
30652. Which one of the following systems of pre-stressing is suitable for pre-tensioned members ?
30653. Consider the following statements :
Liquefaction is a phenomenon
1. observed in fine sands
2. associated with development of positive pore pressure.
Which of the statements given above is/are correct ?
30654. Which of the following pairs is/are correctly matched ?
1. Eutrophication.... Nutrient accumulation leading to ecosystem change occurring in impounded water.
2. Autotrophism.... Utilization, rearrangement and decomposition of complex materials predominate.
3. Heterotrophism....Predominance of fixation of light energy, use of simple inorganic substances and built-up complex substances.
Select the correct answer from the codes given below :
30655. Consider the following statements :
A grillage base is checked for
1. bending
2. shear
3. compression
4. web crippling
Which of these statements are correct ?
30656. In the pin-jointed plane truss shown above, what is the magnitude and nature of force in member BC?
30657. A footing is resting on a fully saturated clayey strata. For checking the initial stability, shear parameters are used from which one of the following ?
30658. Consider the following factors :
1. Reaction time
2. Speed
3. Coefficient of longitudinal friction
4. Gradient
Which of these factors are taken into account for computing braking distance ?
30659. For the purpose of designing a well point system for lowering ground water table in a sandy silt deposit, the coefficient of permeability of the soil is to be determined. Which one of the following methods would be most suitable ?
30660. Which of the following are associated with alum coagulation ?
1. A decrease of alkalinity in treated water
2. Formation of hydroxide flocs of aluminium
3. A slight decrease of pH in treated water
4. An increase of permanent hardness
Select the correct answer using the codes given below :
30661. Consider the following statements :
For an over-reinforced (singly reinforced) rectangular RC section.
1. the lever arm will be less than that for a balanced section.
2. the maximum stress developed by steel would equal the allowable stress in steel.
3. the maximum stress developed by concrete would equal allowable stress in concrete.
Of these statements :
30662. ABC is rigid bar. It is hinged at A and suspended at B and C by two wires BD and CE made of copper and steel respectively, as shown in the given figure. The bar carries load of 1t at F, mid-way between B and C. Given Ac = 4 cm2, A = 2 cm2, Ec = 1 x 106 kg/cm2, Es = 2 x 106 kg/cm2. Ps is the force in the steel wire and Pc is the force in the copper wire, the ratio Pc/Ps will be
30663. A hydraulic model of a spillway is constructed with a scale 1 : 16. If the prototype discharge is 2048 cumec, then the corresponding discharge for which the model should be tested is
30664. A beam has the same section throughout its length with I = 1 x 108mm4, It is subjected to a uniform B.M. = 40 kNm. E = 2 x 105 N/mm2, What is the radius of curvature of the circle into which the beam will bend in the form of an arc of a circle ?
30665. Consider the following statements in respect of plate girders :
1. A large number of cover plates are provided over flange angles so that curtailed flanges match the bending moment diagram exactly.
2. At least one cover plate should extend over the entire span so that rain water may not enter and corrode the connections.
3. A minimum of one-third of flange area should be provided in flange angles and balance in flange cover plates for stability.
Which of the statements given above are correct ?
30666. A rigid cantilever frame ABC is fixed at C. It carries a load P at A, as shown in the given figure. Neglecting axial deformation, the vertical deflection of the point A is given by (EI constant throughout the frame).
30667. If R is the radius of the main curve, θ the angle of deflection S the shift and L the length of the transition curve, then the total tangent length of the curve is given by
30668. Which one of the following, gives the correct decreasing order of the densities of a soil sample?
30669. What does the critical path in PERT represent ?
1. The shortest path for the earliest completion of the project.
2. The longest path of the network from the initial to final event,
30670. A simply supported beam of constant width and varying depth and uniform strength is subjected to a central concentrated load. The depth of the beam dx at a distance x from one of the supports is proportional to
30671. In the given figure, the maximum bending moment at the fixed end of the cantilever caused by the UDL is M. The bending moment at section 1/5 from the free end is
30672. Bricks are burnt at a temperature range of
30673. Drop panel is a structural component in :
30674. A ship is berthed in a chamber and lifted by principles of buoyancy. Such a chmber is called
30675. Which one of the following pairs is not correctly matched ?
30676. The following refer to the stability analysis of an earth dam under different conditions :
1. Stability of D/S slope during steady seepage.
2. Stability of U/S slope during sudden drawdown.
3. Stability of U/S and D/S slopes during construction.
Of these statements :
30677. A bar AB, 4 cm is diameter and 4 m long is rigidly fixed at its ends. A torque of 12000 kg/cm is applied at a section of the bar, one metre from end A. The fixing coupled TA and TB (in kg. cm) at the supports A and B will be respectively
30678. Consider the following assumptions of Bowditch method :
1. Angular measurements are more precise than linear measurements.
2. Linear measurements are more prescise than angular measurements.
3. Erros in linear measurements are proportional to L .
4. Correction to latitude or departure of any side = Total error in L (or D) x Length of that side / Perimeter of traverse.
Which of these statements are correct ?
30679. Who has won the Malaysian Open Women’s singles title?
30680. King George visited India during the viceroyalty of?
30681. Two particles of masses 21 gm and 28 gm are connected by a light inextensible string which passes over a fixed smooth pulley. The tension in the string in the ensuing motion will be
30682. Which of the following measures are resorted to for strengthening masonry walls ?
1. Provide cross walls.
2. Pre-stressing.
3. Provide gunite slab on the surface(s) of walls.
4. Provide buttresses.
Select the correct answer using the code given below :
30683. Which one of the following surveys is employed for collecting sufficient data in connection with sewage disposal and water supply works ?
30684. Cost-benefit studies are essential to
30685. What is the value of flexural strength of M 25 concrete ?
30686. The correct sequence of the increasing order of the disturbance to soil samples obtained from chunk, piston, split spoon and remolded sampler is
30687. In an external focusing tachometer, the fixed interval between static hairs is 5 mm, the focal length of the objective is 25 cm, and the distance of the vertical axis of the instrument from the optical centre of the objective is 15 cm. Which one of the following is the set of constant of the tachometer ?
30688. Which one of the following treatments is economically effective in the control of guinea worm disease ?
30689. Which of the following data would be required for the design of progressive type computerised traffic signal system in a series of intersection on a busy street ?
1. Volume of fast moving traffic
2. Volume of pedestrain traffic
3. Volume of slow traffic
4. Approach speed of fast moving traffic.
Select the correct answer using the codes given below :
30690. A sailor, standing on the deck of a ship, just sees the light beam from a lighthouse on the shore. If the height of the sailor's eye and of the light beam at the lighthouse, above the sea level, are 9 m and 25 m respectively, what is the distance between the sailor and the lighthouse ?
30691. The displacement of a particle undergoing rectilinear motion along the x-axis is given by x = 2t3- 21t2 + 60t + 6 (m)
The acceleration of the particle when its velocity is zero, is
30692. In a circular sewer of diameter D, if the depth of flow is D/4, what is the wetted perimeter equal to ?
30693. The standard time meridian in India is 82°30'E. If the standard time at any instant is 20 hours 10 minutes, the local mean time for the place at a longitude of 20°E would be
30694. With a vertical point load on the surface when considering the vertical plane passing through the load, the stress gets reduced by 52.3% at a depth of
30695. Consider the following statements
The main reinforcement in the counterfort in a counterfort retaining wall of R.C.C is provided on the :
1. inclined face in front of counterfort.
2. bottom face in. back counterfort.
3. inclined face in back counterfort.
4. bottom face in front counterfort.
Select the correct answer using the codes given below :
30696. In a free vortex, velocity
30697. In the schematic flownet shown in the given figure the hydraulic potential at point A is
30698. A 4-hour rainfall in a catchment of 250 km2 produces rainfall depths of 6.2 cm and 5.0 cm in successive 2-hour unit periods. Assuming the φ index of the soil to be 1.2 cm/hour, the run-off volume in ha-m will be
30699. Consider the following statements :
The critical path in a network plan of a project
1. helps in planning efficient time schedule
2. indicates the shortest path in time
3. helps in crashing the project judiciously
4. helps in encouraging discipline in execution.
Of these statements :
30700. Which of the following pairs are correctly matched ?
1. Alpha iron....non magnetic
2. Beta iron....strongly magnetic
3. Gamma iron....non-magnetic and capable of dissolving carbon.
4. Delta iron....non-magnetic and absorbs very little carbon.
Select the correct answer using the codes given below :