Consider the following statements :Pumps in series operation allow the head to increase.Pumps in series operation increase the flow rate.Pumps ill parallel operation increase the flow rate.Pumps in parallel operation allow the head to increase.Which of these statements are correct ?
Consider the following discharge measurement devices :Cylindrical mouthpiece flowing fullSharp-edged orificeConvergent-divergent mouthpieceBorda's re-entrant mouthpiece flowing freeThe correct sequence of increasing order of their discharge coefficients is
A bar 4 cm in diameter is subjected to an axial load ofThe extension of the bar over a gauge length ofcm is 0.cm. The decrease in diameter is 0.cm. The Poisson's ratio is
Stresses obtained from Boussinesq's theory are considered reasonably satisfactory in foundation engineering because:
What is the maximum possible value of Poisson's ratio for a non-dilatant material ?
In setting out a long straight line for the position of transmission towers, it is recommended that the forward point be set out with face-right and face-lett with reference to preceding point and the mean position taken. This field procedure eliminates instruments error where the
Two spheres of masskg andkg, move along a straight line in the same direction with velocities ofm/s and 5 m/s, respectively. If the coefficient of restitution is 0.then the velocity of thekg mass after collision will be
The map projection in which the angle between any pair of short lines is represented correctly is called
Which one of the following methods would give accurate results in determining the direction of the observer's meridian ?
Which one of the following is the correct statement ?Smaller size of aggregates in a concrete mix :
Which one of the following statements is the correct description of the structure of fibre board ?
The area between the two isohytescm andcm iskm2, and that betweencm andcm iskm2. What is the average depth of annual precipitation over the basin ofkm2 ?
As elastic bar of length 'l', cross-sectional area A, Young's modulus of elasticity E and self-weight W is hanging vertically. It is subjected to a load P applied axially at the bottom end. The total elongation of the bar is given by.
What is the shape of influence line diagram for the maximum bending moment in respect of a simply supported beam ?
A channel of bed slope 0.carries a discharge ofm3/s when the depth of flow is 1.0 m. What is the discharge carried by an exactly similar channel at the same depth of flow if the slope is decreased to 0.?
Am tape is held 1 m out of line. The true length is
A square framework formed of uniform heavy rods of equal weight joined together is hung by one corner. A weight W is suspended from each of the three lower corners and the shape of the square is preserved .with the help of a light rod along the horizontal diagonal. The thrust of the light rod is
A septic tank of 7 m3 in volume serves for 5 people. If the rate of accumulation of sludge islitres per capita per year and sludge is removed when it occupiesof its volume, what is the cleaning interval of septic tank ?
Which one of following is not correct for container ports ?
In a project, the contractor is paid on the basis of the running bill for a month. The rate contract for concreting is Rs. 1000/m3 of concrete. The consumption of number of cement of bags of weightkg isThe mix proportion for the concrete is1.4 : 2.with W/C ratio of 0.The approximate billing amount of the month will be
What is the time by which the completion of an activity can be delayed without affecting the start of succeeding activities, called ?
At a Tee-Junction between a lVa brick wall and a 1 brick wall, one uses a
What is the normal depth in a wide rectangular channel carrying 0.5 m3/s discharge at a bed slope of 0.and Manning's n = 0.?
Consider the following statements about a hydraulic ram :Hydraulic ram does not need external power. It works on the fundamental principle of water hammer.The efficiency of a hydraulic ram is only of the order of 8 to 10%.It can be termed as a low, intermittent discharge low-head pumping installation. Which of these statements are correct ?
A saturated clay stratum of thicknessm, bounded on top and bottom by medium coarse sand layers, has a coefficient of consolidation of 0.cm2/s. If this stratum is subjected to loading, it is likely that it would undergoof its primary consolidation in
Which one of the following types of settling phenomenon can be analysed by the classic sedimentation laws of Newton and Stokes ?
The upper limit of area ratio for which the amount of disturbance of soil sample can be considered to be small is
The load carrying capacity of an individual friction pile iskN. What is the total load carrying capacity of a group of 9 such piles with group efficiency factor of 0.8 ?
A symmetrical three-hinged parabolic arch of span L and rise h is hinged at springings and crown. It is subjected to a. U.d.l. W throughout the span. Which the banding moment at a section L/4 from the left support.
Which of the following are the purposes of a groyne as a river training structure ?It contracts a river channel to improve its depth.It protects the river bank.It does not allow silt to deposit in the vicinity.It trains the flow along a certain course.Select the correct answer using the code given below :
In a plane truss, if 'M' is the number of members, 'R' is the number of reactions and 'J' is the number of joints, then for this truss to be determinate
Window sills in residential houses are normally kept at
ABCD is a beam of length 5l which is supported at B and C (having supported length BC = 'l') and having two equal overhangs AB and CD of length 2l each. It carries a u.d.l. of intensity p per unit length throughout the beam as shown in the given figure.The points of contraflexure will occur
Which one of the following methods is generally considered the best for tunnel ventilation ?
Consider the following statements :The daily per capita consumption of water apparently increases withhigher standard of living of people.availability of sewerage in the city.metered water supply.wholesome and potable quality of water.Which of these statements are correct ?
The flownet of activities of a project is shown in the given figure. The duration of the activities are written along the arrows. The critical path of the activities is along
A circular shaft subjected to torsion undergoes a twist ofin a length ofcm. If the maximum shear stress induced is limited tokg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be
The frame shown is redundant to
Which one of the following types of sleepers has the best shock absorbing capacity as well as dampening property ?
Which one of the following is the correct differential equation of the shape of the cable (similar to electrical cables) of unit weight 'q' with small slopes, as shown in the given figure ?
In a truss work as shown in the figure given above, what is the force induced in the member DE ?