601. A surge tank is provided in a hydropower scheme to
602. If the settlement of a single pile in sand is denoted by S and that of a group of N identical piles (each pile carrying the same load) by Sg, then the ratio Sg/S will
603. For the analysis of flow in a water distribution network, the site engineers prefer the following head loss equation :
604. Consider the following factors :
1. Period of construction, winter/summer
2. Degree of foundation roughness
3. Slab thickness
4. Reinforced/unreinforced
Which of these factors are considered as per IRC for obtaining the maximum expansion joint spacing in rigid pavements ?
605. The concentration of hardness producing cations may be estimated using which one of the following ?
606. A vehicle is moving up on an inclined plane. The vehicle has rear-wheel drive. Force of friction on the rear wheels will be in a direction
607. Consider the following statements :
In the case of close coiled spring carrying an axial loading the spring is subjected to :
1. torsion
2. axial force
3. bending moment the effect of which can be neglected.
Of these statements :
608. Water is a good solvent of ionic salts because?
609. Which one of the following equations correctly gives the relationship between the specific graivity of soil grains (G) and the hydraulic gradient (i) to initiate 'quick' condition in a sand having a void ratio of 0.5 ?
610. What is the bending moment at A for the bent column shown in the D figure ?
611. Consider the following statements :
The principle of superpositions is applied to :
1. Linear elastic bodies
2. Bodies subjected to small deformations.
Of these statements :
612. In which type of lakes, does a perfect ecological equilibrium among the producers, decomposers and consumer groups of organisms exist ?
613. A soil deposit has three layers having same thickness each but the permeabilities of the layers are in the ratio of 1 : 2 : 4 from top to bottom. What is the ratio of average permeability in the horizontal direction to that in the vertical direction ?
614. The three-point problem in hydrographic surveying considers the data on the location of three shore signals A, B and C and the angles α and β subtended by AP, BP and CP at the boat P; and then proceeds to plot the position of P. The problem may become indeterminate is special cases when
615. Horizontal stiffeners are needed in plate girders if the thickness of web is(where d = distance between the flanges and L = span)
616. What is the full width of the land aquired before finalizing highway alignment, known as ?
617. What is the superelevation for a horizontal highway curve of radius 500 m and speed 100 kmph in mixed traffic condition ?
618. Which one of the following is a compression member ?
619. In the riveted connection shown in the given figure, the rivets subjected to maximum stress would include
620. An elementary structural frame ABC consists of a vertical member BC and a cantilever beam AB which carries a load P at the free end A, as shown in the given figure. The bending moment diagram consists of
621. Approximate ratio of the permeabilities of two clean soils having D10 = 0.6 mm and D10 = 0.3 mm is
622. Who was known as ‘The Magician of Menlo Park’?
623. The force in member AB is in the given figure
624. Which one of the following systems of pre-stressing is suitable for pre-tensioned members ?
625. 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 ?