GATE Exam Questions Questions

• In a drained triaixal compression test, a saturated specimen of a cohesionless sand fails under a deviatoric stress of 3 kgf/cm2 when the cell pressure is 1 kgf/cm2 . The effective angle of shearing resistance of sand is about
• To have zero active pressure intensity at the tip of a wall in cohesive soil, one should apply a uniform surcharge intensity of
• An important purpose of prime coats is to:
• The ideal form of curve for the summit curve is :
• Presence of excess nitrates in river water indicates :
• A septic tank is
• In a reinforced concrete beam-column, the increase in the flexural strength along with the increase in the axial strength occurs
• The number of revolutions of a current meter in 50 seconds were found to be 12 and 30 corresponding to the velocities of 0.25 and 0.46 m/s respectively. What velocity (in m/s) would be indicated by 50 revolutions of that current meter in one minute?
• Two steel plates each of width 150 mm and thickness 10 mm are connected with three 20 mm diameter rivets placed in a zig-zag pattern. The pitch of the rivets is 75 mm and gauge is 60 mm. If the allowable tensile stress is 150 MPa, the maximum tensile force that the joint can withstand is
• Consistency Index for a clayer soil is [LL = Liquid Limit, PL = Plastic Limit, PI = Plas-ticity Index, W - natural moisture content]
• The minimum dissolved oxygen content (ppm) in a river necessary for the survival of aquatic life is
• A soil having particles of nearly the same size is known as
• M - θ relationship for a simply supported beam shown below is given by :
• The maximum shear stress in a solid shaft of circular cross-section having diameter d subjected to a torque T is τ. If the torque is increased by four times and the diameter of the shaft is increased by two times, the maximum shear stress in the shaft will be
• The values of liquid limit and plasticity index for soils having common geological origin in a rectricted locality usually define
• A trickling filter is primarily a :
• Critical factors for the activated sludge treatment process are
• Maximum strain at the level of compression steel for a rectangular section having effective cover to compression steel as d' and neutral axis depth from compression face as xu is
• MPN index is a measure of one of the following :
• Presence of ifluoride in water greater than permissible level of 1.5 mg/l causes