GATE Exam Questions problems
- 1. 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
Options- A. 37°
- B. 45°
- C. 53°
- D. 20° Discuss
Correct Answer: 37°
- 2. To have zero active pressure intensity at the tip of a wall in cohesive soil, one should apply a uniform surcharge intensity of
Options- A. 2c tan ?
- B. 2c cot ?
- C. - 2c cot ?
- D. - 2c tan ? Discuss
Correct Answer: 2c cot ?
- 3. An important purpose of prime coats is to:
Options- A. promote the bond between the base and the wearing courses
- B. promote the adhesion between an existing wearing surface and a subsequent wearing surface
- C. promote the bond between the sub-base cause and the sub-grade
- D. increase the stability of the sub-grade Discuss
Correct Answer: promote the adhesion between an existing wearing surface and a subsequent wearing surface
- 4. The ideal form of curve for the summit curve is :
Options- A. spiral
- B. parabola
- C. circle
- D. lemniscate Discuss
Correct Answer: parabola
- 5. Presence of excess nitrates in river water indicates :
Options- A. recent pollution of water with sewage
- B. past pollution of water with sewage
- C. immediate pollution of water with sewage
- D. no pollution of water with sewage Discuss
Correct Answer: past pollution of water with sewage
- 6. A septic tank is
Options- A. an aerobic method of on site sewage treatment
- B. an anaerobic method of on site treatment
- C. a physical method of water treatment
- D. a physicochemical method of water treatment Discuss
Correct Answer: an anaerobic method of on site treatment
- 7. In a reinforced concrete beam-column, the increase in the flexural strength along with the increase in the axial strength occurs
Options- A. beyond the elastic limit of the material
- B. when the yield of the tension reinforcement governs the strength
- C. when the crushing of the concrete in the compression zone governs the strength
- D. never Discuss
Correct Answer: when the yield of the tension reinforcement governs the strength
- 8. 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?
Options- A. 0.42
- B. 0.50
- C. 0.60
- D. 0.73 Discuss
Correct Answer: 0.60
- 9. 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
Options- A. 195.66 kN
- B. 195.00 kN
- C. 192.75 kN
- D. 225.00 kN Discuss
Correct Answer: 192.75 kN
- 10. Consistency Index for a clayer soil is [LL = Liquid Limit, PL = Plastic Limit, PI = Plas-ticity Index, W - natural moisture content]
Options- A.
- B.
- C. LL - PL
- D. 0.5 w Discuss
Correct Answer:
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