An important purpose of prime coats is to: promote the bond between the base and

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Question
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

Correct Answer

promote the adhesion between an existing wearing surface and a subsequent wearing surface

GATE Exam Questions problems

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2. 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�

3. A single bay single storey portal frame has hinged left support and a fixed right support. It is loaded with uniformly distributed load on the beam. Which one of the following statements is true with regard to the deformation of the frame?
Options
A. It would sway to the left side
B. It would sway to the right side
C. It would not sway at all
D. None of the above

4. The members EJ and IJ of steel truss shown in the figure below are subjected to a temperature rise of 30� C. The coefficient of thermal expansion of steel is 0.000012 per �C per unit length. The displacement (mm) of joint E relative to joint H along the direction HE of the truss, is
Options
A. 0.255
B. 0.589
C. 0.764
D. 1.026

5. If an element of a stressed body is in a state of pure shear with a magnitude of 80 N/mm² , the magnitude of maximum principal stress at that location is
Options
A. 80 N/mm²
B. 113.14 N/mm²
C. 120 N/mm²
D. 56.57 N/mm²

7. 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

8. 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

9. 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

10. 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

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