# Home / Civil Engineering / Strength of Materials - Civil Engineering :: section-1

### Civil Engineering :: Strength of Materials - Civil Engineering

1. The weight of a body is due to

2.  A.  centripetal force of earth B.  gravitational pull exerted by the earth C.  force of attraction experienced by par-ticles D.  gravitational force of attraction towards the centre of the earth.   3. The product of either force of couple with the arm of the couple is called

4.  A.  resultant couple B.  moment of the forces C.  resulting couple D.  moment of the couple   5. A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal

6.  A.  density of metal can’t be determined B.  metal is twice as dense as water C.  metal will float in water D.  metal is twice as dense as unknown fluid   7. Coulomb friction is the friction between

8.  A.  bodies having relative motion B.  two dry surfaces C.  two lubricated surfaces D.  solids and liquids   9. Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one

10.  A.  ellipse B.  hyperbola C.  parabola D.  circle   11. The unit of force in S.I. units is

12.  A.  kilogram B.  newton C.  watt D.  dyne   13. The unit of work or energy in S.I. units is

14.  A.  newton B.  pascal C.  watt D.  joule.   15. The unit of power in S.I. units is

16.  A.  newton meter B.  watt C.  joule D.  kilogram meter/sec.   17. The C.G. of a plane lamina will not be at its geometrical centre in the case of a

18.  A.  right angled triangle B.  equilateral triangle C.  square D.  circle   19. Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction

20.  A.  along the plane B.  horizontally C.  vertically D.  at an angle equal to the angle of friction to the inclined plane   