# Practice Test: Question Set - 02

**1. The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at**

- (A) Supports

- (B) Quarter span

- (C) Mid span

- (D) None of the above

**2. A stone is whirled in a vertical circle, the tension in the string, is maximum**

- (A) When
the string is horizontal

- (B) When
the stone is at the highest position

- (C) When
the stone is at the lowest position

- (D) At
all the positions

**3. At a given instant ship ‘**

*A’*is travelling at 6 km/h due east and ship ‘*B’*is travelling at 8 km/h due north. The velocity of ‘*B’*relative to ‘*A’*is- (A) 7 km/hrs

- (B) 2 km/hrs

- (C) 1 km/hrs

- (D) 10 km/hrs

**4. The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is**

- (A) 1/4

- (B) 1/2

- (C) 3/4

- (D) 2

**5. The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be**

- (A) 0.1 rad/sec

- (B) 1 rad/sec

- (C) 10 rad/sec

- (D) 100 rad/sec

**6. A weight ‘**

*W’*is suspended at the free end of a light member hinged to a vertical wall. If the angle of inclination of the member with the upper wall is θ°, the force introduced in the member, is- (A)

*W*sec θ

- (B)

*W*cos θ

- (C)

*W*sin θ

- (D)

*W*cosec θ

**7. The beam shown in below figure is supported by a hinge at ‘**

*A’*and a roller at ‘*B’*. The reaction*R*of the hinged support ‘_{A}*A’*of the beam, is- (A) 10.8

*t*

- (B) 10.6

*t*

- (C) 10.4

*t*

- (D) 10.2

*t*

**8. Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is**

- (A) 9.3 m/sec

- (B) 8.3 m/sec

- (C) 7.3
m/sec

- (D) 6.3
m/sec

**9. The force polygon representing a set of forces in equilibrium is a**

- (A) Triangle

- (B) Open polygon

- (C) Closed polygon

- (D) Parallelogram

**10. The centre of gravity of a homogeneous body is the point at which the whole**

- (A) Volume
of the body is assumed to be concentrated

- (B) Area
of the surface of the body is assumed to be concentrated

- (C) Weight
of the body is assumed to be concentrated

- (D) All
the above

**11. A satellite moves in its orbit around the earth due to**

- (A) Gravitational
force

- (B) Centripetal
force

- (C) Centrifugal
force

- (D) None of
these

**12. The force acting on a point on the surface of a rigid body may be considered to act**

- (A) At
the centre of gravity of the body

- (B) On
the periphery of the body

- (C) On any point
on the line of action of the force

- (D) At
any point on the surface normal to the line of action of the force

**13. For a non-concurrent force system to be in equilibrium**

- (A) Only the closure of force polygon is sufficient

- (B) Only the closure of funicular polygon is sufficient

- (C) Both force polygon and funicular polygon must close

- (D) None of the above

**14. If ‘**

*l’*is the span of a light suspension bridge who’s each cable carries total weight (*w*) and the central dip is ‘*y’*, the horizontal pull at each support, is- (A)

*w*

*l*/4

*y*

- (B)

*w*

*l*/8

*y*

- (C)

*w*

*l*/2

*y*

- (D)

*wl*

**15. The C.G. of the shaded area of the below figure whose curve**

*OM*is a parabola from*y*-axis, is- (A)

*a*/4

- (B) 3

*a*/4

- (C) 3

*b*/10

- (D) 3

*a*/10

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