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 RA of the hinged support ‘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) wl/4y
- (B) wl/8y
- (C) wl/2y
- (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) 3a/4
- (C) 3b/10
- (D) 3a/10