A. 3/4
B. 4/5
C. 5/3
D. 3/5
Correct Answer: 3/5 ✔
Last Updated: January 18, 2019
Related MCQs
- A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be__________?
- Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are__________?
- The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be__________?
- The condilion for a lifting machine to be reversible is that its efficiency should be__________?
- In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is__________?
- A system of copianar forces acting on a rigid body can be reduced to__________?
- Force polygon method is applicable for__________?
- The diagram showing the point of application and line of action of forces in their plane is called__________?
- The bending moment in an arch is proportional to__________?
- An ordinate in a funicular polygon represents__________?
- In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics ?
- The number of funicular polygons which can be drawn to pass through two specified points in the space diagram are__________?
- If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will__________?
- Williot-Mohr diagram is used to determine deflection in__________?
- For a non-concurrent force system to be in equilibrium__________?
- The condition of equilibrium for any system of forces in a plane is__________?
- A funicular polygon cannot be made to pass through__________?
- The pole distance is measured in__________?
- The member forces in a statically in determinate truss__________?
- The graphical method of determining the forces in the members of a truss is based on__________?
- The force polygon representing a set of forces in equilibrium is a__________?
- A system of copianar forces is in equilibrium when__________?
- Free body diagram is an__________?
- In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively__________?
- A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec2)__________?
- A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. The height to which the ball will rebound after striking the floor is__________?
- One Joule is equivalent to__________?
- If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is__________?
- A car goes round a curve of radius 100 m at 25 m/sec. The angle to the horizontal at which the road must be banked to prevent sideways friction on the car wheels is tan”1 x, where x is (Assume g = 10 m/sec2)__________?
- A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will__________?
- Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is__________?
- The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at__________?
- Minimum pull in a suspended cable with supports at two ends is equal to__________?
- Cartesian form of the equation of catenary is__________?
- Intrinisic equation of catenary is given by__________?
- A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is__________?
- A heavy ladder resting on floor and against a vertical wall may not be in equilibrium if__________?
- One Newton is equivalent to__________?
- The dimensions of power are__________?
- The ratio of unit of force in gravitational system to that in absolute system is__________?
- A quantity measured in the C.G.S system of units has dimensions M”2L3 T3/2. What numerical factor would be required to convert the quantity to SI units ?
- The dimensions of Gravitational Universal constant ‘G’ are__________?
- One Newton is equivalent to__________?
- The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to__________?
- At the instantaneous center, the velocity of the moving lamina at any instant is__________?
- Which of the following represents the state of neutral equilibrium ?
- One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is__________?
- A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be__________?
- If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to__________?
- It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to__________?
- A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is__________?