Applied Mechanics and Graphic Statics

301. The units of inertia of mass are

1. kg/m
2. kg/m2
3. m4
4. kg-m2

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302. The units of moment of inertia of an area are

1. kg/m
2. kg/m²
3. m⁴
4. m³

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303. The velocity of a body fallen from height , on reaching the ground is given by

1. v = 2gh
2. v = 2gh²
3. v = (2gh)
4. v (2gh)

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304. The velocity of a moving body, is

1. A vector quantity
2. A scalar quantity
3. A constant quantity
4. None of these

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305. The velocity ratio of an inclined plane of inclination θwith horizontal for lifting a load is

1. sin θ
2. cos θ
3. tan θ
4. cosec θ

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306. The velocity ratio of the differential wheel and axle is

1. R/r1 - r2
2. 2R/r1
3. 3R/r1 - r2
4. 2R/r1 + r2

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307. Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and

1. Concurrent
2. Parallel
3. Concurrent parallel
4. None of these

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308. Which of the following is a scalar quantity?

1. Energy
2. Momentum
3. Torque
4. Impulse

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309. Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is

1. 2 sec
2. 3 sec
3. 4 sec
4. 5 sec

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310. To attain the synchronous orbit, the launch of a satellite, is done from a place

1. On equator
2. On 30° latitude
3. On 45° latitude
4. On the poles

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