Civil Engineering · all questions

Applied Mechanics And Graphic Statics
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Q241

If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will

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Q242

A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan^-1x, where x is

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Q243

A ladder of weight 'w' rests against a smooth vertical wall and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being

\frac{1}{4}

. The maximum angle of inclination of the ladder to the vertical, if a man of weight 'w' is to walk to the top of it safely, is tan^-1x, where x is

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Q244

The length of a Second's pendulum, is

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Q245

For a simple pendulum, the period of one oscillation is

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Q246

The locus of the instantaneous centre of a moving rigid body, is

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Q247

The inherent property of a body which offers reluctance to change its state of rest or uniform motion, is

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Q248

Engineer's units of force, is

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Q249

If y is force and x is velocity, then dimensions of

\frac{d ^{2} y}{d x ^{2}}

are

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Q250

The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

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Q251

For a simple pendulum, time period for a beat, is

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Q252

Free body diagram is an

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Q253

Maximum efficiency of a screw jack for the angle of friction

θ

, is

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Q254

For perfectly elastic bodies, the value of coefficient of restitution is

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Q255

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

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Q256

If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are

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Q257

The angle of projection for a range is equal to the distance through which the particle would have fallen in order to acquire a velocity equal to the velocity of projection, will be

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Q258

An ordinate in a funicular polygon represents

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Q259

The Centre of gravity of a 10 × 15 × 5 cm T section from its bottom, is

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Q260

The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

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