Applied Mechanics and Graphic Statics If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is None of these —rad/sec 30 —rad/sec 10 —rad/sec 20 None of these —rad/sec 30 —rad/sec 10 —rad/sec 20 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics 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 50 30 80 60 50 30 80 60 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The force polygon representing a set of forces in equilibrium is a Parallelogram Closed polygon Open polygon Triangle Parallelogram Closed polygon Open polygon Triangle ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis? Disc with smaller density Both discs will have same rotational inertia Disc with larger density None of these Disc with smaller density Both discs will have same rotational inertia Disc with larger density None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The point about which combined motion of rotation and translation of a rigid body takes place, is known as Point of rotation Instantaneous centre Instantaneous axis Virtual centre Point of rotation Instantaneous centre Instantaneous axis Virtual centre ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A train weighing 196 tonnes experiences a frictional resistance of 5(11/22) per tonne. The speed of the train at the top of a down gradient 1 in 78.4 is 36 km/hour. The speed of the train after running 1 km down the slope, is 3 √5 m/sec 5 √10 m/sec 10 √5 m/sec 5 √3 m/sec 3 √5 m/sec 5 √10 m/sec 10 √5 m/sec 5 √3 m/sec ANSWER DOWNLOAD EXAMIANS APP
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