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 60 80 30 50 60 80 30 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If two forces are in equilibrium, then the forces must (i) Be equal in magnitude (ii) Be opposite in sense (iii) Act along the same line All (i), (ii) and (iii) (i) and (iii) Only (i) (i) and (ii) All (i), (ii) and (iii) (i) and (iii) Only (i) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The resolved part of the resultant of two forces inclined at an angle θ in a given direction is Sum of the forces multiplied by the tangent θ° Arithmetical sum of the resolved parts of the forces in the direction Algebraic sum of the resolved parts of the forces in the direction Difference of the forces multiplied by cosine θ° Sum of the forces multiplied by the tangent θ° Arithmetical sum of the resolved parts of the forces in the direction Algebraic sum of the resolved parts of the forces in the direction Difference of the forces multiplied by cosine θ° ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A projectile is fired at an angle ‘θ’ to the vertical. Its horizontal range will be maximum when ‘θ’ is 0° 30° 45° 90° 0° 30° 45° 90° ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The apparent weight of a man in a moving lift is less than his real weight when it is going down with An acceleration Retardation Uniform speed Linear momentum An acceleration Retardation Uniform speed Linear momentum ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length Is not changed but weight of the bob is increased Must be increased Must be decreased Is not changed but weight of the bob is decreased Is not changed but weight of the bob is increased Must be increased Must be decreased Is not changed but weight of the bob is decreased ANSWER DOWNLOAD EXAMIANS APP
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