Applied Mechanics and Graphic Statics Maximum efficiency of a screw jack for the angle of friction θ, is (1 - sin θ)/(1 + sin θ) (1 + sin θ)/(1 - sin θ) sin θ/(1 + sin θ) (1 - sin θ)/sin θ (1 - sin θ)/(1 + sin θ) (1 + sin θ)/(1 - sin θ) sin θ/(1 + sin θ) (1 - sin θ)/sin θ ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is 30° 45° 120° 60° 30° 45° 120° 60° ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The maximum frictional force which comes into play, when a body just begins to slide over the surface of a another body, is known None of these Sliding friction Rolling friction Limiting friction None of these Sliding friction Rolling friction Limiting friction ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The vertical reaction at the support ‘A’ of the structure shown in below figure, is 2 t 3.5 t 3 t 1 t 2 t 3.5 t 3 t 1 t ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The displacement of a particle which moves along a straight line is given by S = 4t³ + 3t²- 10 where ‘S’ is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is 1 sec 1.2 sec ½ sec 1.5 sec 1 sec 1.2 sec ½ sec 1.5 sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth) r r2 1/r log r r r2 1/r log r ANSWER DOWNLOAD EXAMIANS APP
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