Applied Mechanics and Graphic Statics A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is 100 N 80 N 60 N 120 N 100 N 80 N 60 N 120 N ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If a set of given forces are such that their free vectors build a closed polygon, then The resultant force and resultant couple are always zero The resultant force and resultant couple both may not be zero The resultant force is zero but resultant couple is not zero The resultant force is zero but resultant couple may not be zero The resultant force and resultant couple are always zero The resultant force and resultant couple both may not be zero The resultant force is zero but resultant couple is not zero The resultant force is zero but resultant couple may not be zero ANSWER DOWNLOAD EXAMIANS APP
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)/sin θ sin θ/(1 + sin θ) (1 - sin θ)/(1 + sin θ) (1 + sin θ)/(1 - sin θ) (1 - sin θ)/sin θ sin θ/(1 + sin θ) (1 - sin θ)/(1 + sin θ) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If ‘l’ is the span of a light suspension bridge who’s each cable carries total weight (w) and the central dip is ‘y’, the horizontal pull at each support, is wl/4y wl wl/8y wl/2y wl/4y wl wl/8y wl/2y ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is, 15 N 25 N 5 N 10 N 15 N 25 N 5 N 10 N ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The ratio of the ranges on the inclined plane with motion upward and with motion downward for a given velocity, angle of projection will be tan (α - β)/tan (α + β) cos (α - β)/cos (α + β) sin (α - β)/sin (α + β) sin (α + β)/sin (α - β) tan (α - β)/tan (α + β) cos (α - β)/cos (α + β) sin (α - β)/sin (α + β) sin (α + β)/sin (α - β) ANSWER DOWNLOAD EXAMIANS APP
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