Applied Mechanics and Graphic Statics Maximum efficiency of a screw jack for the angle of friction θ, is 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) (1 - sin θ)/(1 + sin θ) (1 - sin θ)/sin θ ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics When a body moves round a fixed axis, it has A circular motion A rotary motion A rotary motion and translatory motion A translatory A circular motion A rotary motion A rotary motion and translatory motion A translatory ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If the angular distance, 0 = 2t³ ‑ 3t², the angular acceleration at t = 1 sec. is 12 rad/sec² 4 rad/sec² 1 rad/sec² 6 rad/sec² 12 rad/sec² 4 rad/sec² 1 rad/sec² 6 rad/sec² ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be 1 rad/sec 0.1 rad/sec 100 rad/sec 10 rad/sec 1 rad/sec 0.1 rad/sec 100 rad/sec 10 rad/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will Always reduce to a couple Be in equilibrium Always reduce to a resultant force Both (A) and (C) Always reduce to a couple Be in equilibrium Always reduce to a resultant force Both (A) and (C) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The condition of equilibrium for any system of forces in a plane is That resultant couple must be zero Both (A) and (B) That polygon of forces must close None of these That resultant couple must be zero Both (A) and (B) That polygon of forces must close None of these ANSWER DOWNLOAD EXAMIANS APP
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