Applied Mechanics and Graphic Statics In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is 25 1.5 5 314 25 1.5 5 314 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The characteristic of a couple is: All listed here Algebraic sum of moments of forces, constituting a couple, about any point, is same A couple can be never the balanced by a single force Algebraic sum of forces, constituting a couple is zero All listed here Algebraic sum of moments of forces, constituting a couple, about any point, is same A couple can be never the balanced by a single force Algebraic sum of forces, constituting a couple is zero ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively 75 and 50 50 and 75 75 and 75 50 and 50 75 and 50 50 and 75 75 and 75 50 and 50 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics One Newton is equivalent to 981 dyne 1 kg. wt 1/9.81 kg. wt 9.81 kg. wt 981 dyne 1 kg. wt 1/9.81 kg. wt 9.81 kg. wt ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is 43839 43864 43833 44052 43839 43864 43833 44052 ANSWER DOWNLOAD EXAMIANS APP
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)/sin θ (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) ANSWER DOWNLOAD EXAMIANS APP
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