Engineering Mechanics A screw jack used for lifting the loads is An ideal machine A non-reversible machine A reversible machine None of these An ideal machine A non-reversible machine A reversible machine None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.) 2π. √(l/g) None of these (1/2π). √(l/g) (1/2π). √(g/l) 2π. √(l/g) None of these (1/2π). √(l/g) (1/2π). √(g/l) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular velocity is Both (B) and (C) rad/s m/min Revolutions/min Both (B) and (C) rad/s m/min Revolutions/min ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The Cartesian equation of trajectory is (where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.) y = (gx²/2u² cos²α) - x. tanα y = x. tanα - (gx²/2u² cos²α) y = x. tanα + (gx²/2u² cos²α) y = (gx²/2u² cos²α) + x. tanα y = (gx²/2u² cos²α) - x. tanα y = x. tanα - (gx²/2u² cos²α) y = x. tanα + (gx²/2u² cos²α) y = (gx²/2u² cos²α) + x. tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The total energy possessed by a system of moving bodies Is maximum in the start and minimum at the end Is minimum in the start and maximum at the end Is constant at every instant Varies from point to point Is maximum in the start and minimum at the end Is minimum in the start and maximum at the end Is constant at every instant Varies from point to point ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is h²/(kG² + h²) (kG² + h²)/h² (kG² + h²)/h h/(kG² + h²) h²/(kG² + h²) (kG² + h²)/h² (kG² + h²)/h h/(kG² + h²) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS