Engineering Mechanics For a self locking machine, the efficiency must be Less than 50% Greater than 50% Equal to 50% 1 Less than 50% Greater than 50% Equal to 50% 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The acceleration of a particle moving with simple harmonic motion, at any instant is given by ω2.y ω3.y ω.y ω2/y ω2.y ω3.y ω.y ω2/y ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ratio of limiting friction and normal reaction is known as Angle of friction Angle of repose Sliding friction Coefficient of friction Angle of friction Angle of repose Sliding friction Coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio for the first system of pulleys is (where n is the number of pulleys.) n² 2n n 2n - 1 n² 2n n 2n - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In a screw jack, the effort required to lift the load is given by (where W = Load lifted, α = Helix angle, and φ = Angle of friction.) P = W tan (φ - α) P = W cos (α + φ) P = W tan (α + φ) P = W tan (α - φ) P = W tan (φ - α) P = W cos (α + φ) P = W tan (α + φ) P = W tan (α - φ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ratio of static friction to dynamic friction is always Equal to one Greater than one Less than one None of these Equal to one Greater than one Less than one None of these ANSWER DOWNLOAD EXAMIANS APP
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