Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) tanα/tan (α + φ) None of these tan(α + φ)/tanα tan(α - φ)/tanα tanα/tan (α + φ) None of these tan(α + φ)/tanα tan(α - φ)/tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate 1.0 cm 2.5 cm 1.5 cm 0.5 cm 1.0 cm 2.5 cm 1.5 cm 0.5 cm ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of percussion is below the centre of gravity of the body and is at a distance equal to h × kG kG2/h h/kG h2/kG h × kG kG2/h h/kG h2/kG ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Whenever a force acts on a body and the body undergoes a displacement, then Power is being transmitted Work is said to be done Body has kinetic energy of translation None of these Power is being transmitted Work is said to be done Body has kinetic energy of translation None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics An ideal machine is one whose efficiency is Between 80 and 90% Between 60 and 70 % 1 Between 70 and 80% Between 80 and 90% Between 60 and 70 % 1 Between 70 and 80% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The motion of a particle round a fixed axis is Translatory Translatory as well as rotary Circular Rotary Translatory Translatory as well as rotary Circular Rotary ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS