Engineering Mechanics Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane. Meet Do not meet None of these Either ‘A’ or ‘B’ Meet Do not meet None of these Either ‘A’ or ‘B’ ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is 50 200 100 400 50 200 100 400 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum mechanical advantage of a lifting machine is 1 - m 1 / m 1 + m m 1 - m 1 / m 1 + m m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) tan(α - φ)/tanα 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In actual machines, mechanical advantage is _________ velocity ratio. Greater than None of these Equal to Less than Greater than None of these Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The motion of a wheel of a car is Purely translation Combined translation and rotational Purely rotational None of the listed here Purely translation Combined translation and rotational Purely rotational None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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