## ENGINEERING MECHANICS MCQ

SECTION-2

##### Q36. The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.(a) Zero(b) Minimum(c) Maximum(d) None of theseAns: (a) ZeroQ37. The possible loading in various members of framed structures are(a) Compression or tension(b) Buckling or shear(c) Shear or tension(d) All of the aboveAns: (a) Compression or tensionQ38. Efficiency of a screw jack is given by (where α = Helix angle, and θ = Angle of friction.)(a) tan(α + θ)/tanα(b) tanα/tan (α + θ)(c) tan(α – θ)/tanα(d) None of theseAns: (b) tanα/tan (α + θ)Q39.  The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)(a) n(b) n²(c) 2n(d) 2n – 1Ans: (c) 2nQ40.  The unit of work or energy in S.I. units is(a) Newton(b) Pascal(c) Watt(d) JouleAns: (d) Joule

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##### Read More Sections of Engineering Mechanics

Each section contains maximum 80 Questions. To practice more questions visit other sections.

Engineering Mechanics Objective Questions – Section-1

Engineering Mechanics Objective Questions – Section-2

Engineering Mechanics Objective Questions – Section-3

Engineering Mechanics Objective Questions – Section-4