Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Robert’s mechanism Peaucellier’s mechanism Grasshopper mechanism Watt’s mechanism Robert’s mechanism Peaucellier’s mechanism Grasshopper mechanism Watt’s mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed Pickering governor Wilson Hartnell governor Hartung governor Inertia governor Pickering governor Wilson Hartnell governor Hartung governor Inertia governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A system of masses rotating in different parallel planes is in dynamic balance if the Resultant force is equal to zero Resultant couple is equal to zero Resultant force and resultant couple are both equal to zero Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant force is equal to zero Resultant couple is equal to zero Resultant force and resultant couple are both equal to zero Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body) 1/2π × √(g/δ) Any one of the listed here 1/2π × √(s/m) 0.4985/√δ 1/2π × √(g/δ) Any one of the listed here 1/2π × √(s/m) 0.4985/√δ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Klein's construction can be used to determine acceleration of various parts when the crank is at Outer dead centre Inner dead centre Right angles to the link of the stroke All of the listed here Outer dead centre Inner dead centre Right angles to the link of the stroke All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A point on a link connecting double slider crank chain traces a Hyperbola Ellipse Parabola Circle Hyperbola Ellipse Parabola Circle ANSWER DOWNLOAD EXAMIANS APP
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