Theory of Machine A rotary internal combustion engine has __________ cylinders. Six Five Seven Four Six Five Seven Four ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r cosθ m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, the acceleration of the piston is _________ when the crank OC and connecting rod PC are at right angles to each other. Zero Infinity Any -ve value Any +ve value Zero Infinity Any -ve value Any +ve value ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to revolving masses Constant in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude and direction both Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude and direction both Varies in magnitude but constant in direction ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Two systems shall be dynamically equivalent when All of these The mass of two are same M.I. of two about an axis through e.g. is equal G. of two coincides All of these The mass of two are same M.I. of two about an axis through e.g. is equal G. of two coincides ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, this method will Reduce length of effective stroke of piston Reduce maximum opening of port to steam Cause withdrawing or throttling of steam All of the listed here Reduce length of effective stroke of piston Reduce maximum opening of port to steam Cause withdrawing or throttling of steam All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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