Theory of Machine The flank of the tooth is the surface of the tooth __________ the pitch surface. None of these Below Above At None of these Below Above At ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary 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 (cos 2θ/n) m.ω².r sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Frequency of vibrations is usually expressed in Number of cycles per minute Number of cycles per second Number of cycles per hour None of these Number of cycles per minute Number of cycles per second Number of cycles per hour None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Unbalanced couples are caused only at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced forces are not dangerous at higher speeds Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced forces are not dangerous at higher speeds Effects of unbalances are directly proportional to the speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The total number of instantaneous centers for a mechanism consisting of n links are n/2 n(n - 1)/2 n - 1 n n/2 n(n - 1)/2 n - 1 n ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The locus of a point on a thread unwound from a cylinder will be Cycloidal A straight line Involute A circle Cycloidal A straight line Involute A circle ANSWER DOWNLOAD EXAMIANS APP
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