Theory of Machine Frequency of vibrations is usually expressed in Number of cycles per second Number of cycles per minute Number of cycles per hour None of these Number of cycles per second Number of cycles per minute Number of cycles per hour None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine V-belts are usually used for Long drives None of these Long and short drives Short drives Long drives None of these Long and short drives Short drives ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because The system is unbalanced The shafts are rotating at very high speeds Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor The system is unbalanced The shafts are rotating at very high speeds Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, and θ = Angle of inclination of crank to the line of stroke) m.ω².r sinθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r cosθ m.ω².r (cosθ - sinθ) m.ω².r sinθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r cosθ m.ω².r (cosθ - sinθ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine ________ is an inversion of Double slider crank chain. Coupling rod of a locomotive Hand pump Reciprocating engine Scotch yoke mechanism Coupling rod of a locomotive Hand pump Reciprocating engine Scotch yoke mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If the pressure angle is __________, a reciprocating follower will jam in its bearings. Small Too small Too large Large Small Too small Too large Large ANSWER DOWNLOAD EXAMIANS APP
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