Theory of Machine Frequency of vibrations is usually expressed in 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 Number of cycles per minute ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as Tractive force Hammer blow None of these Swaying couple Tractive force Hammer blow None of these Swaying couple ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the axes of the first and last wheels are coaxial, then the train is known as Simple train of wheels Reverted gear train Epicyclic gear train Compound train of wheels Simple train of wheels Reverted gear train Epicyclic gear train Compound train of wheels ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring) 1/2π. √(δ/g) 2π. √(g/δ) 2π. √(δ/g) 1/2π. √(g/δ) 1/2π. √(δ/g) 2π. √(g/δ) 2π. √(δ/g) 1/2π. √(g/δ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine To obviate axial thrust, following gear drive is used Single helical gear in which one of the teeth of helix angle a is more Double helical gears having opposite teeth Double helical gears having identical teeth Mutter gears Single helical gear in which one of the teeth of helix angle a is more Double helical gears having opposite teeth Double helical gears having identical teeth Mutter gears ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because The shafts are rotating at very high speeds The system is unbalanced Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor The shafts are rotating at very high speeds The system is unbalanced Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor ANSWER DOWNLOAD EXAMIANS APP
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