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) 2π. √(g/δ) 2π. √(δ/g) 1/2π. √(g/δ) 1/2π. √(δ/g) 2π. √(g/δ) 2π. √(δ/g) 1/2π. √(g/δ) 1/2π. √(δ/g) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2.50 mm 3.0 mm 2 mm 2.22 mm 2.50 mm 3.0 mm 2 mm 2.22 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of spherical pair is Bolt and nut Ball and socket joint Lead screw of a lathe Ball bearing and roller bearing Bolt and nut Ball and socket joint Lead screw of a lathe Ball bearing and roller bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove) cosecβ secβ sinβ cosβ cosecβ secβ sinβ cosβ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on Right side pivot of this link A point obtained by intersection on extending adjoining links Left side pivot of this link Can’t occur Right side pivot of this link A point obtained by intersection on extending adjoining links Left side pivot of this link Can’t occur ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical) cosα = c/b cotα = c/2b tanα = c/2b sinα = b/c cosα = c/b cotα = c/2b tanα = c/2b sinα = b/c ANSWER DOWNLOAD EXAMIANS APP
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