Theory of Machine The velocity of a body moving with simple harmonic motion is __________ at the mean position. Zero Minimum Maximum None of these Zero Minimum Maximum None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke (θ) is equal to 270° and 360° 90° and 180° 0° and 90° 135° and 315° 270° and 360° 90° and 180° 0° and 90° 135° and 315° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to reciprocating masses Varies in direction but constant in magnitude Varies in magnitude and direction both Constant in magnitude and direction both Varies in magnitude but constant in direction Varies in direction but constant in magnitude Varies in magnitude and direction both Constant in magnitude and direction both Varies in magnitude but constant in direction 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 Effects of unbalances are directly proportional to the speed Unbalanced forces are not dangerous at higher speeds Unbalanced couples are caused only at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced forces are not dangerous at higher speeds Unbalanced couples are caused only at higher speeds Effects of unbalances are proportional to the square of the speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which gear is used for connecting two coplanar and intersecting shafts? None of these Bevel gear Helical gear Spur gear None of these Bevel gear Helical gear Spur gear ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have two elements that Are held together Have surface contact Permit relative motion Have line contact Are held together Have surface contact Permit relative motion Have line contact ANSWER DOWNLOAD EXAMIANS APP
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