Theory of Machine When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a Higher pair Lower pair Force-closed pair Self-closed pair Higher pair Lower pair Force-closed pair Self-closed pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is 0° and 90° Both (A) and (B) None of these 180° and 360° 0° and 90° Both (A) and (B) None of these 180° and 360° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The minimum periodic time of a compound pendulum is (1/2π). √(2kG/g) 2π. √(kG/g) 2π. √(2kG/g) (1/2π). √(kG/g) (1/2π). √(2kG/g) 2π. √(kG/g) 2π. √(2kG/g) (1/2π). √(kG/g) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be Under damped Critically damped Without vibrations Over-damped Under damped Critically damped Without vibrations Over-damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of higher pair is Belt, rope and chain drives Gears, cams Ball and roller bearings All of these Belt, rope and chain drives Gears, cams Ball and roller bearings All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle) [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 ANSWER DOWNLOAD EXAMIANS APP
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