Theory of Machine The two elements of a pair are said to form a higher pair, when they Have a surface contact when in motion Have a line or point contact when in motion Permit relative motion Are kept in contact by the action of external forces, when in motion Have a surface contact when in motion Have a line or point contact when in motion Permit relative motion Are kept in contact by the action of external forces, when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following statement is correct for involute gears? The pressure angle is constant throughout the teeth engagement. The interference is inherently absent. A convex flank is always in contact with concave flank. The variation in centre distance of shafts increases radial force. The pressure angle is constant throughout the teeth engagement. The interference is inherently absent. A convex flank is always in contact with concave flank. The variation in centre distance of shafts increases radial force. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A foot step bearing and rotor of a vertical turbine form examples of Completely constrained motion Incompletely constrained motion Successfully constrained motion Partially constrained motion Completely constrained motion Incompletely constrained motion Successfully constrained motion Partially constrained motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a circular arc cam with roller follower, the acceleration in any position of the lift will depend only upon Total lift, total angle of lift, minimum radius of cam and cam speed Total lift, centre of gravity of the cam and cam speed Radius of circular arc, cam speed, location of centre of circular arc and roller diameter Mass of cam follower linkage, spring stiffness and cam speed Total lift, total angle of lift, minimum radius of cam and cam speed Total lift, centre of gravity of the cam and cam speed Radius of circular arc, cam speed, location of centre of circular arc and roller diameter Mass of cam follower linkage, spring stiffness and cam speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then The drive is recommended depending upon the torque transmitted Both open belt drive and crossed belt drive is recommended Crossed belt drive is recommended Open belt drive is recommended The drive is recommended depending upon the torque transmitted Both open belt drive and crossed belt drive is recommended Crossed belt drive is recommended Open belt drive is recommended ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Two pulleys of radii r₁ and r₂ and at distance x apart are connected by means of an open belt drive. The length of the belt is π (r₁ + r₂) + (r₁ + r₂)²/x + 2x π (r₁ + r₂) + (r₁ - r₂)²/x + 2x π (r₁ - r₂) + (r₁ - r₂)²/x + 2x π (r₁ - r₂) + (r₁ + r₂)²/x + 2x π (r₁ + r₂) + (r₁ + r₂)²/x + 2x π (r₁ + r₂) + (r₁ - r₂)²/x + 2x π (r₁ - r₂) + (r₁ - r₂)²/x + 2x π (r₁ - r₂) + (r₁ + r₂)²/x + 2x ANSWER DOWNLOAD EXAMIANS APP
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