Theory of Machine When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke. 2θ θ θ/2 4θ 2θ θ θ/2 4θ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations. None of these Less than More than Same as None of these Less than More than Same as 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) cosφ]/2 [(r² + R²) sinφ]/2 [(r² + R²) cosφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) sinφ]/2 [(r² + R²) cosφ]/2 [(r + R) sinφ]/2 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. A convex flank is always in contact with concave flank. The variation in centre distance of shafts increases radial force. The interference is inherently absent. The pressure angle is constant throughout the teeth engagement. A convex flank is always in contact with concave flank. The variation in centre distance of shafts increases radial force. The interference is inherently absent. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to double the period of a simple pendulum, the length of the string should be Halved None of these Quadrupled Doubled Halved None of these Quadrupled Doubled ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft) ω (r₁ + r₂) cosθ cosec2θ ω (r₁ + r₂) sinθ sec2θ ω (r₁ r₂) cosθ ω (r₁ r₂) sinθ ω (r₁ + r₂) cosθ cosec2θ ω (r₁ + r₂) sinθ sec2θ ω (r₁ r₂) cosθ ω (r₁ r₂) sinθ ANSWER DOWNLOAD EXAMIANS APP
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