Theory of Machine In a screw jack, the effort required to lower the load W is given by P = W tan(α + φ) P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Transmission angle is the angle between Output link and fixed link Input link and fixed link Input link and coupler Output link and coupler Output link and fixed link Input link and fixed link Input link and coupler Output link and coupler ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Open pairs are those which have Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Two elements that permit relative motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A kinematic chain requires at least 4 links and 4 turning pairs 5 links and 4 turning pairs 2 links and 3 turning pairs 3 links and 4 turning pairs 4 links and 4 turning pairs 5 links and 4 turning pairs 2 links and 3 turning pairs 3 links and 4 turning pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a reciprocating engine, usually __________ of the reciprocating masses are balanced. Whole Two-third One-half Three-fourth Whole Two-third One-half Three-fourth ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Two pulleys of radii r₁ and r₂ and at distance x apart are connected by means of a cross 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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