Theory of Machine The factional torque for square thread at the mean radius r while raising load W is given by T = W.r tanφ T = W.r tan(φ - α) T = W.r tan(φ + α) T = W.r tanα T = W.r tanφ T = W.r tan(φ - α) T = W.r tan(φ + α) T = W.r tanα ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) (ω₁ + ω₂)r (ω₁ - ω₂)r (ω₁ - ω₂)2r ω₁.ω₂.r (ω₁ + ω₂)r (ω₁ - ω₂)r (ω₁ - ω₂)2r ω₁.ω₂.r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to Minimize the effect of secondary forces Minimize the effect of primary forces To start the locomotive quickly Have perfect balancing Minimize the effect of secondary forces Minimize the effect of primary forces To start the locomotive quickly Have perfect balancing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The height of a Watt's governor (in meters) is equal to (where N = Speed of the arm and ball about the spindle axis) 8.95/N² 895/N² 8950/N² 89.5/N² 8.95/N² 895/N² 8950/N² 89.5/N² ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Efficiency of a screw jack is given by tanα/tan (α - φ) tan (α + φ)/tanα tan (α - φ)/tanα tanα/tan (α +φ) tanα/tan (α - φ) tan (α + φ)/tanα tan (α - φ)/tanα tanα/tan (α +φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions. Same Opposite Perpendicular None of these Same Opposite Perpendicular None of these ANSWER DOWNLOAD EXAMIANS APP
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