Theory of Machine When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a Spherical pair Screw pair Sliding pair Turning pair Spherical pair Screw pair Sliding pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke (θ) is equal to 135° and 315° 270° and 360° 0° and 90° 90° and 180° 135° and 315° 270° and 360° 0° and 90° 90° and 180° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from 15°-25° 30°-40° 25°-30° 10°-15° 15°-25° 30°-40° 25°-30° 10°-15° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W tan(φ - α) P = W tan(α + φ) P = W tan(α - φ) P = W cos(α + φ) P = W tan(φ - α) P = W tan(α + φ) P = W tan(α - φ) P = W cos(α + φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The C.G. of a link in any mechanism would experience Both angular and linear accelerations Linear acceleration No acceleration Angular acceleration Both angular and linear accelerations Linear acceleration No acceleration Angular acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For fluctuating loads, well suited bearing is Needle roller bearing Roller bearing Thrust bearing Ball bearing Needle roller bearing Roller bearing Thrust bearing Ball bearing ANSWER DOWNLOAD EXAMIANS APP
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