Machine Design In a flange coupling, the bolts are subjected to None of these Shear stress Compressive stress Tensile stress None of these Shear stress Compressive stress Tensile stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because New and old belts will cause vibrations The new belt will carry more than its share and result in short life Belts are available in sets Only one belt cannot be fitted with other used belts New and old belts will cause vibrations The new belt will carry more than its share and result in short life Belts are available in sets Only one belt cannot be fitted with other used belts ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called Hydrodynamic lubricated bearing Boundary lubricated bearing Hydrostatic lubricated bearing Zero film bearing Hydrodynamic lubricated bearing Boundary lubricated bearing Hydrostatic lubricated bearing Zero film bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians) P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ 90° - φ 45° + φ/2 45° - φ/2 45° - φ 90° - φ 45° + φ/2 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be 4 τ τ 2 τ τ/2 4 τ τ 2 τ τ/2 ANSWER DOWNLOAD EXAMIANS APP
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