Machine Design When two non-intersecting and non-coplanar shafts are connected by gears, the arrangement is known as Bevel gearing Helical gearing Spiral gearing Spur gearing Bevel gearing Helical gearing Spiral gearing Spur gearing 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/2 45° - φ 90° - φ 45° + φ/2 45° - φ/2 45° - φ 90° - φ 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring) (8WD/ πd3) × K (2WD/ πd3) × K (WD/ πd3) × K (4WD/ πd3) × K (8WD/ πd3) × K (2WD/ πd3) × K (WD/ πd3) × K (4WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
Machine Design If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to 1.25 × diameter of bolt 0.75 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt 1.25 × diameter of bolt 0.75 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following screw thread is adopted for power transmission in either direction? Buttress threads Square threads Acme threads Multiple threads Buttress threads Square threads Acme threads Multiple threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by the belt drive can be increased by Dressing the belt to increase the coefficient of friction Increasing the initial tension in the belt Increasing wrap angle by using idler pulley All of these Dressing the belt to increase the coefficient of friction Increasing the initial tension in the belt Increasing wrap angle by using idler pulley All of these ANSWER DOWNLOAD EXAMIANS APP
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