Test: Shaft Design - Mechanical Engineering MCQ
15 Questions MCQ Test Design of Machine Elements - Test: Shaft Design
While designing shaft on the basis of torsional rigidity, angle of twist is given by?
According to ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength.
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Does ASME Standard take into consideration shock and fatigue factors?
The layout of a shaft supported on bearings at A & B is shown. Power is supplied by means of a vertical belt on pulley B which is then transmitted to pulley C carrying a horizontal belt. The angle of wrap is 180’ and coefficient of friction is 0.3. Maximum permissible tension in the rope is 3kN. The radius of pulley at B & C is 300mm and 150mm.
Q. Calculate the torque supplied to the shaft.
The layout of a shaft supported on bearings at A & B is shown. Power is supplied by means of a vertical belt on pulley B which is then transmitted to pulley C carrying a horizontal belt. The angle of wrap is 180’ and coefficient of friction is 0.3. Maximum permissible tension in the rope is 3kN. The radius of pulley at B & C is 300mm and 150mm.
Q. Calculate the tension in the rope of pulley C.
The layout of a shaft supported on bearings at A & B is shown. Power is supplied by means of a vertical belt on pulley B which is then transmitted to pulley C carrying a horizontal belt. The angle of wrap is 180’ and coefficient of friction is 0.3. Maximum permissible tension in the rope is 3kN. The radius of pulley at B & C is 300mm and 150mm.
Q. If allowable shear stress in the shaft is 70N/mm² and torsional and bending moments are M=1185000N-mm and m=330000N-mm, find the diameter of the shaft.
The layout of a shaft supported on bearings at A & B is shown. Power is supplied by means of a vertical belt on pulley B which is then transmitted to pulley C carrying a horizontal belt. The angle of wrap is 180’ and coefficient of friction is 0.3. Maximum permissible tension in the rope is 3kN. The radius of pulley at B & C is 300mm and 150mm.
Q. If bending moment on point B in horizontal plate is M and in vertical plane is m, then the net bending moment at point B is?
Calculate the shaft diameter on rigidity basis if torsional moment is 196000N-mm, length of shaft is 1000mm. Permissible angle of twist per meter is 0.5’ and take G=79300N/mm².
If yielding strength=400N/mm², the find the permissible shear stress according to ASME standards.
The stiffness of solid shaft is more than the stiffness of hollow shaft with same weight.
The strength of hollow shaft is more than the strength of solid shaft of same weight.
Flexible shafts have ___ rigidity in torsion making them flexible.
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49 videos|70 docs|77 tests
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49 videos|70 docs|77 tests
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