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MCQs: Principal stress of 30 Mpa and -70 Mpa acts on a material which has elastic limit stress in simple tension and compression as 60 Mpa and 200 Mpa respectively. Specify the reason for failure of the material assuming maximum principle stress theory.
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A circular bar is subjected to an axial force and shear force, the difference between two principle stresses is 120 Mpa. Based on maximum shear stress theory what is the factor of safety, if elastic limit of the bar is 300 Mpa?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: For designing ductile materials, which of the following theories is/are used?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Shear stress energy theory is called as ______
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Which gear is used if the axes of two shafts are neither intersecting nor parallel?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Spiral gears are used only if the axes of two shafts are non-intersecting, non-parallel and __________.
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: In which of the following processes, tooth ends are made thinner?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What are the advantages of smaller pressure angles?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: In force analysis of spur gears which component of force assists the rotation on driven gear?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A helical gear has normal module of 6 mm. What is the transverse module if helix angle is 25°?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What is the axial pitch for helical gears if helix angle is 25° and normal module is 7?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: Which of the following formulae of velocity factor (K) is considered if helical gears of medium accuracy are manufactured by hobbing process followed by shaving?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What is the pitch cone distance of bevel gear, if pitch circle diameter of bevel pinion and gear is 20 and 30 respectively?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A pair of straight bevel gears consists of 16 pinion teeth and 42 gear teeth. What are the pitch cone angles of pinion and gear? 67.60° & 32.4°?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What is the frictional torque acting on a cylindrical roller bearing of 50 mm diameter which is subjected to radial load of 30 kN and has coefficient of friction 0.0011?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A cylindrical roller bearing is subjected to frictional torque of 500 N-mm. What is the approximate power loss if the shaft rotates at 1500 r.p.m?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: The expected rating life of roller bearings rotating at 1000 r.p.m. is 30000 hours and equivalent dynamic load of 4000 N acts on it. What is the basic dynamic capacity of the bearing?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: What is the effect of large diametral quotient on worm and worm wheel?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A standard worm gear pair is designated as 4/40/10/8, what does number 10 in it indicate?
Category: Mechanical Engineering Questions, Published by: teswesm
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MCQs: A worm gear pair is designated as 1/30/10/8. What is the face width of the worm gear?
Category: Mechanical Engineering Questions, Published by: teswesm
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