Machine Design The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is Larger Smaller Equal Larger/smaller depending on diameter of spring coil Larger Smaller Equal Larger/smaller depending on diameter of spring coil ANSWER DOWNLOAD EXAMIANS APP
Machine Design A spring is used to Apply forces Store energy Measure forces All of these Apply forces Store energy Measure forces All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Cap screws are Provided with detachable caps Used to prevent relative motion between parts Similar to small size tap bolts except that a greater variety of shapes of heads are available Slotted for a screw driver and generally used with a nut Provided with detachable caps Used to prevent relative motion between parts Similar to small size tap bolts except that a greater variety of shapes of heads are available Slotted for a screw driver and generally used with a nut ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians) P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value? Maximum distortion energy theory Maximum principal stress theory Maximum shear stress theory Maximum strain energy theory Maximum distortion energy theory Maximum principal stress theory Maximum shear stress theory Maximum strain energy theory ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 2.8 3 3.5 2.5 2.8 3 3.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
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