Machine Design Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that None of these Shaft A is better than shaft B Both the shafts are equally good Shaft B is better than shaft A None of these Shaft A is better than shaft B Both the shafts are equally good Shaft B is better than shaft A ANSWER DOWNLOAD EXAMIANS APP
Machine Design In oilness bearings Grease required to be applied after some intervals The oil film is maintained by supplying oil under pressure Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal Grease required to be applied after some intervals The oil film is maintained by supplying oil under pressure Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a multiple V-belt drive, if one of the belts break, then The broken belt and the belt on either side of it, is replaced The entire set of belts is replaced Only the broken belt is replaced The broken belt need not to be replaced The broken belt and the belt on either side of it, is replaced The entire set of belts is replaced Only the broken belt is replaced The broken belt need not to be replaced ANSWER DOWNLOAD EXAMIANS APP
Machine Design If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then formative number of teeth is written as T sec²φ T sec³φ T cosecφ T/sec³φ T sec²φ T sec³φ T cosecφ T/sec³φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as Helix angle None of these Pressure angle Pitch lead angle Helix angle None of these Pressure angle Pitch lead angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be 6 kN/m 12 kN/m 30 kN/m 24 kN/m 6 kN/m 12 kN/m 30 kN/m 24 kN/m ANSWER DOWNLOAD EXAMIANS APP
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