Machine Design In composite or reverse laid ropes Direction of twist of wires in strands is opposite to the direction of twist of strands Wires are not twisted Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires and strands are same Direction of twist of wires in strands is opposite to the direction of twist of strands Wires are not twisted Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires and strands are same ANSWER DOWNLOAD EXAMIANS APP
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 Shaft B is better than shaft A Shaft A is better than shaft B None of these Both the shafts are equally good Shaft B is better than shaft A Shaft A is better than shaft B None of these Both the shafts are equally good ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shear plane in case of bolts should Be across threaded portion of shank Be normal to threaded portion of shank Be parallel to axis of bolt Never be across the threaded portion Be across threaded portion of shank Be normal to threaded portion of shank Be parallel to axis of bolt Never be across the threaded portion ANSWER DOWNLOAD EXAMIANS APP
Machine Design If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by N/Zp Z/pN p/ZN ZN/p N/Zp Z/pN p/ZN ZN/p ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be a self locking screw, if its efficiency is Less than 50% Equal to 50% None of these More than 50% Less than 50% Equal to 50% None of these More than 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ are equal to 6/(6 + v). 12.5 m/s 15 m/s 20 m/s 10 m/s 12.5 m/s 15 m/s 20 m/s 10 m/s ANSWER DOWNLOAD EXAMIANS APP
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