Machine Design Buttress threads are usually found on Railway carriage couplings Screw cutting lathes Spindles of bench vices Feed mechanisms Railway carriage couplings Screw cutting lathes Spindles of bench vices Feed mechanisms ANSWER DOWNLOAD EXAMIANS APP
Machine Design Wire ropes as compared to cotton ropes Can withstand shock loads Offer silent operation All of these Are lighter in weight Can withstand shock loads Offer silent operation All of these Are lighter in weight ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bearings of medium series have capacity __________ over the light series. 10 to 20% 30 to 40% 40 to 50% 20 to 30% 10 to 20% 30 to 40% 40 to 50% 20 to 30% ANSWER DOWNLOAD EXAMIANS APP
Machine Design A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress) σ [1 + (3a/b)] σ [1 + (2a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (3a/b)] σ [1 + (2a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + cosφ)/ (1 - sinφ) (1 + sinφ)/ (1 - sinφ) (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + cosφ)/ (1 - sinφ) (1 + sinφ)/ (1 - sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design A feather key is generally Loose in both shaft and hub Loose in shaft and tight in hub Tight in shaft and loose in hub Tight in both shaft and hub Loose in both shaft and hub Loose in shaft and tight in hub Tight in shaft and loose in hub Tight in both shaft and hub ANSWER DOWNLOAD EXAMIANS APP
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