Machine Design When screw threads are to be used in a situation where power is being transmitted in one direction only, then the screw threads suitable for this will be Acme threads Knuckle threads Square threads Buttress threads Acme threads Knuckle threads Square threads Buttress threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt speed increases Power transmitted increases Power transmitted remains the same Power transmitted decreases Power transmitted increases to a maximum value and then decreases Power transmitted increases Power transmitted remains the same Power transmitted decreases Power transmitted increases to a maximum value and then decreases ANSWER DOWNLOAD EXAMIANS APP
Machine Design When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring) (WD/ πd3) × K (2WD/ πd3) × K (8WD/ πd3) × K (4WD/ πd3) × K (WD/ πd3) × K (2WD/ πd3) × K (8WD/ πd3) × K (4WD/ πd3) × K ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a marine flange coupling, the pitch circle diameter of bolts is taken as 2 d 1.6 d 2.5 d 1.2 d 2 d 1.6 d 2.5 d 1.2 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Remain same Increases markedly Decreases markedly Depends on heat treatment carried out Remain same Increases markedly Decreases markedly Depends on heat treatment carried out ANSWER DOWNLOAD EXAMIANS APP
Machine Design The algebraic difference between the maximum limit and the basic size is called Upper deviation Lower deviation Mean deviation Actual deviation Upper deviation Lower deviation Mean deviation Actual deviation ANSWER DOWNLOAD EXAMIANS APP
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