Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) πd.t.τu π/4 × d².τu π/4 × d² × tτu t.τu πd.t.τu π/4 × d².τu π/4 × d² × tτu t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design Cast iron pipes are mainly used In pressure lubrication systems on prime movers In water and sewage systems All of these For conveying steam In pressure lubrication systems on prime movers In water and sewage systems All of these For conveying steam ANSWER DOWNLOAD EXAMIANS APP
Machine Design A backing ring is used inside the pipe joint when making a Butt weld Socket weld Sleeve weld Fillet weld Butt weld Socket weld Sleeve weld Fillet weld ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole) 2 d 1.5 d 1 d 2.5 d 2 d 1.5 d 1 d 2.5 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A woodruff key is Fitted in pairs at right angles A tapered key with head at one end All of these Capable of tilting in a recess milled out in the shaft Fitted in pairs at right angles A tapered key with head at one end All of these Capable of tilting in a recess milled out in the shaft ANSWER DOWNLOAD EXAMIANS APP
Machine Design Form coefficient of spring is Load required to produce unit deflection Ratio of coil diameter to wire diameter Concerned with strength of wire of spring Its capability of storing energy Load required to produce unit deflection Ratio of coil diameter to wire diameter Concerned with strength of wire of spring Its capability of storing energy ANSWER DOWNLOAD EXAMIANS APP
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