Machine Design The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be Same in both cases 3 times more 4 times more 2 times more Same in both cases 3 times more 4 times more 2 times more ANSWER DOWNLOAD EXAMIANS APP
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 t.τu π/4 × d² × tτu π/4 × d².τu πd.t.τu t.τu π/4 × d² × tτu π/4 × d².τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design A hollow saddle key is Provided in pairs at right angles and each key is to withstand torsion in one direction only A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft A taper key which fits in a key way of the hub and is flat on the shaft A taper key which fits half in the key way of hub and half in the key way of shaft Provided in pairs at right angles and each key is to withstand torsion in one direction only A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft A taper key which fits in a key way of the hub and is flat on the shaft A taper key which fits half in the key way of hub and half in the key way of shaft 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 cosecφ T sec³φ T sec²φ T/sec³φ T cosecφ T sec³φ T sec²φ T/sec³φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Cold working Has no influence on fatigue strength Decreases the fatigue strength Alone has no influence on fatigue strength Increases the fatigue strength Has no influence on fatigue strength Decreases the fatigue strength Alone has no influence on fatigue strength Increases the fatigue strength ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a key, it is assumed that the distribution of forces along the length of key Varies linearly Varies exponentially, being less at the torque-input end Is uniform throughout Varies exponentially, being more at the torque-input end Varies linearly Varies exponentially, being less at the torque-input end Is uniform throughout Varies exponentially, being more at the torque-input end ANSWER DOWNLOAD EXAMIANS APP
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