Machine Design The steel pulleys are __________ in weight than cast iron pulleys of the same capacity. Heavier None of these Moderate Lighter Heavier None of these Moderate Lighter ANSWER DOWNLOAD EXAMIANS APP
Machine Design A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is 5 N-m 15 N-m 7 N-m 10 N-m 5 N-m 15 N-m 7 N-m 10 N-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt of uniform strength can be developed by Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the core diameter smaller than the diameter of the unthreaded portion Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt None of these Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the core diameter smaller than the diameter of the unthreaded portion Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt None of these 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) π/4 × d² × tτu π/4 × d².τu t.τu πd.t.τu π/4 × d² × tτu π/4 × d².τu t.τu πd.t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 - sinφ)/ (1 + sinφ) (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 - sinφ)/ (1 + sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Idler pulley is used for For applying tension Increasing velocity ratio Changing the direction of motion of belt All of these For applying tension Increasing velocity ratio Changing the direction of motion of belt All of these ANSWER DOWNLOAD EXAMIANS APP
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