Machine Design Screws used for power transmission should have Very fine threads Strong teeth Low efficiency High efficiency Very fine threads Strong teeth Low efficiency High efficiency ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to maximum normal stress theory, the maximum normal stress in the shaft is √(σ² × 4τ²) σ + √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] (1/2) × √(σ² × 4τ²) √(σ² × 4τ²) σ + √(σ² × 4τ²) (1/2) × [σ + √(σ² × 4τ²)] (1/2) × √(σ² × 4τ²) ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the speed of belt increases, The power transmitted will decrease The coefficient of friction between the belt and pulley decreases The power transmitted will increase The coefficient of friction between the belt and pulley increases The power transmitted will decrease The coefficient of friction between the belt and pulley decreases The power transmitted will increase The coefficient of friction between the belt and pulley increases ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a riveted joint is equal to Pt /P Ps /P Least of Pt, Ps and Pc/P Pc /P Pt /P Ps /P Least of Pt, Ps and Pc/P Pc /P ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two helical springs of equal lengths are arranged to form a cluster spring, then Load taken by each spring will be half the total load Only A is correct Shear stress in each spring will be equal Both A and B is correct Load taken by each spring will be half the total load Only A is correct Shear stress in each spring will be equal Both A and B is correct ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called Fluctuating stress Alternating stress Yield stress Repeated stress Fluctuating stress Alternating stress Yield stress Repeated stress ANSWER DOWNLOAD EXAMIANS APP
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