Machine Design Which of the following statement is correct regarding power screws? Both (A) and (B) The efficiency of Acme (trapezoidal) thread is less than that of a square thread If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of a self locking screw can not be more than 50% Both (A) and (B) The efficiency of Acme (trapezoidal) thread is less than that of a square thread If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of a self locking screw can not be more than 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that None of these Shaft A is better than shaft B Both the shafts are equally good Shaft B is better than shaft A None of these Shaft A is better than shaft B Both the shafts are equally good Shaft B is better than shaft A ANSWER DOWNLOAD EXAMIANS APP
Machine Design The material commonly used for machine tool bodies is Cast iron Mild steel Brass Aluminium Cast iron Mild steel Brass Aluminium ANSWER DOWNLOAD EXAMIANS APP
Machine Design The suitable material for belt used in flour mill is Leather Canvas or cotton duck Balata gum Rubber Leather Canvas or cotton duck Balata gum Rubber ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the thickness of the boiler shell should not be less than 7 mm 4 mm 6 mm 5 mm 7 mm 4 mm 6 mm 5 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft coupling should Hold the shafts in perfect alignment All of these Be easy to connect or disconnect Transmit full power of the shaft Hold the shafts in perfect alignment All of these Be easy to connect or disconnect Transmit full power of the shaft ANSWER DOWNLOAD EXAMIANS APP
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