Machine Design Which of the following statement is correct regarding power screws? If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% Both (A) and (B) The efficiency of a self locking screw can not be more than 50% 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% Both (A) and (B) The efficiency of a self locking screw can not be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following formula is used in designing a connecting rod? Euler's formula Johnson's straight line formula Rankine's formula Johnson's parabolic formula Euler's formula Johnson's straight line formula Rankine's formula Johnson's parabolic formula ANSWER DOWNLOAD EXAMIANS APP
Machine Design The sleeve or muff coupling is designed as a Hollow shaft Thick cylinder Solid shaft Dun cylinder Hollow shaft Thick cylinder Solid shaft Dun cylinder ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ/2 45° + φ/2 45° - φ 90° - φ 45° - φ/2 45° + φ/2 45° - φ 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Buttress threads are usually found on Railway carriage couplings Screw cutting lathes Feed mechanisms Spindles of bench vices Railway carriage couplings Screw cutting lathes Feed mechanisms Spindles of bench vices ANSWER DOWNLOAD EXAMIANS APP
Machine Design A single strap butt joint is always in __________ shear. Single None of these Triple share Double Single None of these Triple share Double ANSWER DOWNLOAD EXAMIANS APP
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