Machine Design The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G = Modulus of rigidity, and n = Number of active coils) Gd⁴/ 8D3n Gd⁴/ 8D²n Gd3/ 8D3n Gd⁴/ 4D3n Gd⁴/ 8D3n Gd⁴/ 8D²n Gd3/ 8D3n Gd⁴/ 4D3n ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a machine member is subjected to torsion, the torsional shear stress set up in the member is Maximum at the centroidal axis and zero at the outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at both the centroidal axis and outer surface of the member Zero at both the centroidal axis and outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at both the centroidal axis and outer surface of the member Zero at both the centroidal axis and outer surface of the member ANSWER DOWNLOAD EXAMIANS APP
Machine Design The gears are termed as medium velocity gears, if their peripheral velocity is 30-50 m/s 3-15 m/s 15-30 m/s 1-3 m/s 30-50 m/s 3-15 m/s 15-30 m/s 1-3 m/s ANSWER DOWNLOAD EXAMIANS APP
Machine Design A localized compressive stress at the area of contact between two members is known as Tensile stress Bending stress Bearing stress Shear stress Tensile stress Bending stress Bearing stress Shear stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design The groove angle of pulleys for V-belt is More than 400 420 to 450 340 to 360 300 to 320 More than 400 420 to 450 340 to 360 300 to 320 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing. Fully Partially None of these Either A or B Fully Partially None of these Either A or B ANSWER DOWNLOAD EXAMIANS APP
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