Engineering Mechanics The maximum efficiency of a screw jack is (1 - tanφ)/(1 + tanφ) (1 + sinφ)/(1 - sinφ) (1 + tanφ)/(1 - tanφ) (1 - sinφ)/(1 + sinφ) (1 - tanφ)/(1 + tanφ) (1 + sinφ)/(1 - sinφ) (1 + tanφ)/(1 - tanφ) (1 - sinφ)/(1 + sinφ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The friction experienced by a body, when at rest, is known as Static friction Dynamic friction Coefficient of friction Limiting friction Static friction Dynamic friction Coefficient of friction Limiting friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The forces which do not meet at one point and their lines of action do not lie on the same plane are known as Coplanar non-concurrent forces Non-coplanar concurrent forces Coplanar concurrent forces None of these Coplanar non-concurrent forces Non-coplanar concurrent forces Coplanar concurrent forces None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is 30° 120° 90° 60° 30° 120° 90° 60° ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio for the third system of pulleys is n² 2n 2n - 1 n n² 2n 2n - 1 n ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a first system of pulleys with 4 pulleys is 8 16 20 4 8 16 20 4 ANSWER DOWNLOAD EXAMIANS APP
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