Engineering Mechanics An ideal machine is one whose efficiency is 1 Between 60 and 70 % Between 70 and 80% Between 80 and 90% 1 Between 60 and 70 % Between 70 and 80% Between 80 and 90% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be r/2 3r/2 r/A 2r/3 r/2 3r/2 r/A 2r/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys. Second Third First None of these Second Third First None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is mr²/2 2mr²/3 mr² 2mr²/5 mr²/2 2mr²/3 mr² 2mr²/5 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is D/(d₁ + d₂) 2D/(d₁ + d₂) 2D/(d₁ - d₂) D/(d₁ - d₂) D/(d₁ + d₂) 2D/(d₁ + d₂) 2D/(d₁ - d₂) D/(d₁ - d₂) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are None of these 20 N and 5 N 15 N and 15 N 15 N and 5 N None of these 20 N and 5 N 15 N and 15 N 15 N and 5 N ANSWER DOWNLOAD EXAMIANS APP
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