Engineering Mechanics A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is Non-reversible Reversible Ideal None of these Non-reversible Reversible Ideal None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.) IP = IG + Ah2 IP = IG - Ah2 IP = IG / Ah2 IP = Ah2 / IG IP = IG + Ah2 IP = IG - Ah2 IP = IG / Ah2 IP = Ah2 / IG 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. None of these First Second Third None of these First Second Third ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius. 3r/ 8 3r/4π 4r/ 3π 8r/3 3r/ 8 3r/4π 4r/ 3π 8r/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The friction experienced by a body, when at rest, is known as Static friction Coefficient of friction Limiting friction Dynamic friction Static friction Coefficient of friction Limiting friction Dynamic friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A machine having an efficiency less than 50%, is known as Ideal machine Reversible machine Non-reversible machine Neither reversible nor non-reversible machine Ideal machine Reversible machine Non-reversible machine Neither reversible nor non-reversible machine ANSWER DOWNLOAD EXAMIANS APP
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