Engineering Mechanics If a number of forces are acting at a point, their resultant is given by √[(∑V)2 + (∑H)2] (∑V)2 + (∑H)2 √[(∑V)2 +(∑H)2 +2(∑V)(∑H)] (∑V)2 +(∑H)2 +2(∑V)(∑H) √[(∑V)2 + (∑H)2] (∑V)2 + (∑H)2 √[(∑V)2 +(∑H)2 +2(∑V)(∑H)] (∑V)2 +(∑H)2 +2(∑V)(∑H) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The C.G. of a solid hemisphere lies on the central radius 3r At distance — from the plane base 3r At distance — from the plane base At distance — from the plane base 3r At distance — from the plane base 3r At distance — from the plane base 3r At distance — from the plane base At distance — from the plane base 3r At distance — from the plane base 3r ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics For a self locking machine, the efficiency must be 1 Equal to 50% Less than 50% Greater than 50% 1 Equal to 50% Less than 50% Greater than 50% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The forces, whose lines of action are parallel to each other and act in the same directions, are known as Like parallel forces Coplanar non-concurrent forces Unlike parallel forces Coplanar concurrent forces Like parallel forces Coplanar non-concurrent forces Unlike parallel forces Coplanar concurrent forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load. Less than Equal to None of these More than Less than Equal to None of these More than ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Work done is said to be zero, when Some force acts on a body, but displacement is zero None of these Either (A) or (B) No force acts on a body but some displacement takes place Some force acts on a body, but displacement is zero None of these Either (A) or (B) No force acts on a body but some displacement takes place ANSWER DOWNLOAD EXAMIANS APP
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