Engineering Mechanics A screw jack used for lifting the loads is A non-reversible machine A reversible machine None of these An ideal machine A non-reversible machine A reversible machine None of these An ideal machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as Coplanar concurrent forces Unlike parallel forces Coplanar non-concurrent forces Like parallel forces Coplanar concurrent forces Unlike parallel forces Coplanar non-concurrent forces Like parallel forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by 2P cotθ/2 2P tanθ/2 2P cosθ/2 2P sinθ/2 2P cotθ/2 2P tanθ/2 2P cosθ/2 2P sinθ/2 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. More than None of these Less than Equal to More than None of these Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A ladder is resting on a smooth ground and leaning against a rough vertical wall. The force of friction will act Towards the wall at its upper end Downward at its upper end Upward at its upper end Away from the wall at its upper end Towards the wall at its upper end Downward at its upper end Upward at its upper end Away from the wall at its upper end ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of 0.134 r r/3 r/2 r/A 0.134 r r/3 r/2 r/A ANSWER DOWNLOAD EXAMIANS APP
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