Mechanical Engineering
GATE ME concept:friction PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–13 of 13. Imported answers require independent review unless marked reviewed.
Question 5
Open questionMEMCQ1 markNeeds review
An attempt is made to pull a roller of weight
over a curb (step) by applying a horizontal force
as shown in the figure. 
The coefficient of static friction between the roller and the ground (including the edge of the step) is
. Identify the correct free body diagram (FBD) of the roller when the roller is just about to climb over the step.Your answerChoose one option.
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Open questionMENAT1 markNeeds review
A block of mass 10 kg rests on a horizontal floor. The acceleration due to gravity is 9.81 m/s². The coefficient of static friction between the floor and the block is 0.2. A horizontal force of 10 N is applied on the block as shown in the figure. The magnitude of force of friction (in N) on the block is ______
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 41
Open questionMENAT2 marksNeeds review
A slider crank mechanism is shown in the figure. At some instant, the crank angle is 45° and a force of 40 N is acting towards the left on the slider. The length of the crank is 30 mm and the connecting rod is 70 mm. Ignoring the effect of gravity, friction and inertial forces, the magnitude of the crankshaft torque (in Nm) needed to keep the mechanism in equilibrium is __________ (correct to two decimal places).
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