Engineering Mechanics Mock Test 10

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Question 1 of 10

1. If the resolved force or the force which you get as the answer after solving the question is negative, then what does this implies?

The force component is not possible

The force is in the reverse direction w.r.t the direction set in the free body diagram

The force is not in the reverse direction w.r.t the direction set in the free body diagram

The force is possible, but in the direction perpendicular to the resultant force

Question 1 of 10

Question 2 of 10

2. We often determine the work done by the couples. A couple moment is developed when _______ of the attached member is prevented.

Subtraction

Translation

Rotation

Addition

Question 2 of 10

Question 3 of 10

3. Determine the vertical force acting in the given figure.

830N

236N

600n

403N

Question 3 of 10

Question 4 of 10

4. Work done is best given by___________

dU = Fdrcosθ

dU = Fdrcotθ

dU = Fdrsinθ

dU = Fdrdθ

Question 4 of 10

Question 5 of 10

5. If five forces are acting on the single particle and having an angle of 72˚ between each and are collinear, then_____________

The net force acting on the body is vertical but net work done is non-zero

The net force acting on the body is zero and the net work done is also zero

The net force acting on the body is at an angle of 45

The net force acting on the body is horizontal

Question 5 of 10

Question 6 of 10

6. Determine the magnitude of the force F = 300j parallel to the direction of AB?

257.1N

155N

175N

200N

Question 6 of 10

Question 7 of 10

7. Virtual Work done is saved in the form of potential energy. It is best given by ___________

δU = Fδrsinθ

δU = Fδrδθ

δU = Fδrcosθ

δU = Fδrcotθ

Question 7 of 10

Question 8 of 10

8. The coefficient of kinetic friction when a body is moving from a height above the ground level to a smaller height is ____________ than coefficient of static friction.

Smaller

Significantly larger

Highly larger

Larger

Question 8 of 10

Question 9 of 10

9. If the resolved force for the stability of equilibrium configuration or the force which you get as the answer after solving the question is negative, then what does this implies?

The force is not in the reverse direction w.r.t the direction set in the free body diagram

The force is in the reverse direction w.r.t the direction set in the free body diagram

The force component is not possible

The force is possible, but in the direction perpendicular to the resultant force

Question 9 of 10

Question 10 of 10

10. Free body diagrams doesn’t play any role in making the calculations on the conditions of the equilibrium of the body when there is the involvement of the potential energy.

True

False

Question 10 of 10