Elements Of Mechanical Engineering Quiz!
(181).jpg "Elements Of Mechanical Engineering Quiz! - Quiz")
.
- 1.Forces are called concurrent when their lines of action meet in:
- A.
One point
- B.
Two points
- C.
Plane
- D.
Perpendicular planes
- 2.A force acting on a body may:
- A.
introduce internal stresses
- B.
Balance the other forces acting on it
- C.
Retard its motion
- D.
All the above
- 3.Effect of a force on a body depends upon:
- A.
Magnitude
- B.
Direction
- C.
Position or line of action
- D.
All of the above
- 4.If a number of forces act simultaneously on a particle, it is possible:
- A.
Not a replace them by a single force
- B.
to replace them by a single force
- C.
to replace them by a single force through C.G.
- D.
To replace them by a couple
- 5.The unit of work or energy in S.I. units.
- A.
Newton
- B.
pascal
- C.
Kilogram meter
- D.
Joule.
- 6.A force is completely defined when we specify:
- A.
Magnitude
- B.
direction
- C.
Point of application
- D.
all of the above
- 7.Which is the correct statement about the law of polygon of forces?
- A.
If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
- B.
if any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium
- C.
if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
- D.
if a polygon representing forces acting at a point is closed then forces are in equilibrium
- 8.Forces are called coplanar when all of them acting on body lie in:
- A.
perpendicular planes
- B.
One plane
- C.
One point
- D.
Similar planes
- 9.The unit of force in S.I. units is:
- A.
kilogram
- B.
Newton
- C.
Watt
- D.
Dyne
- 10.Lami's theorem is applicable for:
- A.
3 forces in any plane
- B.
3 forces at different plane
- C.
3 forces which are coplanar
- D.
3 forces which are concurrent and coplanar
- 11.The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of:
- A.
Resolution of forces
- B.
Balance of force
- C.
Dependence of forces
- D.
Independence of forces
- 12.According to law of triangle of forces:
- A.
If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
- B.
Three forces acting at a point can be represented by a triangle, each side being proportional to force
- C.
If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
- D.
three forces acting at a point will be in equilibrium
- 13.If two forces of magnitude P and 2P act at an angle 60°, their resultant will be:
- A.
2.65P
- B.
3P
- C.
2.59P
- D.
2.44P
- 14.Which of the following is not a scalar quantity?
- A.
Acceleration
- B.
Density
- C.
Time
- D.
Mass
- 15.The weight of a body is due to:
- A.
Gravitational force of attraction towards the center of the earth
- B.
Force of attraction experienced by particles
- C.
Gravitational pull exerted by the earth
- D.
Forces experienced by body in atmosphere
- 16.
The figure shows a particular position of 200 mm connecting rod AB and 80 mm long crank BC. At this position, the connecting rod of the engine experience a force of 3000 N on the crank pin at B. Find its horizontal component.- A.
2814.2 N
- B.
1039.2 N
- C.
507.1 N
- D.
568 N
- 17.
The figure shows a particular position of 200 mm connecting rod AB and 80 mm long crank BC. At this position, the connecting rod of the engine experience a force of 3000 N on the crank pin at B. Find its vertical component.
- A.
2814.2 N
- B.
1039.2 N
- C.
507.1 N
- D.
568 N
- 18.
Determine the tension in cables AB necessary to support the 60-kg cylinder in Figure.
- A.
420 N
- B.
450 N
- C.
457.6 N
- D.
475.6 N
- 19.
Determine the tension in cables BC necessary to support the 60-kg cylinder in Figure.
- A.
420 N
- B.
450 N
- C.
476
- D.
457 N
- 20.
Determine the magnitude of the component force F in the given figure.
- A.
245 lb
- B.
273 lb
- C.
500 lb
- D.
Can't determined
Related Topics
Recent Quizzes
Featured Quizzes
Back to top