MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Determine the smallest force applied at R which creates the same moment about P as by 75N. (There is a presence of screw at P, about which the rotation is being there) |
| A. | 37.5N |
| B. | 112.5N |
| C. | 60N |
| D. | 0NView Answer |
| E. | a) 37.5Nb) 112.5Nc) 60Nd) 0NView Answer |
| Answer» B. 112.5N | |
| 2. |
In the screw collinear forces act, what is a collinear system of forces? |
| A. | The force system having all the forces parallel to each other |
| B. | The force system having all the forces perpendicular to each other |
| C. | The force system having all the forces emerging from a single point |
| D. | Forces cannot form a collinear system of forces, it is not possible |
| Answer» D. Forces cannot form a collinear system of forces, it is not possible | |
| 3. |
Which of the following is correct for a screw being rotated? |
| A. | The couple moment depends on the axis of rotation |
| B. | The couple moment depends directly on the radius vector of forces |
| C. | The couple moment depends only on the distance vector between the forces |
| D. | The couple moment’s direction is given by the left hand rule |
| Answer» D. The couple moment’s direction is given by the left hand rule | |
| 4. |
Which of the following statement for the three force system applied in the screws is true? |
| A. | The moment need not to be seen for the equilibrium, they are always in equilibrium |
| B. | The forces are not always in the equilibrium |
| C. | The forces are always in equilibrium |
| D. | The moments are always in equilibrium |
| Answer» C. The forces are always in equilibrium | |
| 5. |
When we apply the equilibrium equations in the free body diagram of the screw, for two force members to be in equilibrium then _________ |
| A. | They both must not be collinear |
| B. | They must be of different magnitude |
| C. | They must be in the same direction |
| D. | They must be in the opposite direction cancelling each other |
| Answer» E. | |
| 6. |
Determine the moment of the force along point P (There is screw present at P, about which the rotation is there). |
| A. | 110Nm |
| B. | 112.5Nm |
| C. | 60Nm |
| D. | 0NmView Answer |
| E. | . a) 110Nmb) 112.5Nmc) 60Nmd) 0NmView Answer |
| Answer» C. 60Nm | |
| 7. |
110Nm$ |
| A. | 112.5Nm |
| B. | 60Nm |
| C. | 0Nm |
| Answer» C. 0Nm | |
| 8. |
For equilibrium, the net force acting on the screw is zero. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
If the forces acting on the couple acting on the screw are in the same direction, that is they are not in the opposite direction as always they are, then? |
| A. | The direction of the forces doesn’t determine the moment |
| B. | The couple moment will be maximum |
| C. | The couple is not possible |
| D. | No change occurs |
| Answer» D. No change occurs | |
| 10. |
Which of the following is correct for a screw being rotated? |
| A. | The couple moment depends on the axis of rotation |
| B. | The couple moment depends directly on the radius vector of forces |
| C. | The couple moment depends only on the distance vector between the forces |
| D. | The couple moment’s direction is given by the left hand rule |
| Answer» B. The couple moment depends directly on the radius vector of forces | |
| 11. |
Which_of_the_following_statement_for_the_three_force_system_applied_in_the_screws_is_true? |
| A. | The moment need not to be seen for the equilibrium, they are always in equilibrium |
| B. | The forces are not always in the equilibrium |
| C. | The forces are always in equilibrium |
| D. | The moments are always in equilibrium |
| Answer» D. The moments are always in equilibrium | |
| 12. |
In screws there is an application of two and three force members. The basic difference between the two and the three force members used is ___________ |
| A. | The former is collinear and the latter is parallel |
| B. | The former is parallel and the latter is perpendicular |
| C. | The former is perpendicular and the latter is collinear |
| D. | The former is acting on two points in the body while the latter is on three points |
| Answer» E. | |
| 13. |
The horizontal distance used in the inverse trigonometry function is called as _____________ |
| A. | Lead |
| B. | Un-lead |
| C. | Major |
| D. | Cut-off |
| Answer» B. Un-lead | |
| 14. |
In the determination of the angle of the screw, the ratio kept in the inverse tangent function is the ratio of ________ |
| A. | Vertical and Horizontal distance of the screw |
| B. | Horizontal and Vertical distance of the screw |
| C. | Vertical and Linear distance of the screw |
| D. | Linear and Horizontal distance of the screw |
| Answer» B. Horizontal and Vertical distance of the screw | |
| 15. |
The angle of the threading in the screw is determined by which of the following trigonometric function? |
| A. | Tangent Inverse |
| B. | Sine |
| C. | Cosine |
| D. | Secant |
| Answer» B. Sine | |
| 16. |
Why are square threaded screws are used in the machines? |
| A. | Large forces act along the axis of the screws |
| B. | Small forces act along the axis of the screws |
| C. | Large forces act perpendicular the axis of the screws |
| D. | Small forces act perpendicular the axis of the screws |
| Answer» B. Small forces act along the axis of the screws | |
| 17. |
Which type of the screws are used in the machines? |
| A. | Square-threaded |
| B. | Round-threaded |
| C. | Helical-threaded |
| D. | Rectangle-threaded |
| Answer» B. Round-threaded | |
| 18. |
In general cases the screws are used as __________ |
| A. | Fasteners |
| B. | Main components |
| C. | Simpler |
| D. | Upstreamers |
| Answer» B. Main components | |