MCQOPTIONS
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MCQOPTIONS
This section includes 108 Mcqs, each offering curated multiple-choice questions to sharpen your Control Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A rectangle in a DFD represents |
| A. | a process |
| B. | a data store |
| C. | an external entity |
| D. | an input unit |
| Answer» D. an input unit | |
| 2. |
A data dictionary is usually developed |
| A. | At requirements specification phase |
| B. | During feasibility analysis |
| C. | When DFD is developed |
| D. | When a datadase is designed |
| Answer» D. When a datadase is designed | |
| 3. |
Advantages of system flowcharts …………………. |
| A. | Effective communication |
| B. | Effective analysis |
| C. | Queasier group or relationships |
| D. | All a, b and c |
| Answer» E. | |
| 4. |
The data Flow Diagram is the basic component of …………… system |
| A. | Conceptual |
| B. | Logical |
| C. | Physical |
| D. | None of the above |
| Answer» B. Logical | |
| 5. |
A concise code is necessarily |
| A. | Precise |
| B. | Meaningful |
| C. | Comprehensive |
| D. | Difficult |
| Answer» B. Meaningful | |
| 6. |
Data cannot flow between two data stores because |
| A. | it is not allowed in DFD |
| B. | a data store is a passive repository of data |
| C. | data can get corrupted |
| D. | they will get merged |
| Answer» E. | |
| 7. |
A data dictionary is useful as(i) it is a documentation aid(ii) it assists in designing input forms(iii) it contains all data in an application including temporary data used in processes(iv) it is a good idea in system design |
| A. | (i) and (ii) |
| B. | (i) and (iv) |
| C. | (i),(ii) and (iii) |
| D. | (i) and (iv) |
| Answer» D. (i) and (iv) | |
| 8. |
…………….. refers to the collection of information pertinent to systems Project. |
| A. | Data transfer |
| B. | Data gathering |
| C. | Data Embedding |
| D. | Data Request |
| Answer» C. Data Embedding | |
| 9. |
In significant codes some or all parts of the code |
| A. | are meaningful |
| B. | are usable |
| C. | are significant |
| D. | represent values |
| Answer» E. | |
| 10. |
A data dictionary has consolidated list of data contained in(i) dataflows (ii) data stores(iii) data outputs (iv) processes |
| A. | (i) and (iii) |
| B. | (i) and (ii) |
| C. | (ii) and (iv) |
| D. | (i) and (iv) |
| Answer» C. (ii) and (iv) | |
| 11. |
It specifies the structure of an organization |
| A. | Organization chart |
| B. | DFD |
| C. | Flowchart |
| D. | PO chart |
| Answer» B. DFD | |
| 12. |
A data element in a data dictionary may have |
| A. | only integer value |
| B. | no value |
| C. | only real value |
| D. | only decimal value |
| Answer» C. only real value | |
| 13. |
A data dictionary has information about |
| A. | every data element in a data flow |
| B. | only key data element in a data flow |
| C. | only important data elements in a data flow |
| D. | only numeric data elements in a data flow |
| Answer» B. only key data element in a data flow | |
| 14. |
By metadata we mean |
| A. | very large data |
| B. | data about data |
| C. | data dictionary |
| D. | meaningful data |
| Answer» C. data dictionary | |
| 15. |
………………….. means coordinated effort, to communicate the information of the system written form. |
| A. | System documentation |
| B. | Resource required |
| C. | Development schedule |
| D. | User Document |
| Answer» B. Resource required | |
| 16. |
…………… can be defined as data that has been processed into a form that is meaningful to the recipient and is of real or perceive value in current or prospective decisions. |
| A. | System |
| B. | Information |
| C. | Technology |
| D. | Service |
| Answer» C. Technology | |
| 17. |
In a DFD external entities are represented by a |
| A. | Rectangle |
| B. | Ellipse |
| C. | Diamond shaped box |
| D. | Circle |
| Answer» B. Ellipse | |
| 18. |
A data flow can |
| A. | Only emanate from an external entity |
| B. | Only terminate in an external entity |
| C. | May emanate and terminate in an external entity |
| D. | May either emanate or terminate in an external entity but not both |
| Answer» D. May either emanate or terminate in an external entity but not both | |
| 19. |
Which of the following statements is true ? |
| A. | computers are essential for Systems Analysis |
| B. | flow of information in an organization is always vertical |
| C. | a system flowchart is not a part of a program documentation package |
| D. | a parallel run involves two different terminals accessing a common database |
| Answer» D. a parallel run involves two different terminals accessing a common database | |
| 20. |
Which of the following statements is not true ? |
| A. | 4GLs are used for application proto typing |
| B. | The Real-Time system is a particular case of a on-line-system |
| C. | A structured chart is a sequential representation of program design |
| D. | Batch totals are not incorporated while designing real-time applications |
| Answer» D. Batch totals are not incorporated while designing real-time applications | |
| 21. |
A discrete, detailed task required to complete the response to an event is known as a(n): |
| A. | function |
| B. | elementary process |
| C. | event |
| D. | internal process |
| Answer» C. event | |
| 22. |
The act of breaking a system into its component subsystems, processes, and sub-processes is known as: |
| A. | composition |
| B. | generalization |
| C. | normalization |
| D. | none of the above |
| Answer» E. | |
| 23. |
In a data flow diagram, a data flow that consist of other data flows is a(an): |
| A. | control flow |
| B. | compound flow |
| C. | composite flow |
| D. | complex flow |
| Answer» D. complex flow | |
| 24. |
A process model used to document the scope of a system is |
| A. | top-level data flow diagram |
| B. | environmental model |
| C. | decomposition diagram |
| D. | control flow diagram |
| Answer» C. decomposition diagram | |
| 25. |
A data flow indicating that all or parts of a single data flow are routed to different destinations is a(n): |
| A. | diverging data flow |
| B. | converging data flow |
| C. | routing data flow |
| D. | partial data flow |
| Answer» B. converging data flow | |
| 26. |
A data flow diagram: |
| A. | is a process model |
| B. | depicts the flow of data through a system |
| C. | uses rounded rectangles to represent processes |
| D. | all of the above |
| Answer» E. | |
| 27. |
Which of the following is an example of a logical process? |
| A. | determining availability of an ordered product |
| B. | computing grade point average |
| C. | generating a report |
| D. | all of the above |
| Answer» E. | |
| 28. |
A process that has inputs but no outputs is a(an): |
| A. | gray hole |
| B. | elementary process |
| C. | basic process |
| D. | none of the above |
| Answer» E. | |
| 29. |
A logical unit of work that must be completed as a whole is known as a(n): |
| A. | elementary process |
| B. | primitive process |
| C. | trigger |
| D. | none of the above |
| Answer» E. | |
| 30. |
Which of the following is (are) common errors on data flow diagrams? |
| A. | a process with no inputs |
| B. | a data flow from an external agent to a process |
| C. | a data flow from an external agent to a data store |
| D. | both (a) and (c) |
| Answer» E. | |
| 31. |
A technique that organizes data into groups to form non-redundant, stable, flexible, and adaptive entities is: |
| A. | optimization |
| B. | normalization |
| C. | randomization |
| D. | requirements analysis |
| Answer» C. randomization | |
| 32. |
Any candidate key that is not selected to become the primary key is called: |
| A. | the domain key |
| B. | the entity key |
| C. | the concatenated key |
| D. | none of the above |
| Answer» E. | |
| 33. |
An attribute that consists of other attributes is called: |
| A. | extended attribute |
| B. | element |
| C. | compound attribute |
| D. | simple attribute |
| Answer» D. simple attribute | |
| 34. |
An entity is in the second normal form if: |
| A. | values of nonprimary key attributes are dependent on the full primary key |
| B. | all values of primary keys are independent of the nonprimary key attributes |
| C. | you add additional nonkey attributes that are dependent on other nonkey attributes |
| D. | values of nonprimary key attributes are not dependent on any other nonprimary key attributes |
| Answer» B. all values of primary keys are independent of the nonprimary key attributes | |
| 35. |
An attribute whose value can be calculated form other attributes is called: |
| A. | dependent attribute |
| B. | compound attribute |
| C. | simple attribute |
| D. | derived attribute |
| Answer» E. | |
| 36. |
An entity whose instances may inherit common attributes from its entity supertype is called: |
| A. | generalization entity |
| B. | non-specific entity |
| C. | recursive entity |
| D. | none of the above |
| Answer» E. | |
| 37. |
A relationship that exists between the instances of the same entity is called: |
| A. | reflexive |
| B. | associative |
| C. | identifying |
| D. | recursive |
| Answer» E. | |
| 38. |
Every faculty has one or more offices. This is an example of: |
| A. | domain |
| B. | cardinality |
| C. | relationship |
| D. | attribute |
| Answer» C. relationship | |
| 39. |
In the relationship between course and faculty, the course entity would be |
| A. | nonspecific |
| B. | supertype |
| C. | the child |
| D. | the parent |
| Answer» D. the parent | |
| 40. |
Which of the following is NOT a category of entities? |
| A. | concept |
| B. | place |
| C. | object |
| D. | relationship |
| Answer» E. | |
| 41. |
For all-pass systems: |
| A. | Poles must lie on right of the s-plane |
| B. | Zeroes must lie on the left of s-plane |
| C. | Poles must lie on the left and zeroes on the mirror image of the pole can be on the right |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 42. |
Minimum phase systems have unique relationship between its phase and magnitude curves |
| A. | True |
| B. | False |
| Answer» B. False | |
| 43. |
Which one of the following statements is correct? Nichol's chart is useful for the detailed study analysis of: |
| A. | Closed loop frequency response |
| B. | Open loop frequency response |
| C. | Close loop and open loop frequency responses |
| D. | None of the above |
| Answer» B. Open loop frequency response | |
| 44. |
In a bode magnitude plot, which one of the following slopes would be exhibited at high frequencies by a 4th order all-pole system? |
| A. | -80dB/decade |
| B. | -40 dB/decade |
| C. | 40 dB/decade |
| D. | 80 dB/decade |
| Answer» B. -40 dB/decade | |
| 45. |
Consider the following statements:Nichol's chart gives information about. i. Closed loop frequency response. ii. The value of the peak magnitude of the closed loop frequency response Mp. iii. The frequency at which Mp occurs.Which of the above statements are correct? |
| A. | 2 and 3 |
| B. | 1 and 2 |
| C. | 1 and 3 |
| D. | 1,2 and 3 |
| Answer» E. | |
| 46. |
What is the value of M for the constant M circle represented by the equation 8x2+18x+8y2+9=0? |
| A. | 0.5 |
| B. | 2 |
| C. | 3 |
| D. | 8 |
| Answer» D. 8 | |
| 47. |
Assertion (A): The phase angle plot in Bode diagram is not affected by the variation in the gain of the system.Reason(R): The variation in the gain of the system has no effect on the phase margin of the system. |
| A. | Both A and R are true but R is correct explanation of A |
| B. | Both A and R are true but R is correct explanation of A |
| C. | A is true but R is false |
| D. | A is false but R is true |
| Answer» D. A is false but R is true | |
| 48. |
The phase angle of the system G(s) =s+5/s2+4s+9;varies between |
| A. | 0° and 90° |
| B. | 0° and -90° |
| C. | 0° and -180° |
| D. | -90° and -180° |
| Answer» C. 0° and -180° | |
| 49. |
For a type one system, the steady - state error due to step input is equal to |
| A. | Infinite |
| B. | Zero |
| C. | 0.25 |
| D. | 0.5 |
| Answer» C. 0.25 | |
| 50. |
For the transfer functionG(s) H(s) = 1 / s(s+1) (s+0.5), the phase cross-over frequency is |
| A. | 0.5 rad/sec |
| B. | 0.707 rad/sec |
| C. | 1.732 rad/sec |
| D. | 2 rad/sec |
| Answer» C. 1.732 rad/sec | |