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Noun (National open university) Live 2019 POP Exam questions

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    #21
    CIT 844 11 am

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      #22
      Pls help CRS742 - 2PM

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        #23
        Pls pol424-11am

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          #24
          What happend? why did the admin stop posting please we need these questions to aid us.

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          • Fecoms
            Fecoms commented
            Editing a comment
            The post was not made by the admin, it was a Senior Member of the forum who was interested to share the details. He will be available shortly to attend to you guys request.

          #25
          Originally posted by Godfrey94 View Post
          What happend? why did the admin stop posting please we need these questions to aid us.

          Comment


            #26




            NATIONAL OPEN UNIVERSITY OF NIGERIA
            Plot 91, Cadastral Zone, NnamdiAzikwe Express Way, Jabi, Abuja, FCT
            Faculty of Health Sciences
            Department of Nursing Sciences
            April 2019 Examination
            Programme: Bachelor of Nursing Science
            Course Code: NSC316
            Course Title: Public-Community Health Nursing I
            Course Credit Units: 3 Units
            Total Marks: 70 Marks
            Time Allowed: 2 ½ Hours
            Instruction: Answer All the Questions

            Question 1
            (a) Define community according to MacIver, and list the functions of a community.(2marks)
            (b) Describe five (5) main functions of a community (10marks)
            (c) Explain the steps of teaching process in a community health nursing. (9marks)
            (d) Enumerate the role of public health/community health nurses in Health Surveillance.(4 marks)

            Question 2
            (a) Discuss factors that affect family and its function. (10marks)
            (b) Enumerate the basic characteristics of a healthy family. (5marks)
            (c) Describe how a community health nurse assesses a community (5marks)
            (d) Explain the term panel discussion (5marks)


            Question 3
            (a) Enumerate the roles of public health nursing as given by American Public Health Association in 1996. (6 marks)
            (b) Identify six (6) key principles of health promotion. (6 marks)
            (c) Explain the components of health intervention. (8marks)

            Comment


              #27
              [IMG]file:///C:%5CUsers%5Cuser%5CAppData%5CLocal%5CTemp%5Cmsoht mlclip1%5C01%5Cclip_image001.jpg[/IMG]

              NATIONAL OPEN UNIVERSITY OF NIGERIA
              UNIVERSITY VILLAGE, PLOT 91 CADASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI - ABUJA.
              FACULTY OF SCIENCES
              DEPARTMENT OF PURE AND APPLIED SCIENCE
              APRIL/MAY, 2019EXAMINATIONS

              COURSE CODE: CHM 316
              COURSE TITLE: INDUSTRIAL CHEMICAL TECHNOLOGY I
              CREDIT UNIT: 2
              TIME: 2 Hours
              INSTRUCTION: Answer question one (1) andany other three (3) questions.

              QUESTIONONE

              1a. What is heat transfer. Describe the fundamental methods of heat transfer?3 marks
              1b. Describe mass transfer. 5 marks
              1c. Explain the modes of mass transfer.12 marks
              1d. What is unit process. 5 marks

              QUESTION TWO

              2a. State the Fourier’s law of heat conduction. 2 marks
              2b. Mention six (6) examples of mass transfer.3 marks
              2c. Describe diffusion flux.2 marks
              2d. Describe briefly a reactor and enumerate types of reactors. 8 marks
              QUESTION THREE

              3a.Write briefly on physical and chemical processes with appropriate illustrations.71/2 marks
              3b. Explain in detail the term mixing and also the stages involved in mixing.71/2 marks



              QUESTION FOUR

              4a. Explain the following separation processes:
              I Separation by flashing51/2 marks
              ii. Distillation51/2 marks
              4b. Describe agitation.4 marks

              QUESTION FIVE

              5a. Explain Fick’s first law of diffusion 5 marks
              5b. Mention three unit operations that employ heat transfer. 1½ marks

              5bii) Using boiling of water in open air, explain mass transfer by change of phase. 2 marks

              5c) Draw a flow chart of physical processes of salt manufacture. 21/2 marks

              5d) Discuss briefly Gravitational separation: 4 marks


              Comment


                #28
                [IMG]file:///C:%5CUsers%5Cuser%5CAppData%5CLocal%5CTemp%5Cmsoht mlclip1%5C01%5Cclip_image001.jpg[/IMG]

                NATIONAL OPEN UNIVERSITY OF NIGERIA
                UNIVERSITY VILLAGE, PLOT 91 CADASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI - ABUJA.
                FACULTY OF SCIENCES
                DEPARTMENT OF PURE AND APPLIED SCIENCE
                APRIL/MAY, 2019FIRST SEMESTER EXAMINATION

                COURSE CODE: CHM 414
                COURSE TITLE: PHOTOCHEMISTRY AND PERICYCLIC REACTIONS
                COURSE UNIT: 2
                TIME: 2 HOURS
                INSTRUCTION: Answerquestion one and any other three questions.

                QUESTION ONE
                1a) State and explain the 1st and 2nd laws of photochemistry.(8 marks).

                1bi) Write a short note on photochemistry induced by visible and ultraviolet light.(6 marks)

                1bii)Elucidate the relationship between light absorption and energy difference between two energy levels involved in a transition. (4 marks)


                1ci) Explain pericyclic reactions. (3 marks)

                1cii) What are the characteristics of pericyclic reactions?(4 marks)

                QUESTION TWO

                2a. Distinguish between (i) concerted and stepwise processes (ii) synchronous and asynchronous systems. (4 marks)

                2b. Explain the following Stereochemical Notations:
                i. Suprafacial shifts (1 mark)
                ii. Antarafacial shifts (1 mark)
                iii. Conrotatory1 mark)
                iv. Disrotatory (1 mark)

                2c. The reaction medium is definitely among the most important factors determining chemical reactivity initiated by light. Discuss. (2 marks)

                2di. Write short notes on photo-oxidation and its applications. (2 marks)

                2dii. Give three applications of photochemistry in everyday life (3 marks)


                QUESTION THREE

                3a. Discuss the Frank – Condon principle. (6 marks)

                3b. State the criteria that are essential for all photochemical reactions. (2 marks)

                3c. Provide list of classification forcycloaddition reactions according to the number of pi electrons that interact in the reaction.
                3d. Explain the terms allowed and forbidden reactions. (3 marks)


                QUESTION FOUR

                4a. Discuss briefly the processes involved in a photochemical reaction. (6 marks)

                4b. With the aid of a suitable diagram, describe stimulated emission. (6 marks)

                4c. The reaction medium is definitely among the most important factors determining chemical reactivity initiated by light. Discuss. (2 marks)

                4d. State any two selection rules upon which the probability of an electronic transition is predicted.
                (1 mark)

                QUESTION FIVE

                5ai.What is laser? (3 marks)
                5aii. Describe how a laser is produced. (6 marks)
                5aiii.State one (1) application of laser. (1 mark)

                5b. Explain Group transferpericyclic reaction, giving one example.(5marks)





                Comment


                  #29




                  NATIONAL OPEN UNIVERSITY OF NIGERIA
                  University Village, 91 Cadastral Zone, Nnamdi Azikwe Expressway, Jabi, Abuja
                  FACULTY OF SCIENCES
                  APRIL, 2019 EXAMINATIONS

                  COURSE CODE: CIT342
                  COURSE TITLE: Formal Languages and Automata Theory
                  CREDIT: 3 Units
                  TIME ALLOWED: 2½ Hours
                  INSTRUCTION: Answer Question 1 and any other FOUR (4) Questions

                  1a) Distinguish between a word and a vocabulary in formal language. Use examples to illustrate your answer (3 marks)
                  b) Let V be a set of strings. Is V+ = V*? Justify your answer. (3 marks)
                  c) Enumerate the components of a formal grammar. (4 marks)
                  d) Compare context-free grammar and regular grammar (4 marks)
                  e) Differentiate between an alphabet and a language (2 marks)
                  f) Enumerate any two of the typical questions being asked about formalism in formal language theory. (2 marks)
                  g) Define automata theory. (2 marks)
                  h) State the two ways of implementing a DFA. (2 marks)

                  2a) Formally define an automaton (5 marks)
                  b) Briefly describe any two of the popular variations in the definition of different components of automata. (7 marks)
                  3a) List any four types of automata and state their respective recognizable language. (6 marks)
                  b) In the context of automata theory, briefly describe the following terms:
                  • Recognised language (2 marks)
                  • (2 marks)
                  • (2 marks)
                  4a) Thinking of an automaton as a computer, state the way(s) it can handle non-determinism? (2 marks)
                  b) Is a Non-Deterministic Finite Automaton (NFA) more powerful than a Deterministic Finite Automaton (DFA)? Explain. (4 marks)
                  c) State the precedence of the following with respect to regular expressions: (2 marks)
                  • Kleene Star
                  d) Briefly explain the concept of ambiguity in grammars. (4 marks)

                  5a) Describe the types of Push Down Automata (PDAs). (3 marks)
                  b) Give the formal definition of a PDA (4 marks)
                  c) List any two ways of defining a language (2 marks)
                  d) Enumerate any two of the mathematical concepts needed to proof the Halting Problem. (3 marks)

                  6a) What does it mean to say a formally stated problem is:
                  • Provably unsolvable?(1 mark)
                  b) State the Halting Problem. (2 marks)
                  c) (i) State Godel incompleteness theorem. (2 marks)
                  (ii) Basically, what did Godel prove? (2 marks)
                  d) When is formal system said to be:
                  i) Complete? (1½ marks)
                  ii) Inconsistent? (1½ marks)

                  Comment


                    #30


                    NATIONAL OPEN UNIVERSITY OF NIGERIA
                    UNIVERSITY VILLAGE, PLOT 91 CADASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI - ABUJA.
                    FACULTY OF SCIENCES
                    DEPARTMENT OF PURE AND APPLIED SCIENCE
                    APRIL/MAY, 2019FIRST SEMESTER EXAMINATION

                    COURSE CODE: CHM 414
                    COURSE TITLE: PHOTOCHEMISTRY AND PERICYCLIC REACTIONS
                    COURSE UNIT: 2
                    TIME: 2 HOURS
                    INSTRUCTION: Answerquestion one and any other three questions.

                    QUESTION ONE
                    1a) State and explain the 1st and 2nd laws of photochemistry.(8 marks).

                    1bi) Write a short note on photochemistry induced by visible and ultraviolet light.(6 marks)

                    1bii)Elucidate the relationship between light absorption and energy difference between two energy levels involved in a transition. (4 marks)


                    1ci) Explain pericyclic reactions. (3 marks)

                    1cii) What are the characteristics of pericyclic reactions?(4 marks)

                    QUESTION TWO

                    2a. Distinguish between (i) concerted and stepwise processes (ii) synchronous and asynchronous systems. (4 marks)

                    2b. Explain the following Stereochemical Notations:
                    i. Suprafacial shifts (1 mark)
                    ii. Antarafacial shifts (1 mark)
                    iii. Conrotatory1 mark)
                    iv. Disrotatory (1 mark)

                    2c. The reaction medium is definitely among the most important factors determining chemical reactivity initiated by light. Discuss. (2 marks)

                    2di. Write short notes on photo-oxidation and its applications. (2 marks)

                    2dii. Give three applications of photochemistry in everyday life (3 marks)


                    QUESTION THREE

                    3a. Discuss the Frank – Condon principle. (6 marks)

                    3b. State the criteria that are essential for all photochemical reactions. (2 marks)

                    3c. Provide list of classification forcycloaddition reactions according to the number of pi electrons that interact in the reaction.
                    3d. Explain the terms allowed and forbidden reactions. (3 marks)


                    QUESTION FOUR

                    4a. Discuss briefly the processes involved in a photochemical reaction. (6 marks)

                    4b. With the aid of a suitable diagram, describe stimulated emission. (6 marks)

                    4c. The reaction medium is definitely among the most important factors determining chemical reactivity initiated by light. Discuss. (2 marks)

                    4d. State any two selection rules upon which the probability of an electronic transition is predicted.
                    (1 mark)

                    QUESTION FIVE

                    5ai.What is laser? (3 marks)
                    5aii. Describe how a laser is produced. (6 marks)
                    5aiii.State one (1) application of laser. (1 mark)

                    5b. Explain Group transferpericyclic reaction, giving one example.(5marks)

                    Comment

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