Noun (National open university) Live 2019 POP Exam questions

Bracet

Moderator
We are here again, I hope you all enjoyed the free TMA solutions shared on this forum.

Alot of students have been asking and begging us to post Exam questions, and we have decided to help you with all solutions.

Please note, that exams questions will be available here 15mins to exam and it will be free.

keep refreshing this page 20mins to exam and invite your friends.

make sure you invite many of your friends because if we don't see much students on this site we won't post anything.
 

Bracet

Moderator
NATIONAL OPEN UNIVERSITY OF NIGERIA
Plot 91, Cadastral Zone, Nnamdi Azikiwe Expressway, Jabi, Abuja.
FACULTY OF SCIENCES
April /May Examination 2019
Course Code: MTH309
Course Title: Optimization Theory
Credit Unit: 3
Time Allowed: 3 HOURS
Total: 70 Marks
Instruction: ATTEMPT NUMBER ONE (1) AND ANY OTHER FOUR (4) QUESTIONS
1. (a) Define Optimization Problem in or simply an Optimization Problem (2 marks)
(b) Distinguish between; (i) Unconstrained Optimization Problem and (2.5 marks)
(ii) Constrained Optimization Problem (2.5 marks)
(c) Differentiate between; (i) A solution to the problem * ( )| + (2 marks)
(ii) A solution to the problem * ( )| + (2 marks)
(d). Use the Simplex method to solve the following linear programming problem;
Maximize
Subject to;
(11 marks)
2. (a) Define the dual Problem, if we let the primal problem be as stated below; (5 marks)
Maximize
Subject to;
.
.
.
(b) Write the dual of the following primal LP problem
Maximize
Subject to;
(7 marks)
3. Solve the following linear programming problem
Minimize
Subject to;
(12 marks)
4. (a) Use penalty method to solve the following problem;
Maximize
Subject to;
(6 marks)
(b) Use two-phase simplex method to solve;
Maximize
Subject to;
(6 marks)
5. Find the dual of the following Linear programming problem;
Maximize
Subject to;
(12 marks)
6. Solve the following minimization problem;
Minimize
Subject to;
(12 marks)

C:%5CUsers%5Cuser%5CAppData%5CLocal%5CTemp%5Cmsohtmlclip1%5C01%5Cclip_image001.png

NATIONAL OPEN UNIVERSITY OF NIGERIA
PLOT 91, CADASTRAL ZONE, NNAMDI AZIKIWE EXPRESSWAY, JABI - ABUJA
FACULTY OF SCIENCES
DEPARTMENT OF PURE AND APPLIED SCIENCE
APRIL/MY, 2019 EXAMINATIONS
COURSE CODE: PHY 361
COURSE TITLE: GEOPHYSICS II
CREDIT UNIT 2
TIME ALLOWED (2 HRS)
INSTRUCTION: Answer question One (1) and any other three(3)questions
QUESTION 1
a.Explain the following terminologies:
(i) Reflection survey (3 Marks)
(ii) Positioning shots (3 Marks)
(iii) Centre shot (3 Marks)
(iv) Time–distance plots (3 Marks)
(v) Principal refractors (2 Marks)
b.discus the basic concept of seismic reflection (3 marks)
c.define seismic wave and differentiate between two broad types of seismic waves. (4marks)
d. state the area of application of seismic reflection (4 marks)
QUESTION 2
a. Briefly describe p and surface waves with relevant equations (7 marks)
b. State four (4) types of interaction between waves and subsurface geology (8 marks)
QUESTION 3
a. State the mathematical assumptions of predictive deconvolution (6 Marks) [h=2]b. Enumerate and explain types of deconvolution (9 Marks)[/h]
QUESTION 4
a. List five (5) types of seismic sources. (5 marks)
b.Describe briefly, three (3) seismic sources (6 marks)
c. Enumerate two types method of acquisition of surface wave data. (4 marks)
QUESTION 5
a. Briefly describe the basic theory of Electrical resistivity. (7.5 Marks)
b. State five (5) areas of application of this method. (7.5 Marks)
 

Bracet

Moderator
C:%5CUsers%5Cuser%5CAppData%5CLocal%5CTemp%5Cmsohtmlclip1%5C01%5Cclip_image001.jpg

National Open University of Nigeria
Plot 91, Cadastral Zone, Nnamdi Azikiwe Expressway, Jabi - Abuja
Faculty of Science
APRIL, 2019_1 EXAMINATIONS


COURSE CODE: ESM 343
COURSE TITLE: CLIMATE CHANGE AND THE ENVIRONMENT .
CREDIT: 2 Units
TIME ALLOWED: 2 Hours
Instruction: Attempt question number ONE (1) and any other THREE (3) questions. Question number one (1) carries 25 marks, while the other questions carry (15) each marks.

Q1a
  • What are the factors that influence temperature distribution on earth’s surface?(3 marks)
  • Explain the basic composition of the atmosphere(3 marks)
b.
i. Draw and label the zones of the atmosphere(3 marks)
ii. List and explain the processes that modify solar radiation(3 marks)
c.
i. State the processes by which earth surface is being heated(2 marks)
ii. Describe energy characteristics of urban areas.(2 marks)
d. Briefly explain the following:
i. Temperature(2 marks)
ii. Pressure(2 marks)
e.
i. Define the term acid precipitation and pH(3 marks)
ii. List four factors responsible for climate change(2 marks)

Q2a.
i. What is ocean current and what are their causes?(3 marks)
ii. Discuss how the history of past climate can be reconstructed. (3 marks)
b.
i. What are proxy data? Explain three (3) examples that you know(3 marks)
ii. State the importance of three (3) gases to plant, man and the environment(6 marks)
Q3a.
i. Elaborate on the term environmental lapse rate(3 marks)
ii. Describe each layer of the atmosphere(5 marks)
b.
i. Define the term albedo(3 marks)
ii. List uses of solar energy(4 marks)
Q4a.
i. Explain what is meant by atmospheric pressure.(3 marks)
ii.Examine the Gas Law as it relates to the atmosphere.(4 marks)
b.
i. Air has mass and exerts pressure in space. Explain.(3 marks)
ii. Describe a simple experiment on how to measure atmospheric pressure.(5 marks)
Q5a.
i. With the aid of annotated diagrams, explain how atmospheric pressure can be
measured.(5 marks)
ii. Describe the formation of acid precipitation(4 marks)
b.
i. State the effects of acid deposition on the environment(3 marks)
ii. Define climate change(3 marks)



National Open University of Nigeria
Plot 91, Cadastral Zone, Nnamdi Azikiwe Expressway, Jabi - Abuja
Faculty of Science
APRIL, 2019_1 EXAMINATIONS

COURSE CODE: ESM 407
COURSE TITLE: Geographic Information System.
CREDIT: 2 Units
TIME ALLOWED: 2Hours
Instruction: Attempt question number ONE (1) and any other THREE (3) questions. Question number one (1) carries 25 marks, while the other questions carry (15) marks each.

1a.Define GIS(3marks)
b. What is data updating? (2marks)
c. Outline the factors aiding the rise of GIS.(8marks)
d. Discuss the process of attribute data updating(9marks)

2a. What is hardware? (1mark)
b. List the factors to be considered for measuring quality of data. (3marks)
c. Examine the various GIS Hardware components and their functions(8marks)
3a. Explain the following as components of GIS
i)Hardware (4marks)
ii)Software (4marks)
b. Discuss the components of GIS in respect of data (4marks)

4a. Highlight the factors aiding the rise of GIS. (8marks)
b.Identify and discuss any four (4) determinants of a good quality storage device (4marks)

5a. What is geographic data? (3marks)
b. Discuss the process of attribute data updating (9marks)

6a. State the characteristics of Geographic features (6marks)
b. List the qualities of a good storage device (6marks)
 

Bracet

Moderator
NATIONAL OPEN UNIVERSITY OF NIGERIA,
PLOT 91 CADASTRAL ZONE, NNAMDI AZIKIWE EXPRESSWAY, JABI – ABUJA
FACULTY OF SCIENCES

APRIL, 2019 EXAMINATION


COURSE CODE: DAM463
COURSE CREDIT: 2
COURSE TITLE: HEALTH DATA MANAGEMENT
TIME ALLOWED: 2 Hours
INSTRUCTION: ANSWER QUESTION ONE ( 1) AND ANY OTHER THREE (3) QUESTIONS


QUESTIONS

1a. Generally clinical data on patients are presented in segments. Briefly describe any six (6) of these segments within the context of health data management(12marks)
1b. In the context of health data Management, give the full meaning of the following acronyms:
1c. Briefly discuss the three (3) major domains of health information (8 Marks)
[Total = 25 marks]

2a. Give a short account of the three-tier system of health care delivery. (9 Marks)
2b. List the four (4) major categories of health data. (4 Marks)
2c. State the primary purpose of civil registration. (2 Marks)
[Total = 15 marks]
3a.Itemize any six (6) benefits of an Electronic Medical Record [6 marks]
3b Highlight the essence of population survey. (5 Marks)
3c. Describe the two key principles to ensure data quality (4 Marks)
[Total = 15 marks]

4a. Definethe followingterms within the context of Health Data Management:
  1. Timeliness
  2. Periodicity
  3. Consistency ) 2 marks each; 2x6 = 12 marks
  4. Representativeness
  5. Disaggregation
  6. Confidentiality
4b. Name the three (3) common Input and Output types. (3 Marks)
[Total = 15 marks]

5a. What ishealth information retrieval.(3 Marks)
5b. Outline the steps involved in the retrieval process. (10 Marks)
5c.Explain the concept of secondary data, within the context of healthcare.(2Marks)
[Total = 15 marks]
 

Bracet

Moderator
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)
 

Bracet

Moderator
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)
 

Bracet

Moderator
C:%5CUsers%5Cuser%5CAppData%5CLocal%5CTemp%5Cmsohtmlclip1%5C01%5Cclip_image001.jpg


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)
 

Bracet

Moderator
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)
 
Top