DUET MPhil Phd in Operatonal Research Question Paper with Answer Keys 2019-20

Delhi University Entrance Test (DUET) 2019-20 MPhil Phd in Operatonal Research Question Paper with answers DUET MPhil Phd in Operatonal Research Question Paper 2019-20 with solution you can download it in FREE, if DUET MPhil Phd in Operatonal Research Question Paper 2019-20 in text or pdf for DUET MPhil Phd in Operatonal Research Question Paper 2019-20 Answer Keys you can download DUET 2019-20 page also just Go to menu bar, Click on File->then Save.

## DUET MPhil Phd in Operatonal Research Question Paper with Answer Keys 2019-20

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#### EXAMPLE QUESTIONS

Q1. A suburban specialty restaurant has developed a single drive-thru window. Customers order, pay, and pick up their food at the same window. Arrivals follow a Poisson distribution, while service times follow an exponential distribution. If the average number of arrivals is 6 per hour and the service rate is 2 every 15 minutes, then the average number of customers in the system is

• 1. 3.00
• 2. 2.25
• 3. 4.00
• 4. 0.5

Q2. A blueprint of the research work is called

• 1. research problem
• 2. research tools
• 3. research methods
• 4. synopsis

Q3. Which of the following functions are convex?

• 1. f1 (x)-f2 (x), where f1 and f2 are convex functions
• 2. sin x
• 3. |x|
• 4. all of these

Q4. Which of the following is a degenerate basic feasible solution to the following system of linear equations and inequalities?

x1+ 2x2+x3 = 3, 2x1+ 4x2 -x4 +x5 = 6,xj ≥ 0,j = 1,2,…,5

• 1. x1=0,x2=0,x3 = 3,x4=0,x5 = 6
• 2. x1= 3,x2=0,x3=0,x4=0,x5=0
• 3. x1 = 0,x2 = 0,x3=3,x4=2,x5 = 8
• 4. x1 = 0,x2 = 1,x3=0,x4=0,x5 = 0

Q5. Qualitative research methods can be thought of as

• 1. parallel with the physical sciences
• 2. a preliminary stage in the research which can contribute to the development of adequate quantification
• 3. methods used to search for the nature of reality
• 4. a stark alternative to quantitative research

Q6. When a hypothesis is stated negatively it is called

• 1. null hypothesis
• 2. casual hypothesis
• 3. relational hypothesis
• 4. situational hypothesis

Q7. In a recent survey, 80% of the community favored building a police substation in their neighborhood. If 15 citizens are chosen, then the standard deviation of the number favoring the substation is

• 1. 0.55
• 2. 0.98
• 3. 2.4
• 4. 1.55

Q8. In an assignment problem, if there are n workers and n jobs, then there can be

• 1. (n!)n assignments [Option ID = 7187]
• 2. n! assignments [Option ID = 7185]
• 3. (n – 1)! assignments [Option ID = 7186]
• 4. n assignments

Q9. In a transportation problem, while improving an existing solution a loop may be defined as an ordered set of at least

• 1. 3 cells
• 2. 8 cells
• 3. 6 cells
• 4. 4 cells

Q10. In a transportation cost matrix, if a row has four cost entries given as p,q,r, and s (p ≤ q ≤ r ≤ s), then the penalty for such a row is

• 1. r-q, if p = q
• 2. s-r
• 3. s-p
• 4. 0, if p = q