Decision Sciences Trivia Quiz

20 Questions | By ManishaVhoraAIMS | Updated: Mar 21, 2022 | Attempts: 680

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Decision science is a toolbox of approaches and you learn which approach to take when you face certain problem. Economic rationality involves decision-making where individuals have to decide on which need to satisfy first. How well do you understand decision science? Take the quick test to find out!

Questions and Answers

1.

Which of the following is a valid objective function for a linear programming problem?
- A.
  
  Min 4X + 3Y + 6Z
- B.
  
  Max 5 XY
- C.
  
  Max 5X2 + 6Y4
- D.
  
  Min (X1+X2) / 3
2.

A simulation model uses the mathematical expressions and logical relationships of the –
- A.
  
  Computer Model
- B.
  
  Performance Measures
- C.
  
  Real system
- D.
  
  Estimated inferences
3.

The maximization or minimization of a quantity is the -
- A.
  
  Goal of a management science
- B.
  
  Objective of linear programming
- C.
  
  Decision for decision analysis
- D.
  
  Constraint of operation research
4.

The manner in which units receive their service, such as FCFS, is the –
- A.
  
  Operating Characteristics
- B.
  
  Steady State
- C.
  
  Channel
- D.
  
  Queue Discipline
5.

The solution of a transportation problem, with m- rows ( supplies) and n – columns ( destinations) is feasible if the number of occupied cells are –
- A.
  
  M + n -1
- B.
  
  M + n
- C.
  
  M X n
- D.
  
  M + n -1
6.

Customer behavior in which he moves from one queue to another in multiple channel situation is –
- A.
  
  Reneging
- B.
  
  Backing
- C.
  
  Jockeying
- D.
  
  Alternating
7.

In the queue model notation (a/b/c) : (d/e), what does c represent –
- A.
  
  Arrival pattern
- B.
  
  Number of services
- C.
  
  Service pattern
- D.
  
  Capacity of the system
8.

The prohibited cell in transportation problem is considered by considering its cost –
- A.
  
  0
- B.
  
  Negative
- C.
  
  - ∞
- D.
  
  ∞
9.

The dummy source or destinations in a transportation problem is added to –
- A.
  
  Satisfy the rim conditions
- B.
  
  Present solution from becoming degenerate
- C.
  
  Ensure that the total cost does not exceed a limit
- D.
  
  None of the above
10.

Analysis of a Markov Process -
- A.
  
  Optimizes the system
- B.
  
  Describes future behavior of the system
- C.
  
  Leads to higher order decision making
- D.
  
  All of the alternatives are true.
11.

In a multiple channel system –
- A.
  
  µ > λ
- B.
  
  Each server has its own queue
- C.
  
  Each server has the same service rate
- D.
  
  All of the alternatives are correct
12.

In case a worker can not assigned a particular job –
- A.
  
  The relevant cost item is replaced by a zero
- B.
  
  The relevant cost item is the same as the lowest cost in the entire matrix
- C.
  
  The relevant cot item is replaced by M a very large number
- D.
  
  The relevant cost item is subtracted from all the other cost item
13.

Utilization factor is –
- A.
  
  Service rate divided by arrival rate
- B.
  
  Length in the system divided by length in the queue
- C.
  
  Waiting time in system divided by waiting time in queue
- D.
  
  Arrival rate divided by service rate
14.

In (M/M/1) : (∞/FCFS) model, the system length Ls is given by -
- A.
  
  ϱ / 1-ϱ
- B.
  
  λ 2 / µ - λ
- C.
  
  1/ µ - λ
- D.
  
  ρ2 / 1-ρ
15.

Assignment problem is solved by –
- A.
  
  Simplex Method
- B.
  
  Graphical Method
- C.
  
  Vector Method
- D.
  
  Hungarian Method
16.

If Ro represent state probabilities of present period then the state probabilities end of second period is given by –
- A.
  
  R2 = R1 X P2
- B.
  
  R2 = (R0 X P2) X (R0XP2)
- C.
  
  R2 = P X R1
- D.
  
  None of the above
17.

The property of the optimum assignment matrix is –
- A.
  
  It will not have zero as its element.
- B.
  
  It will have zero as elements of one diagonal
- C.
  
  It will have zero at least one zero in each row and column
- D.
  
  None
18.

Which of the following is not an assumption of the single server queuing method –
- A.
  
  Mean arrival rate < mean service rate
- B.
  
  Queue discipline is not first came first serve
- C.
  
  Arrivals follow Poisson distribution
- D.
  
  Service times are Poisson distributed
19.

In Monte Carlo Simulation , the solutions obtained using different set of random numbers will be –
- A.
  
  Different
- B.
  
  Exactly same
- C.
  
  Non-real
- D.
  
  None of the above
20.

The first step in solving operations research problem is -
- A.
  
  Model building
- B.
  
  Obtain alternate solutions
- C.
  
  Interpreting the variables
- D.
  
  Formulation of the problem