Decision Sciences Trivia Quiz
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!
- 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
Questions: 20 | Attempts: 63267 | Last updated: Jul 7, 2021
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