MBA/MBA Operations Research Mcq Set 1 Sample Test,Sample questions

Question:
A feasible solution to a linear programming problem _________

1.must satisfy all the constraints of the problem simultaneously

2.need not satisfy all of the constraints, only some of them

3.must be a corner point of the feasible region.

4.must optimize the value of the objective function


Question:
A mixed strategy game can be solved by ______

1.Simplex method

2.Hungarian method

3.Graphical method

4.Degeneracy


Question:
A petrol pump have one pump; Vehicles arrive at the petrol pump according to poison input process at average of 12 per hour. The service time follows exponential distribution with a mean of 4 minutes. The pumps are expected to be idle for _____

1.3/5

2.4/5

3.5/3

4.6/5


Question:
A queuing system is said to be a ______________ when its operating characteristic are independent upon time

1.pure birth model

2.pure death model

3.transient state

4.steady state


Question:
A set of feasible solution to a Linear Programming Problem is _______

1.convex

2.polygon

3.triangle

4.bold


Question:
An activity which does not consume neither any resource nor time is known as ______

1.predecessor activity

2.successor activity

3.dummy activity

4.activity


Question:
An assignment problem is a particular case of ___________

1.transportation Problem

2.assignment Problem

3.travelling salesman problem

4.replacement Problem


Question:
An optimal assignment requires that the maximum number of lines which can be drawn through squares with zero opportunity cost should be equal to the number of ______

1.rows or columns

2.rows and columns.

3.rows+columns- 1

4.rows-columns.


Question:
During iteration while moving from one solution to the next, degeneracy may occur when______

1.the closed path indicates a diagonal move

2.two or more occupied cells are on the closed path but neither of them represents a corner of the path.

3.two or more occupied cells on the closed path with minus sign are tied for lowest circled value.

4.the closed path indicates a rectangle move.


Question:
For a 2.5% increase in order quantity (under fundamental EOQ problem) the total relevant cost would ______

1.increase by 2.5%.

2.decrease by 2.5%.

3.increase by 0.25%.

4.decrease by 0.25%.


Question:
For any primal problem and its dual_______

1.optimal value of objective function is same

2.dual will have an optimal solution iff primal does too

3.primal will have an optimal solution iff dual does too

4.both primal and dual cannot be infeasible


Question:
If any value in XB column of final simplex table is negative, then the solution is _______

1.infeasible

2.infeasible

3.bounded

4.no solution


Question:
If the net evaluation corresponding to any non -basic variable is zero, it is an indication of the existence of an ______

1.initial basic feasible solution

2.optimum basic feasible solution

3.optimum solution.

4.alternate optimum solution.


Question:
If the order quantity (size of order) is increased, ______

1.holding costs decrease and ordering costs increase

2.holding costs increase and ordering costs decrease

3.the total costs increase and then decrease

4.storage cost as well as stock-out cost increase


Question:
If the primal problem has n constraints and m variables then the number of constraints in the dual problem is ______

1.mn

2.m+n

3.m-n

4.m/n


Question:
If there is no non-negative replacement ratio in solving a Linear Programming Problem then the solution is _____

1.feasible

2.bounded

3.unbounded

4.infinite


Question:
In an Linear Programming Problem functions to be maximized or minimized are called _______

1.constraints

2.objective function

3.basic solution

4.feasible solution


Question:
In marking assignments, which of the following should be preferred?

1.Only row having single zero

2.Only column having single zero

3.Only row/column having single zero

4.Column having more than one zero


Question:
In program evaluation review technique network each activity time assume a beta distribution because________

1.it is a unimodal distribution that provides information regarding the uncertainty of time estimates of activities

2.it has got finite non-negative error

3.it need not be symmetrical about model value

4.the project is progressing well


Question:
In time cost trade off function analysis________

1.cost decreases linearly as time increases

2.cost increases linearly as time decreases

3.cost at normal time is zero

4.cost increases linearly as time increases


Question:
Key element is also known as _______

1.slack

2.surplus

3.artificial

4.pivot


Question:
Mathematical model of linear programming problem is important because _________

1.it helps in converting the verbal description and numerical data into mathematical expression

2.decision makers prefer to work with formal models

3.it captures the relevant relationship among decision factors

4.it enables the use of algebraic technique


Question:
Maximization assignment problem is transformed into a minimization problem by_______

1.adding each entry in a column from the maximum value in that column

2.subtracting each entry in a column from the maximum value in that column

3.subtracting each entry in the table from the maximum value in that table

4.adding each entry in the table from the maximum value in that table


Question:
Operations Research approach is _________

1.multi-disciplinary

2.scientific

3.intuitive

4.collect essential data


Question:
Priority queue discipline may be classified as___________

1.pre-emptive or non-pre-emptive

2.limited

3.unlimited

4.Finite


Question:
Replace an item when________

1.average cost upto date is equal to the current maintenance cost

2.average cost upto date is greater than the current maintenance cost

3.average cost upto date is less than the current maintenance cost.

4.next year running cost in more than average cost of nth year


Question:
Select the correct statement

1.EOQ is that quantity at which price paid by the buyer is minimum

2.If annual demand doubles with all other parameters remaining constant, the Economic Order Quantity is doubled

3.Total ordering cost equals holding cost

4.Stock out cost is never permitted


Question:
Service mechanism in a queuing system is characterized by __________

1.customers behavior

2.servers behavior

3.customers in the system

4.server in the system


Question:
The activity cost corresponding to the crash time is called the ______

1.critical time

2.normal time

3.cost slope

4.crash cost


Question:
The allocation cells in the transportation table will be called ______________ cell

1.occupied

2.unoccupied

3.no

4.Finite


Question:
The assignment algorithm was developed by ______________ method.

1.HUNGARIAN

2.VOGELS

3.MODI

4.TRAVELING SALES MAN


Question:
The assignment problem is always a ______________matrix.

1.circle

2.square

3.rectangle

4.triangle


Question:
The calling population is considered to be infinite when ______

1.all customers arrive at once

2.capacity of the system is infinite

3.service rate is faster than arrival rate

4.arrivals are independent of each other


Question:
The coefficient of slacksurplus variables in the objective function are always assumed to be ______

1.0

2.1

3.M

4.-M


Question:
The customers of high priority are given service over the low priority customers is _________

1.Pre emptive

2.FIFO

3.LIFO

4.SIRO


Question:
The difference between total and free float is _______

1.total

2.free

3.independent

4.interference


Question:
The difference between total float and head event slack is _________

1.free float

2.independent float

3.interference float

4.linear float


Question:
The minimum number of lines covering all zeros in a reduced cost matrix of order n can be ________

1.at the most n

2.at the most n

3.n-1

4.n+1


Question:
The non basic variables are called _________

1.shadow cost

2.opportunity cost

3.slack variable

4.surplus variable


Question:
The number of time estimates involved in Program Evaluation Review Technique problem is ______

1.1

2.2

3.3

4.4


Question:
The objective of network analysis is to______

1.minimize total project duration

2.minimize toal project cost

3.minimize toal project cost

4.maximize total project duration


Question:
The right hand side constant of a constraint in a primal problem appears in the corresponding dual as_________

1.a coefficient in the objective function

2.a right hand side constant of a function

3.an input output coefficient a left hand side constraint

4.coefficient variable


Question:
The slack variables indicate ______

1.excess resource available.

2.shortage of resource

3.nil resource

4.idle resource


Question:
The solution to a transportation problem with m-sources and n-destinations is feasible if the numbers of allocations are ______

1.m+n

2.mn

3.m-n

4.m+n-1


Question:
The transportation problem deals with the transportation of _______

1.a single product from a source to several destinations

2.a single product from several sources to several destinations

3.a single product from several sources to a destination

4.a multi -product from several sources to several destinations


Question:
To proceed with the Modified Distribution method algorithm for solving an transportation problem, the number of dummy allocations need to be added are______

1.n

2.n-1

3.2n-1

4.n-2


Question:
To resolve degeneracy at the initial solution, a very small quantity is allocated in _______ cell

1.occupied

2.unoccupied

3.no

4.Finite


Question:
Using ______________ method, we can never have an unbounded solution

1.Simplex

2.Dual simplex

3.Big M

4.modi


Question:
While solving a linear programming problem infeasibility may be removed by _______

1.adding another constraint

2.adding another variable

3.removing a constraint

4.removing a variable


Question:
_________ is a mathematical technique used to solve the problem of allocating limited resource among the competing activities

1.Linear Programming problem

2.Assignment Problem

3.Replacement Problem

4.Non linear Programming Problem


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