Operations Research

61. Customers arrive at a box office window, being manned ny single individual, according to Poisson input process with mean rate of 20 per hour, while the mean service time is 2 minutes. Which of the following is not true for this system?

1. E(n) = 2 customers
2. E(m) = 4/3 customers
3. E(v) = 6 minutes
4. E(w) = 16 minutes

View answer

62. A game is said to be strictly determinable if______________.

1. maximin value equal to minimax value
2. maximin value is less than or equal to minimax value
3. maximin value is greater than or equal to minimax value
4. maximin value is not equal to minimax value

View answer

63. The irreducible minimum duration of the project is called ______________.

1. critical time
2. normal time
3. cost slope
4. crash duration

View answer

64. The cost of a slack variable is ______________.

1. 0
2. 1
3. 2
4. -1

View answer

65. Linear Programming Problem that can be solved by graphical method has ______________.

1. linear constraints
2. quadratic constraints
3. non linear constraints
4. bi-quadratic constraints

View answer

66. If one or more variable vanish then a basic solution to the system is called ______________.

1. non feasible region
2. feasible region
3. degenerate solution
4. basic solution

View answer

67. ______________ method is an alternative method of solving a Linear Programming Problem involving artificial variables

1. Simplex Method
2. Big-M Method
3. Dual Simplex Method
4. Graphical Mehtod

View answer

68. The server utilization factor is also known as ______________

1. erlang distribution
2. poisson distribution
3. exponential distribution
4. traffic intensity

View answer

69. In a transportation table, an ordered set of______________ or more cells is said to form a loop

1. 2
2. 3
3. 4
4. 5

View answer

70. A Linear Programming Problem have ______________ optimal solution

1. 1
2. 2
3. more than 1
4. more than 2

View answer