In the basic stock control model, total variable cost is the sum of
- total ordering cost + total holding cost
- total ordering cost + total holding cost + purchase cost + other costs
- total ordering cost + total holding cost + purchase cost
- the fixed costs
The basic stock control model relates the economic order quantity to:
- total ordering costs
- total holding cost
- total ordering cost and total holding cost
- the annual level of demand, the ordering cost and holding cost per item p.a.
The basic stock control model assumes:
- known demand
- constant demand
- zero lead time
- all of the above
Making larger orders to gain a discount could
- increase the annual purchase cost
- increase the annual ordering cost
- increase the annual holding cost
- none of the above
The ‘simple’ model of the single server queue assumes
- some customers will leave the queue
- only so many customers will ever be in the queue
- customers will continue to wait to be served
- none of the above
If the average arrival rate is less than the average service rate
- the average number of customers in the queue will continue to increase
- the average number of customers in the queue will reach a steady state
- the average number of customers in the queue will continue to decrease
The model of the multi-channel queue assumes
- a limited number of customers
- that when you are served will depend on the queue you join
- the first to arrive are the first to be served
- all of the above
In a multi-channel queue, if the total arrival rate must be more than the total service rate
- the queue will reach a maximum length
- the queue will get longer and longer
- the queue will reach a steady state
- none of the above