CPIM Inventory Planning & Control Strategies — Questions and Answers
Question 1: What is the primary goal of inventory planning?
- To increase storage costs
- To reduce order processing speed
- To optimize stock levels and meet customer demand (Correct answer)
- To delay supply chain operations
Correct answer: To optimize stock levels and meet customer demand
The primary goal of inventory planning is to strike an optimal balance between meeting customer demand and minimizing inventory-related costs. This involves determining appropriate stock levels, order quantities, and reorder points to ensure product availability without incurring excessive holding costs or risking stockouts. Effective planning supports sales and operational efficiency.
Question 2: Which of the following is a common inventory control technique?
- Randomized reordering
- Fixed-period ordering (Correct answer)
- Guess-based inventory tracking
- Annual inventory planning
Correct answer: Fixed-period ordering
Fixed-period ordering, also known as the periodic review system, is an inventory control technique where inventory levels are checked at regular, predetermined intervals. At each review, an order is placed to bring the inventory up to a target level. This contrasts with fixed-quantity systems that trigger orders when stock reaches a specific reorder point.
Question 3: What does the Economic Order Quantity (EOQ) model help determine?
- Maximum inventory capacity
- Optimal order quantity that minimizes total inventory costs (Correct answer)
- Employee scheduling
- Annual profit margins
Correct answer: Optimal order quantity that minimizes total inventory costs
The Economic Order Quantity (EOQ) model is a formula used to determine the ideal order size that minimizes the total cost of inventory. This total cost includes both the ordering costs (cost to place an order) and the holding costs (cost to store inventory). By finding this optimal quantity, businesses can reduce their overall inventory expenses.
Question 4: Which inventory strategy aims to reduce inventory levels while ensuring availability?
- Bulk inventory method
- Just-In-Time (JIT) (Correct answer)
- Random storage policy
- Push inventory model
Correct answer: Just-In-Time (JIT)
Just-In-Time (JIT) is an inventory strategy focused on receiving goods and materials only as they are needed for production or sale. Its core aim is to significantly reduce inventory holding costs and waste by minimizing stock levels. JIT ensures availability precisely when required, demanding highly coordinated supply chains.
Question 5: What is the primary function of safety stock?
- To reduce customer demand
- To protect against stockouts and demand fluctuations (Correct answer)
- To speed up delivery times
- To calculate employee bonuses
Correct answer: To protect against stockouts and demand fluctuations
Safety stock is an additional quantity of inventory held to protect against unexpected fluctuations in demand or supply lead times. It acts as a buffer, preventing stockouts and ensuring that customer orders can still be fulfilled even if actual demand exceeds forecasts or if there are delays in replenishment. This helps maintain desired service levels.
Question 6: ABC analysis in inventory control is used to:
- Classify inventory based on value and frequency (Correct answer)
- Assign employee roles
- Plan production schedules
- Calculate annual revenues
Correct answer: Classify inventory based on value and frequency
ABC analysis is an inventory categorization technique that classifies items into three groups (A, B, C) based on their annual consumption value or importance. 'A' items are high-value, low-volume and require tight control, while 'C' items are low-value, high-volume and require simpler control. This method allows businesses to prioritize inventory management efforts where they will have the greatest impact.
Question 7: Which metric is most useful for tracking inventory turnover?
- Gross profit margin
- Inventory turnover ratio (Correct answer)
- Cash flow ratio
- Fixed asset turnover
Correct answer: Inventory turnover ratio
The inventory turnover ratio is a key financial metric that measures how many times inventory is sold and replaced over a specific period. It indicates the efficiency with which a company is managing its inventory. A higher ratio generally suggests efficient inventory management, while a very low ratio might indicate overstocking or obsolescence.
Question 8: Cycle counting helps in:
- Reducing the number of products
- Ensuring inventory accuracy without full physical counts (Correct answer)
- Increasing purchase orders
- Calculating workforce efficiency
Correct answer: Ensuring inventory accuracy without full physical counts
Cycle counting is an inventory auditing procedure where a small, specific subset of inventory is counted on a regular, ongoing basis. This continuous process helps to identify and correct inventory record errors more frequently than traditional annual physical counts. It improves overall inventory accuracy without requiring a full shutdown of operations.
Question 9: A reorder point is best defined as:
- Maximum stock level allowed
- Inventory level that triggers a new purchase order (Correct answer)
- Annual sales volume
- Demand forecast accuracy
Correct answer: Inventory level that triggers a new purchase order
A reorder point (ROP) is a predetermined minimum level of inventory that, when reached, triggers the placement of a new purchase order. It is calculated to ensure that new stock arrives before existing stock runs out, taking into account lead time demand and safety stock. This mechanism helps prevent stockouts and maintain continuous supply.
CPIM Inventory Planning & Control Strategies
What is the primary goal of inventory planning?