Supply Chain Management and Purchasing Principles — 2024

KNEC Diploma in Supply Chain Management, Module I. Original examination questions with explained model answers for revision.

November 2024

Paper codes: 2903/101, 2907/302
Time: 3 hours
Instructions: Answer any FIVE questions. All questions carry equal marks. Answer the questions in English.

Question 1(a) — 10 marks

The supply chain management function is involved in both in-bound and out-bound logistics. Explain five ways in which these activities may be co-ordinated in order to enhance efficiency.

Model answer

  1. Share demand and inventory information: Purchasing, production and distribution should use the same forecasts and stock records so receipts match customer requirements.
  2. Integrate transport planning: Schedule incoming and outgoing vehicles together, combining compatible loads and arranging backhauls to reduce empty journeys.
  3. Synchronise delivery schedules: Time supplier deliveries, production runs and customer dispatches to avoid shortages, congestion and unnecessary waiting.
  4. Coordinate warehousing and handling: Use common receiving, storage, picking and dispatch procedures so goods move smoothly and are handled fewer times.
  5. Use joint performance monitoring: Track delivery reliability, stock levels and total logistics cost across departments, then resolve delays through regular coordination meetings.

Question 1(b) — 10 marks

Outline five types of costs that an organization may incur when maintaining the quality of materials in its operations.

Model answer

  1. Prevention costs, such as quality training, supplier development and preparing quality specifications.
  2. Inspection costs, such as checking incoming materials and conducting supplier quality audits.
  3. Testing costs, such as laboratory analysis, sample testing and calibration of testing equipment.
  4. Internal failure costs, such as scrapping defective materials, sorting rejected lots and reworking faulty output.
  5. External failure costs, such as customer returns, warranty replacements and resolving quality complaints.

Question 2(a) — 10 marks

The prices of materials used by a certain company has been rising in the recent past. Explain five factors that may account for such a trend.

Model answer

  1. Higher demand: More buyers competing for available materials allows suppliers to charge higher prices.
  2. Reduced supply: Shortages caused by poor harvests, factory disruption or scarcity of raw materials increase prices.
  3. Higher production costs: Rising wages, energy charges and input costs are passed on to purchasers.
  4. Exchange-rate depreciation: Imported materials become more expensive in local currency when that currency weakens.
  5. Higher distribution costs: Increased freight, fuel, insurance or import charges raise the delivered purchase price.

Question 2(b) — 10 marks

Explain five factors that a procurement officer may consider when determining the sources from which to acquire materials requirements in an organization.

Model answer

  1. Quality capability: Choose suppliers able to meet the required specifications consistently.
  2. Total acquisition cost: Compare price together with transport, duties, handling and other purchasing costs.
  3. Delivery reliability: Assess whether the supplier can meet required quantities and delivery dates.
  4. Production capacity and financial stability: A supplier needs adequate resources to fulfil the order throughout the contract.
  5. Location and accessibility: Distance, transport links and exposure to disruption affect lead time and continuity of supply.

Question 3(a) — 10 marks

Payment stage is one of the stages in the procurement process. Discuss five activities that are carried out at this stage.

Model answer

  1. Receive and register the supplier invoice: Record its number, date and amount to establish a clear payment trail.
  2. Match the supporting documents: Compare the invoice with the purchase order and goods received note to confirm the goods were ordered and accepted.
  3. Verify the amount payable: Check quantities, agreed prices, discounts, applicable taxes and any credit notes.
  4. Obtain payment authorisation: An authorised officer approves the verified invoice in accordance with the organisation's financial controls.
  5. Pay and update the records: Settle through the agreed method, send remittance advice and record the payment against the supplier account to prevent duplicate payment.

Question 3(b) — 10 marks

A consignment expected by a buyer has failed to be delivered as scheduled by the carrier. Explain five measures that the buyer may take to address this situation.

Model answer

  1. Trace the consignment: Contact the carrier and supplier to establish its location and the reason for the delay.
  2. Obtain and monitor a revised delivery commitment: Agree a realistic arrival date and follow up until the consignment is received.
  3. Arrange expedited or alternative transport: Use another route or carrier where the extra cost is justified by the urgency.
  4. Activate temporary supply arrangements: Use safety stock, borrow stock or buy a short-term replacement to maintain operations.
  5. Apply the relevant contractual remedies: Document the delay and pursue an agreed service credit, claim or cancellation where the contract permits it.

Question 4(a) — 10 marks

An organization has agreed with a supplier to settle the purchase price as lumpsum on full execution of the contract. Explain five reasons that may have influenced the decision.

Model answer

  1. Payment follows full performance: The buyer can confirm that all agreed goods or services have been delivered before paying.
  2. Reduced exposure to advance-payment loss: Funds are not paid out before the supplier fulfils the contract.
  3. Simpler administration: One invoice settlement reduces the processing, approval and reconciliation work associated with instalments.
  4. Fewer transaction charges: A single payment can reduce bank and other payment-processing charges.
  5. Retention of cash until completion: The buyer can use available cash in its operations until the contractual payment becomes due.

Question 4(b) — 10 marks

Explain five roles that the material handling function plays in the physical distribution system in an organisation.

Model answer

  1. Loading and unloading: Handling equipment transfers goods safely between vehicles and distribution facilities.
  2. Movement within facilities: Materials are moved between receiving, storage, picking and dispatch areas.
  3. Positioning and storage: Goods are placed in suitable storage locations for protection and efficient use of space.
  4. Order picking and consolidation: Handling brings the required items together into customer consignments.
  5. Protection during movement: Correct equipment and handling methods limit damage, loss and injury while maintaining the condition of the goods.

Question 5(a) — 10 marks

One of the documents used in the tendering process is the form of tender. Outline five types of information that should be contained in this document.

Model answer

  1. The tender reference number and identification of the goods, works or services being offered.
  2. The tenderer's legal name, address and contact details.
  3. The total tender price, currency and any stated tax treatment.
  4. The proposed delivery or completion period and the period for which the tender remains valid.
  5. The declaration of acceptance of the tender conditions, signed and dated by an authorised representative.

Question 5(b) — 10 marks

Outline five advantages of using the Electronic Fund Transfer as a method of settling suppliers payments in an organization.

Model answer

  1. Fast transfer of funds compared with preparing and delivering paper cheques.
  2. Lower handling and administrative costs, especially for repeated supplier payments.
  3. Reduced exposure to loss or theft of physical cash and cheques.
  4. A clear electronic transaction record that supports reconciliation and audit.
  5. Convenient remote payment and scheduling, subject to the bank's processing times and authorisation controls.

Question 6(a) — 10 marks

A certain organization has decided to establish a procurement department in its structure. Explain five roles that the department will play in the organization.

Model answer

  1. Plan purchasing requirements: Coordinate user requests, specifications and procurement schedules.
  2. Source and assess suppliers: Identify capable vendors and compare their offers using agreed criteria.
  3. Negotiate commercial terms: Agree prices, delivery conditions, quality requirements and payment terms.
  4. Place and administer orders: Issue purchase orders and manage the resulting purchasing contracts.
  5. Monitor supplier performance: Follow up deliveries, coordinate inspection and resolve supply or quality problems while maintaining procurement records.

Question 6(b) — 10 marks

Explain five factors that a supplier may consider when determining head time for delivery of goods to a buyer.

Model answer

The paper prints “head time”. The answer interprets this as delivery lead time.

  1. Availability of finished stock: Goods already in stock can be dispatched sooner than goods that must be manufactured.
  2. Availability of production inputs: Delays in obtaining raw materials or components lengthen the supply period.
  3. Production capacity and existing orders: A busy factory or a large order backlog increases the time needed to complete a new order.
  4. Product complexity and required checks: Custom manufacture, assembly, testing and inspection add time before dispatch.
  5. Transport distance and arrangements: The selected transport mode, route, loading schedule and any border clearance affect the delivery period.

Question 7(a) — 10 marks

Outline five assumptions of the Economic Order Quantity (EOQ) as a method of controlling stock.

Model answer

  1. Demand is known and occurs at a constant rate.
  2. Replenishment lead time is known and constant.
  3. Each order is received in full at one time.
  4. Stock-outs are not allowed in the basic model.
  5. The unit purchase price and the relevant ordering and holding costs remain constant; quantity discounts are excluded from the basic model.

Question 7(b) — 10 marks

Explain five circumstances under which a buyer may reject goods delivered by a supplier.

Model answer

  1. Failure to meet specifications: The goods have the wrong grade, dimensions, model or other agreed characteristics.
  2. Defects or damage: Inspection reveals faulty, broken or otherwise unacceptable goods.
  3. Incorrect quantity: The delivery does not conform to the agreed quantity or permitted tolerance.
  4. Expiry or unsafe condition: Perishable or regulated goods have expired or fail the agreed safety requirements.
  5. Failure to comply with delivery conditions: The consignment arrives outside an essential contractual delivery period or lacks required packaging or certification, where the contract gives a right of rejection.

July 2024

Paper codes: 2903/101, 2907/302
Time: 3 hours
Instructions: Answer any FIVE questions. All questions carry equal marks. Answer the questions in English.

Question 1(a) — 10 marks

Explain five benefits that may accrue to an organization for having an efficient supply chain management function.

Model answer

  1. Lower total costs: Coordinated purchasing, stockholding and transport reduce avoidable expenditure.
  2. Continuity of operations: Reliable availability of materials prevents production interruptions.
  3. Better customer service: Accurate orders and timely deliveries improve customer satisfaction.
  4. Lower unnecessary inventory: Sound forecasts and replenishment planning reduce excess stock and associated holding costs.
  5. Stronger competitiveness: Consistent quality, delivery reliability and cost control allow the organisation to respond effectively to the market.

Question 1(b) — 10 marks

Outline five factors that an organization may consider when developing a material specification.

Model answer

  1. The intended purpose and required performance of the material.
  2. The required quality, dimensions, composition and tolerances.
  3. Compatibility with existing equipment, components and processes.
  4. Availability from capable suppliers and avoidance of unnecessarily restrictive requirements.
  5. Cost and relevant safety, environmental or industry-standard requirements over the material's useful life.

Question 2(a) — 10 marks

Outline five pricing methods that a buyer may use in a purchase contract.

Model answer

  1. Firm fixed price: An agreed amount applies to the specified requirement without price adjustment.
  2. Adjustable or index-linked price: The price changes using an agreed formula or recognised cost index.
  3. Cost-plus pricing: Allowable costs are reimbursed together with an agreed fee or margin.
  4. Unit-rate pricing: Payment is based on the agreed rate multiplied by the actual accepted quantity.
  5. Target-cost or incentive pricing: A target cost is set and savings or overruns are shared according to an agreed arrangement.

Question 2(b) — 10 marks

Re-qualification of suppliers is one of the methods that an organisation may use in the sourcing process. Explain five advantages of this method.

Model answer

  1. Confirms continuing capability: The organisation checks whether previously approved suppliers can still meet its requirements.
  2. Keeps supplier information current: Changes in ownership, contacts, resources and financial position are identified.
  3. Maintains quality and compliance: Suppliers are reassessed against the organisation's current quality and qualification criteria.
  4. Reduces supply risk: Deteriorating capacity or performance can be detected before a new order is awarded.
  5. Supports efficient sourcing: A current list of qualified suppliers makes later invitation and evaluation more focused.

Question 3(a) — 10 marks

Explain five advantages of strictly following the purchasing procedures when acquiring goods in an organization.

Model answer

  1. Proper authorisation: Purchases are made only after the required approvals, controlling unauthorised spending.
  2. Consistent supplier evaluation: Comparable criteria improve fairness and the selection of suitable suppliers.
  3. Better cost control: Budget checks and competitive evaluation help obtain value for money.
  4. A complete audit trail: Requisitions, quotations, orders and receipt records make transactions traceable.
  5. Fewer errors and disputes: Clear responsibilities and documented terms reduce incorrect orders and misunderstandings with suppliers.

Question 3(b) — 10 marks

Outline five types of information that is contained in the goods received note.

Model answer

  1. The goods received note number and date of receipt.
  2. The supplier's name and the relevant purchase order or delivery note reference.
  3. The description, item code and units of measure of the goods received.
  4. The quantities received, accepted and rejected, with any noted damage or discrepancy.
  5. The receiving location and the name or signature of the officer who checked and received the goods.

Question 4(a) — 10 marks

ABC company limited has decided to include a clause in a purchase contract which provides for phased payment to a supplier. Outline five reasons that may account for such a decision.

Model answer

  1. To spread payments and reduce pressure on the buyer's cash flow.
  2. To link payments to verified delivery or completion milestones.
  3. To provide the supplier with working capital as performance progresses.
  4. To limit the buyer's exposure by avoiding full payment before all obligations are fulfilled.
  5. To retain a final payment until outstanding defects or incomplete work are addressed, where the contract provides for this.

Question 4(b) — 10 marks

A certain distribution company has in the recent past received complaints from its suppliers about the way it handles product returns. Outline five aspects of product returns that may be covered in the complaints.

Model answer

  1. Delays in notifying the supplier and returning the goods within the agreed period.
  2. Failure to obtain return authorisation or provide evidence of the reason for return.
  3. Poor packaging or handling that causes further damage to returned products.
  4. Missing or inaccurate return documentation, item identification and quantity records.
  5. Disagreement over freight charges, responsibility for damage and the amounts claimed as credits or refunds.

Question 5(a) — 10 marks

Explain five ways in which the purchasing departments may enhance its relationship with the production department in an organisation.

Model answer

  1. Plan requirements jointly: Production schedules and bills of materials give purchasing accurate quantities and dates.
  2. Develop specifications together: Technical users and buyers agree suitable material requirements before sourcing.
  3. Share supply information promptly: Production is informed of order status, shortages and expected delivery dates.
  4. Solve quality problems together: The departments investigate defects and work with suppliers on corrective action.
  5. Hold regular coordination meetings: Joint review of forecasts, stock and performance prevents conflicting priorities and supports agreed service targets.

Question 5(b) — 10 marks

Outline five measures that a purchasing officer may take to maintain the quality of incoming goods.

Model answer

  1. Issue clear, measurable quality specifications in orders and contracts.
  2. Select and approve suppliers with demonstrated quality capability.
  3. Require agreed inspection certificates, test results or certificates of conformity where appropriate.
  4. Arrange receiving inspection and sample testing against the specifications.
  5. Record defects and supplier performance, reject non-conforming goods and follow up corrective action.

Question 6(a) — 10 marks

Explain five elements that may constitute the price of an item to be bought in the market.

Model answer

  1. Direct material cost: The cost of raw materials or components used to make the item.
  2. Direct labour cost: Wages and related costs of the work needed to produce it.
  3. Overheads: A share of factory and business operating costs, including relevant selling and distribution expenses.
  4. Applicable taxes and duties: Charges imposed on production, importation or sale may be included in the quoted price.
  5. Supplier profit margin: The amount added to recover business risk and provide a return above the supplier's costs.

Question 6(b) — 10 marks

Explain five circumstances under which an organisation may find it appropriate to source for materials from a single source of supply.

Model answer

  1. Only one supplier can provide the requirement: A patent, exclusive right or unique technical capability leaves no practical alternative.
  2. Compatibility is essential: Existing equipment or systems require matching parts or an approved source.
  3. An emergency requires immediate supply: A capable supplier may be used where competition would cause an unacceptable delay and the relevant rules permit it.
  4. The supplier has exceptional proven performance: Consistent quality and delivery can support a deliberate long-term single-source relationship.
  5. Concentrating the volume offers justified benefits: Economies of scale, coordinated deliveries or joint development may outweigh the risks of using one supplier.

Question 7(a) — 10 marks

Explain five reasons that make it necessary for a purchasing officer to inspect goods delivered by a supplier.

Model answer

  1. Confirm quality and specification compliance: Inspection establishes whether the goods meet the agreed requirement.
  2. Verify quantities: Counting, weighing or measuring detects shortages and excess deliveries.
  3. Detect damage or defects: Problems can be identified before the goods are stored or used.
  4. Provide evidence for acceptance or rejection: Inspection findings support claims, replacements and resolution of disputes.
  5. Support payment and supplier evaluation: Verified receipt prevents paying for unacceptable goods and provides information on supplier performance.

Question 7(b) — 10 marks

Outline five types of costs that distribution company may incur when terminating goods to its customers.

Model answer

The paper prints “terminating goods”. In the distribution context, the answer addresses the costs of delivering goods to customers.

  1. Transport costs, including vehicle hire, fuel, maintenance and drivers' wages.
  2. Loading, unloading and other material-handling costs.
  3. Packaging and labelling costs for protecting and identifying consignments.
  4. Storage and inventory-holding costs while goods await dispatch.
  5. Transit insurance and delivery-documentation or shipment-processing costs.

March/April 2024

Paper codes: 2903/101, 2907/302
Time: 3 hours
Instructions: Answer any FIVE questions. All questions carry equal marks. Answer the questions in English.

Question 1(a) — 10 marks

Explain five ways in which the purchasing department may contribute to cost reduction in an organization.

Model answer

  1. Negotiate better terms: Obtain suitable prices, discounts and payment conditions while considering the total acquisition cost.
  2. Consolidate requirements: Combine compatible purchases to gain economies of scale and reduce repeated ordering costs.
  3. Use value analysis: Remove unnecessary features and select lower-cost alternatives that still perform the required function.
  4. Improve supplier and quality performance: Reliable supplies reduce inspection failures, returns, rework and production downtime.
  5. Coordinate stock and delivery planning: Order appropriate quantities and schedule deliveries to limit excess inventory, emergency buying and avoidable freight.

Question 1(b) — 10 marks

An organization is in the process of constituting a value analysis team. Outline five departments that may be represented in such a team.

Model answer

  1. Purchasing or procurement.
  2. Production or operations.
  3. Engineering or product design.
  4. Finance or cost accounting.
  5. Marketing or sales.

Question 2(a) — 10 marks

Outline five activities that are carried out within the buyer’s lead time in an organization.

Model answer

  1. Identify the requirement and prepare the purchase requisition.
  2. Approve the requisition and confirm specifications and budget availability.
  3. Identify suppliers and obtain and evaluate quotations or tenders.
  4. Prepare, approve and issue the purchase order or contract.
  5. Follow up the order and receive, inspect and make the delivered goods available for use.

Question 2(b) — 10 marks

An organisation uses the quantitative method of vendor rating. Explain five reasons that may have led to the use of the method.

Model answer

  1. Objective comparison: Numerical measures reduce reliance on personal impressions of suppliers.
  2. Consistent evaluation: The same scoring rules can be applied to every supplier.
  3. Recognition of different priorities: Weights can reflect the relative importance of quality, price and delivery.
  4. Performance tracking: Scores over time reveal improvement or deterioration in a supplier's performance.
  5. Clear support for decisions: Recorded results explain sourcing choices and identify areas requiring supplier corrective action.

Question 3(a) — 10 marks

Explain five measures that an organization may put in place to enhance efficiency in its ordering process.

Model answer

  1. Use standard order documents: Complete, consistent forms reduce omissions and correction work.
  2. Automate routine processing: An approved electronic ordering system reduces duplicate entry and speeds document flow.
  3. Set clear approval responsibilities: Defined authority limits and approval times prevent requisitions from remaining unattended.
  4. Maintain accurate item and supplier records: Correct specifications, prices and contact details reduce ordering errors.
  5. Plan and consolidate requirements: Replenishment schedules and framework arrangements reduce emergency and repetitive small orders.

Question 3(b) — 10 marks

Explain five factors that may contribute to delays in inspection of incoming goods in an organization.

Model answer

  1. Insufficient inspection staff: Too few qualified inspectors create a backlog of goods awaiting checking.
  2. Unavailable testing equipment: Equipment shortages, breakdowns or calibration requirements delay tests.
  3. Incomplete specifications or documents: Inspectors cannot confirm conformity without the required standards, certificates or order information.
  4. Large or complex consignments: Numerous items, special tests or technical complexity require more inspection time.
  5. Poor coordination and receiving arrangements: Unscheduled deliveries, congestion and delayed access to the goods hold up inspection.

Question 4(a) — 10 marks

Explain five factors that an organization may consider when determining the method to use when paying its suppliers.

Model answer

  1. Agreed payment terms: The method should comply with the contract and the supplier's acceptable arrangements.
  2. Transaction value and frequency: Large or repeated payments require a practical method with suitable limits and processing capacity.
  3. Cost of the payment method: Compare bank fees, foreign-exchange charges and administrative costs.
  4. Security and control: Consider fraud risk, authorisation requirements and the ability to trace and reconcile payment.
  5. Speed and accessibility: The method must reach the supplier on time and be available in the relevant location and currency.

Question 4(b) — 10 marks

Outline five functions that a depot perform in the distribution of Fast Moving Consumer Goods (FMCG) in an organization.

Model answer

  1. Receive bulk deliveries from manufacturers or central warehouses.
  2. Store stock close to the market and maintain a buffer for local demand.
  3. Break bulk into smaller quantities for retailers and other customers.
  4. Pick, assemble and dispatch customer orders on local delivery routes.
  5. Collect and process returned goods and reusable distribution packaging.

Question 5(a) — 10 marks

Outline five ways in which failures in the purchasing department may affect the production department in an organization.

Model answer

  1. Material shortages can stop production and leave workers and equipment idle.
  2. Late deliveries can disrupt production schedules and cause missed completion dates.
  3. Wrong or defective materials can increase rejects, rework and poor-quality output.
  4. Emergency sourcing can raise production costs through higher prices and expedited freight.
  5. Excess or unsuitable purchases can tie up funds and congest the production or storage space.

Question 5(b) — 10 marks

Outline five aspects that constitute supplier quality control process.

Model answer

  1. Define the required quality standards and measurable specifications.
  2. Evaluate and approve the supplier's quality capability.
  3. Agree quality requirements, inspection arrangements and responsibilities in the contract.
  4. Inspect and test incoming goods against the agreed requirements.
  5. Monitor defects and performance and require corrective action and follow-up where standards are not met.

Question 6(a) — 10 marks

Explain five factors that an organisation may consider when incorporating Fixed price clauses in a purchase contract.

Model answer

  1. Clarity of the requirement: A fixed price works best when the specification, quantity and scope are well defined.
  2. Expected cost stability: Major changes in material, labour or exchange costs can make a fixed price difficult to sustain.
  3. Contract duration: Longer periods expose both parties to greater uncertainty than short delivery periods.
  4. Supplier willingness and financial capacity: The supplier must be able to bear the agreed cost risk without jeopardising performance.
  5. Reasonableness of the quoted price: Cost information, market prices and competition help establish whether the fixed amount offers value for money.

Question 6(b) — 10 marks

An organization that procures commodities from international market has decided to use forward buying method. Explain five reasons that may have influenced such a decision.

Model answer

  1. Expected price increases: Buying ahead can secure a favourable current price before the market rises.
  2. Expected shortages: Advance purchasing helps secure quantities before supplies become scarce.
  3. Long international lead times: Early orders allow time for production, shipping and clearance before the materials are needed.
  4. Protection of continuity of operations: Committed future deliveries reduce the risk of interruption in a critical supply.
  5. Favourable commercial opportunities: Seasonal prices or volume terms may justify buying ahead after allowing for financing, storage and obsolescence costs.

Question 7(a) — 10 marks

Explain five factors that an organization may consider when scheduling deliveries of incoming goods.

Model answer

  1. Production and usage schedules: Deliveries should arrive before the goods are needed.
  2. Current stock and safety-stock requirements: The schedule must prevent shortages without creating unnecessary excess.
  3. Supplier lead time and reliability: Allow for the supplier's normal processing period and the likelihood of delay.
  4. Receiving and storage capacity: Match delivery times and quantities to available staff, equipment and warehouse space.
  5. Transport arrangements and costs: Vehicle availability, routes, traffic and economic load sizes affect feasible delivery dates.

Question 7(b) — 10 marks

Some organizations prefer the use of air as a mode of transporting their products. Explain five reasons that may account for this preference.

Model answer

  1. High speed: Air transport is suitable for urgent orders and short delivery deadlines.
  2. Protection of perishables: Short transit times reduce spoilage of goods with a limited shelf life.
  3. Lower inventory in transit: Faster delivery reduces the amount of capital tied up during transportation.
  4. Suitability for valuable or delicate goods: Shorter journeys and controlled handling can reduce exposure to loss or damage.
  5. Access to distant markets: Air routes connect widely separated destinations where surface transport is too slow or impractical.
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