Purpose of checking manufacturing consistency

Ensure uniformity in production.

Purpose of checking product safety

Ensure products are safe to use.

Purpose of checking surface finish quality

Ensure the surface meets quality standards.

Describe what is meant by the 'visual inspection' of a component

Inspection without specialized equipment; Uses raw sight for checking components.

Desoldering pump process

1. Heat solder with iron until it melts. 2. Place desoldering tool over melted solder. 3. Push pump button downwards. 4. Press release button to vacuum solder.

State the meaning of the mechanical symbol shown

Countersink: A conical hole cut into a manufactured object.

State two types of standards.

These are categories for which marks can be awarded in standards-related questions. 1. Industry 2. National 3. International 4. Health and Safety 5. Environmental 6. Materials 7. Quality 8. Performance 9. Manufacturing 10. Internal 11. External

Explain why standards are used by engineering businesses

Commonality of communication/methods/products/ Ensures compatibility of products/systems with each other.

A reason for maintaining standards in products.

Ensuring products are appropriate for intended use

Confidence in materials

Standards ensure purchasers can trust the materials they are buying.

Compatibility between different sources/suppliers

Standards facilitate this to ensure consistency.

Independent reference points for performance

Standards provide these to measure product performance.

Reducing environmental damage

A benefit of adhering to standards.

Meeting international market requirements

Standards help products meet these requirements.

Consistency of products/processes/parts

Standards ensure this consistency.

Explain two characteristics of ‘just in time’ manufacturing

1. Reduces storage costs and wastage. 2. Ordering components/materials only when needed

Explain two characteristics of ‘just in time’ manufacturing.

Results in less wastage. Materials not left in storage for long periods

Explain two characteristics of ‘just in time’ manufacturing

1. No materials/components available, potentially stopping production. 2. Supply problem consequences.

A company needs to manufacture a one-off template, as shown in Figure. The template will be used for accurately drilling holes in car parts on a factory production line. A suitable material type, such as ferrous or non-ferrous metal.

Examples include steel and aluminium.

Reasons for material use.

Strength, hardness, ease of manufacture, cost, availability.

Manufacturing processes.

Marking out, cutting, bending, filing, drilling, welding.

Describe what is meant by the term ‘latent heat’

Energy required to change the state of a material. From solid to liquid/liquid to vapour without a change in temperature.

Ohm's Law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions remain constant. Formula for voltage. Voltage = Current \times Resistance

Describe the difference between ferrous and a non-ferrous metal

Ferrous metals contain iron and are magnetic. Non-ferrous metal does not contain iron and are not magnetic.

Explain how tempering affects the properties of a metal.

Effect of heating a workpiece below its lower critical temperature results in relaxation of internal stresses. Increased toughness/ decreased brittleness; Decreased hardness; Increased ductility

Solve the following equation: 2x + 6 = 12

Rearranging x = (12 – 6)/2 x = 3

Figure 5 shows a shape that has been marked onto a piece of material for cutting. Calculate the area of the shape.

Area of a rectangular section Length x Width = 55 x 35 = 1925 mm² Area of a triangle Base x Height / 2 = 55 x 35 / 2 = 962.5 mm² Total area calculation 1925 + 962.5 = 2887.5 mm²

Purpose of changing gear ratio

To change the speed of rotation or the torque transferred.

Completion of risk assessments

Conducted by the business to ensure safety.

Employee responsibilities

Under health and safety legislation.

Completion of procedures for safe working practice

Includes isolating energy sources.

Consideration of health and safety

Important when planning workshop activities.

Safe use of workshop tools and equipment

Includes wearing PPE and putting down guards.

Consideration of fire safety, manual handling, vibration requirements

Essential for maintaining a safe working environment.

Use of visual inspection

To check products are free from sharp edges or other defects.

Cost of training workers and purchasing safety equipment

An important factor in safety management.

Communication of safety procedures

To workers using different methods.

Selection of appropriate materials and components

To ensure safety in engineering activities.

Ensure products meet safety standards.

Ensuring calculations are correct so that products/components function in a safe manner, e.g., calculating appropriate power supply voltages.

Mar22_past_paper Flashcards Flashcards

Student preview

51 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Mandatory signs

Back

Blue

Indicate a requirement or obligation.

2.

FLASHCARD QUESTION

Front

Safe condition signs

Back

Green

Indicate no danger or provide information on emergency escape/first aid.

3.

FLASHCARD QUESTION

Front

Warning signs

Back

Yellow/amber

Indicate a general hazard or danger.

4.

FLASHCARD QUESTION

Front

Purpose of checking tolerances

Back

Mandatory

Ensure components are within specified limits.

5.

FLASHCARD QUESTION

Front

Purpose of checking specification criteria

Back

Ensure components meet design requirements.

6.

FLASHCARD QUESTION

Front

Purpose of checking dimensions

Back

Ensure components are the correct size.

7.

FLASHCARD QUESTION

Front

Purpose of checking output

Back

Ensure the product functions correctly.

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