S&C L5 Electronics

What is the primary purpose of a Printed Circuit Board (PCB)?

• To reduce the cost of components

• To provide neat and reliable mounting for components

• To provide a flexible circuit design

• To increase the size of electronic devices

Which type of PCB construction involves components being inserted through drilled holes?

• Flexible PCB

• Through-hole PCB

• Multi-layer PCB

• Surface mount PCB

What is a key advantage of using PCB design software?

• It is only available for professional use

• It eliminates the need for testing

• It allows for quick modifications without starting over

• It requires no prior knowledge of electronics

What is the purpose of Quality Assurance (QA) in PCB design?

• To increase the complexity of the circuit

• To ensure the design is visually appealing

• To reduce the cost of production

• To verify that components are correctly sized and placed

What is the typical melting temperature range for soft solder?

• 100-150°C

• 300-350°C

• 180-220°C

• 250-300°C

What is the function of flux in soldering?

• To make soldering more difficult

• To cool the solder quickly

• To prepare metal surfaces for soldering

• To increase the weight of the solder

Which of the following is a limitation of surface mount components?

• They are too large for most projects

• They are often too small for school projects

• They are more expensive than through-hole components

• They cannot be mass produced

What is the purpose of adding test points on a PCB?

• To verify circuit functionality

• To enhance the aesthetic design

• To increase the number of components

• To reduce the size of the PCB

What material is commonly used for the composition of a PCB?

• Plastic

• Copper clad board with fibreglass

• Aluminium

• Wood

What should you do before using a soldering iron?

• Check the soldering iron for damage

• Start soldering immediately

• Use it without any precautions

• Leave it plugged in all day