Last day electronics

Which components could change the delay in LED's switching?

• Capacitors

• Diodes

• LED's

• Resistors

What is this (found in the alarm receiver and VU meter).

• Transistor

• Op-amp

• Diode

• LED

Our input to the VU meter was provided by a

• Oscilloscope

• Stabilised power supply

• Multimeter

• Signal generator

Which is not required in the electronics lab

• Safety glasses

• Gloves

• Safety shoes

• Smock

Who collects data from 'good spot' cards and accident report forms at most workplaces?

• Health and Safety team

• The cleaners

• Human Resource

• Security

A ---------- power supply

This is

• I am bored

• printed circuit board

• Bread board

• Stripboard

What is this?

• Capacitor

• Infrared LED

• potentiometer

• Switch

The is a ?

• variable capacitor

• electrolytic capacitor

• ceramic capacitor

• resistor

The chip we used for the traffic light circuit was?

• LM386

• 555

• LM368

• LM525