Which of these is an output device?
Switch
Thermistor
Light-emitting diode (LED)
Which of these is a twisting force?
Compression
Torsion
Tension
How are components attached to a printed circuit board (PCB)?
Welded
Soldered
Glued
Prototype electrical products would use which type of production method?
One-off
Mass production
Continuous production
Which forming method forces molten plastic in a mould?
Casting
Vacuum forming
Injection moulding
What is laser cutting a form of?
Wastage
Addition
Forming
How does wave soldering work?
It solders from beneath, soldering the pins of components
It is soldering done by workers using a soldering iron
It is where pre-glued solder is placed in an oven to melt it into place
What is resistance measured in?
Ohms (Ω)
Volts (V)
Millimetres (mm)
Which is the correct formula for calculating resistance in a circuit?
R = V ÷ I
R = V × I
R = I ÷ V
Which metal are circuit boards made from?
Aluminium
Copper
Steel