City n Guilds 153 Electrical Quiz

Which one of the following describes an LED:

• A protection device

• A switching device

• A charging device

• A lighting device

Which one of the following represents ohms:

• V

• W

• Ω

• A

Which letter in the diagram represents the multi cell battery:

• A

• B

• C

• D

The purpose of separators between the lead plates in a lead acid battery are to:

• Charge the positive plates

• Charge the negative plates

• Prevent short circuits between plates

• Stop acid corrosion between lead plates

What type of alternator windings are shown in the diagram?

• Delta

• Magneto

• Spiral

• Star

An alternator serpentine belt is normally tensioned by:

• The camshaft tensioner

• Rotational engine speed

• A mechanical rod

• A spring loaded pulley

The main difference between a starter motor with permanent field magnets instead of electro-magnetic fields is that permanent magnetic types are:

• Lighter

• Heavier

• Always in silver

• Not pre-engaged starters

The component shown in the image is:

• A halogen lamp

• A xenon lamp

• An LED

• A filament

Thermal circuit breakers and current limiters are fitted to electric window systems to:

• Amplify the motor torque

• Reduce the motor torque

• Provide a reverse direction feature

• Provide an anti trap/ overload feature

After fitting additional driving lamps it is necessary to adjust the:

• Aim

• Balance

• Charge rate

• Beam pattern