Basic Electrical Circuits

Question 1

Power Source

Answer 1

Question 2

Fuse

Answer 2

Question 3

Circuit Breaker

Answer 3

Question 4

Control Switch

Answer 4

Question 5

Load/Resistor

Answer 5

Question 6

Conductor

Answer 6

Question 7

What order should wiring diagrams start with

Answer 7

Power source

Circuit breaker/fuse/protective device

control switch

load

conductors connecting them all.

Question 8

Name the SI units and concept of voltage, current, resistance and power

Answer 8

Voltage; V(volts); electrical pressure

Current; A(Amperes); Electron flow

Resistance; (Ohms); Opposition to current

Power: W(Watts); Conversion of electrical energy to other forms.

Question 9

Name the pre-fixes for the multiples and sub-multiples, as well as the factor of 10 and symbol

Answer 9

Tera (T); 10¹² (

Giga (G); 10⁹

Mega (M); 10⁶

Kilo (K); 10³

Base unit; 10⁰

Milli (m); 10^-3

Micro (µ); 10^-6

Nano (n); 10^-9

Pico (p); 10^-12