Electrical Principles Flashcards
(26 cards)
What does the symbol for a single pole switch look like in BS7671?
A single line with a small break and a circle at one end.
True or False: The symbol for a socket outlet in BS7671 is represented by a rectangle with a line through it.
False
Fill in the blank: The symbol for a three-phase supply is represented by ______.
Three lines diverging from a point.
What is the symbol for a fuse in BS7671?
A rectangle with a line through it and a small circle.
Which symbol represents an earth connection?
A downward pointing arrow with three horizontal lines below it.
What does the symbol for a circuit breaker look like?
A rectangle with a line through it and a small break in the line.
True or False: The symbol for a lighting point is a circle with a cross inside.
True
What symbol is used to represent a transformer?
Two interlocking rectangles.
Fill in the blank: The symbol for a manual switch is represented by a ______.
Single break line with a circle.
What does the symbol for a distribution board look like?
A rectangle with multiple smaller rectangles inside.
Which symbol indicates a light fitting?
A circle with a cross or a star inside.
True or False: The symbol for a motor is represented by a square with an ‘M’ inside.
True
What is the symbol for a surge protection device?
A rectangle with a zigzag line inside.
Fill in the blank: The symbol for a bell is represented by a ______.
Bell shape with a line underneath.
What does the symbol for a data outlet look like?
A rectangle with a line and two dots inside.
Which symbol represents a fire alarm?
A triangle with an exclamation mark inside.
True or False: The symbol for a socket outlet is a rectangle with two small circles at the top.
True
What is the symbol for a photovoltaic panel?
A rectangle with lines inside representing cells.
Fill in the blank: The symbol for a three-phase motor is represented by a ______.
Square with an ‘M’ inside and three lines.
What does the symbol for an emergency stop button look like?
A red circle with a white square inside.
Which symbol indicates a smoke detector?
A circle with a wavy line inside.
True or False: The symbol for an RCD is a rectangle with a dashed line around it.
False
What is the symbol for a telephone outlet?
A rectangle with a curved line and dot.
Fill in the blank: The symbol for a UPS system is represented by a ______.
Rectangle with a lightning bolt.
