Print Reading and Schematics Flashcards
7 cards from real Ramsay Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Print Reading and Schematics flashcards as text
On a thread callout '1/4-20 UNC', what does the number 20 represent?
Answer: Threads per inch
In a unified thread callout the second number is the threads per inch.
In a relay logic schematic, a coil symbol energizing causes its associated contacts to do what?
Answer: Change state (open contacts close, closed contacts open)
When a relay coil is energized, its normally open contacts close and normally closed contacts open.
A break line (a long thin line with a jog or zigzag) on a drawing is used to do what?
Answer: Show that a long uniform part has been shortened to fit the sheet
Break lines let a long object be drawn shorter while keeping its true dimension.
In a P&ID, a dashed line connecting an instrument to a process line usually represents what kind of signal?
Answer: An electrical signal
A dashed line is the standard symbol for an electrical instrument signal.
An extension line on a dimensioned drawing serves what purpose?
Answer: Extends from the part to show where a dimension begins and ends
Extension lines project from feature edges so dimension lines can be placed away from the view.
In an electrical schematic, a normally closed pushbutton switch is drawn so that in its resting state it does what?
Answer: Conducts current until the button is pressed
A normally closed pushbutton passes current at rest and opens the circuit when pressed.
What does the symbol 'R.250' on a print specify?
Answer: A radius of 0.250 inches
The letter R before a value designates a radius dimension.