A machine part is drawn two times with different scales. The ratio of 1st drawing’s R.F. to 2nd drawing R.F. with respect to the actual object is found to be 2. The length of the second drawing is 10 mm. Find the 1st drawing length.

🎲 Try a Random Question  |  Total Questions in Quiz: 86  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
Engineering Drawing Practice Test: Scales — practice the complete quiz, review flashcards, or try a random question.

Scales topics include: Representative factor, scales types, plane and diagonal scales. Engineering drawings are almost always drawn to scale. A scale drawing is a drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount. The proportion by which the drawing of a given object is enlarged or reduced is called the scale of the drawing. The scale of a drawing is indicated by a ratio, called the Representative Fraction (RF) or Scale Factor.  Here are some types of scales used in engineering drawing: Plain scale: A line divided into a suitable number of equal... Show more

A machine part is drawn two times with different scales. The ratio of 1st drawing’s R.F. to 2nd drawing R.F. with respect to the actual object is found to be 2. The length of the second drawing is 10 mm. Find the 1st drawing length.