Essential Part - Verbal and Reasoning

Directions to SolveFind the word that names a necessary part of the underlined word.
Q1:

dimension

A compass

B ruler

C inch

D measure

ANS:D - measure

Explanation: A dimension is a measure of spatial content. A compass (choice a) and ruler (choice b) may help determine the dimension, but other instruments may also be used, so these are not the essential element here. An inch (choice c) is only one way to determine a dimension.