A three-throw requires

by
Question:

A three-throw requires

A.

two sets of switches and two crossings

B.

three sets of switches and two crossings

C.

two sets of switches and three crossings

D.

three sets of switches and three crossings

Answer» c. two sets of switches and three crossings

Note: The above multiple-choice question is for all general and Competitive Exams in India.