Question

Amongst the Classimat faults A2, B1, D4, H2 and I1, the correct statement(s) is/are

• A. D4 and A2 are the thickest fault and the shortest fault, respectively
• B. I1 and H2 are the longest fault and the thinnest fault, respectively
• C. D4 and I1 are the thickest fault and the thinnest fault, respectively
• D. B1 and H2 are the most objectionable fault and the longest fault, respectively

Hint:

For Classimat codes, remember: the \textbf{letter} hints at the fault type/severity (thick vs thin), and the \textbf{index} tracks the length class—higher usually means longer.

Answer 1

The Correct Option is A

Step 1: Recall the Classimat coding idea.
Letters indicate the type/degree (e.g., thick vs thin) and the number/letter suffix indicates the length class. Larger index \(⇒\) longer fault; codes like D4 therefore denote very thick and very long, whereas indices like 1 or 2 denote short.
Step 2: Judge each option.
(A) D4 corresponds to a maximum-thick, long class; A2 denotes a short class among the group given. So D4 is the thickest and A2 the shortest \(⇒\) true.
(B) I1 lies in the highest length band in the set listed (longest), while H2 is a thin category among those given (thinnest) \(⇒\) true.
(C) Claims I1 is thinnest, which contradicts the coding; \(⇒\) false.
(D) Says B1 is the most objectionable and H2 the longest; neither matches the coding trends \(⇒\) false.
Final Answer: (A), (B)