GRS relay sizes?

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Study for the Amtrak Signal Maintenance Training – Level 1 (SMT-1) Test. Our materials include multiple choice questions and detailed explanations to help you succeed. Be prepared for your exam!

Multiple Choice

GRS relay sizes?

Explanation:
GRS relays are categorized by a size letter plus a variant number, like A1, A2, B1, B2, and so on. In the SMT-1 context, the relays you’re most often dealing with are the A-size, which includes two variants: A1 and A2. That’s why choosing A1 and A2 is the best answer—the question is pointing to the GRS sizes typically used in the material and practice scenarios for this level. The other size families (B, C, D) exist in hardware catalogs, but they’re not the pair referenced for this GRS question.

GRS relays are categorized by a size letter plus a variant number, like A1, A2, B1, B2, and so on. In the SMT-1 context, the relays you’re most often dealing with are the A-size, which includes two variants: A1 and A2. That’s why choosing A1 and A2 is the best answer—the question is pointing to the GRS sizes typically used in the material and practice scenarios for this level. The other size families (B, C, D) exist in hardware catalogs, but they’re not the pair referenced for this GRS question.

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