Subtopic: Refrigeration and cold storage basics and applications
Question Statement:
For the compressor of Q.54, the stroke length, in mm, is:
Options:
(A) 16.8
(B) 33.7
(C) 50.5
(D) 67.4
Official Answer Key:
D
Step-by-Step Solution & Explanation
Appendix A — Consolidated Answer Table
Appendix B — Section-wise Weightage
Preparation observations
• The paper allots 15 of 100 marks (15%) to General Aptitude — a fixed, syllabus-independent component common to all GATE papers; treat it as a reliable, low-prep-cost scoring block.
• Highest-weightage technical sections in this paper: Section 3 — Farm Power (14 marks) and Section 1 — Engineering Mathematics (13 marks) — these merit proportionally more revision time.
• Numerical-answer-type (NAT) questions (Q.26–Q.30 in this paper) carry no negative marking — attempt every NAT question even under uncertainty, since a wrong numeric entry costs nothing while a correct one is pure gain.
• Two questions in this paper (Q.42, Q.45) were awarded "Marks to All" by the examiners owing to ambiguity in the original question — a reminder that official keys are the final authority over independently computed values, and mismatches should always be cross-checked against the released key before self-doubt sets in during revision.
• Linked-answer and common-data question pairs (Q.48–49, Q.52–53, Q.54–55) test the same underlying numerical scenario twice — an error in the first question of a pair propagates to the second, so double-check the first answer in any linked pair before moving on.
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