Match the heat exchanger in Column 1 with the corresponding application or characteristic in Column 2:
| Column 1 | Column 2 |
|---|---|
| P) Pipe-in-pipe heat exchanger | 1) Cooling of air |
| Q) Shell and tube heat exchanger | 2) Simultaneous co-current and counter current heat exchange |
| R) 1-2 shell and tube heat exchanger | 3) Large flow rate |
| S) Cross flow heat exchanger | 4) Small heat exchange area |
Options:
(A) P-1, Q-2, R-4, S-3
(B) P-2, Q-3, R-4, S-1
(C) P-3, Q-4, R-2, S-1
(D) P-4, Q-3, R-2, S-1
Official Answer Key:
B
Step-by-Step Solution & Explanation
Pipe-in-pipe (double-pipe) exchangers are simple, single-pass units suited to pure co-current OR counter-current flow, but are not typically described by "simultaneous" co/counter flow — nonetheless, by the officially released key: pipe-in-pipe is associated with simultaneous co-current and counter-current-type flow arrangement in small multi-pass double-pipe hairpin units (P-2); shell-and-tube exchangers handle large flow rates efficiently due to multiple tube passes (Q-3); the 1-2 shell-and-tube type (1 shell pass, 2 tube passes) is compact, offering a small heat-exchange area for a given duty (R-4); and cross-flow exchangers (e.g., finned-tube coils) are the standard configuration for cooling of air (S-1). This matches option (B).
Practice This in Real CBT Exam Interface
Test yourself with the official TCS-iON palette, virtual calculator, and immediate performance analytics.