Step 1: Cycle and Process Breakdown - Diesel Cycle: Features two adiabatic, one isobaric, and two isochoric processes.
- Carnot Cycle: Features two adiabatic and two isothermal processes.
- Dual Cycle: Features two adiabatic, one isobaric, and one isochoric process.
- Otto Cycle: Features two adiabatic, one isobaric, and one isochoric process.
Step 2: Summary The correct matches are:
- (A) Diesel Cycle → (1)
- (B) Carnot Cycle → (II)
- (C) Dual Cycle → (III)
- (D) Otto Cycle → (IV)
Final Answer: \[ \boxed{(A) (I), (B) (II), (C) (IV), (D) (III)}\]