Which of the following is NOT a typical use for a two-cycle engine? * 1 point Chainsaw Lawn mower Leaf blower Pole pruner In a four-cycle engine, what is the correct order of strokes? * 1 point Intake, compression, power, exhaust Compression, power, exhaust, intake Power, exhaust, intake, compression Exhaust, intake, compression, power What is the purpose of mixing oil with gasoline in a two-cycle engine? * 1 point To increase fuel efficiency To reduce emissions To provide necessary lubrication To improve cold-start performance

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**1. Which of the following is NOT a typical use for a two-cycle engine?**

- Two-cycle engines are often used in equipment that demands a high power-to-weight ratio.
- They are generally found in handheld, portable tools.
- Common applications include chainsaws, leaf blowers, and pole pruners.
- Lawn mowers, however, typically use four-cycle engines for their smoother operation and lower emissions.
  
**Answer: Lawn mower**

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**2. In a four-cycle engine, what is the correct order of strokes?**

- A four-cycle engine operates through four distinct strokes in the following order:
  1. **Intake Stroke:** The engine draws in the air-fuel mixture.
  2. **Compression Stroke:** The mixture is compressed.
  3. **Power Stroke:** The compressed mixture is ignited, producing power.
  4. **Exhaust Stroke:** The burnt gases are expelled.
- This sequence can be denoted as:  
  $$
  \text{Intake} \rightarrow \text{Compression} \rightarrow \text{Power} \rightarrow \text{Exhaust}
  $$

**Answer: Intake, compression, power, exhaust**

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**3. What is the purpose of mixing oil with gasoline in a two-cycle engine?**

- Two-cycle engines do not have a separate lubrication system.
- The oil mixed with gasoline provides the essential lubrication that reduces wear between the engine's moving parts.
- Without proper lubrication, the engine components could overheat and wear prematurely.
  
**Answer: To provide necessary lubrication**
**1. Which of the following is NOT a typical use for a two-cycle engine?** - Lawn mower **2. In a four-cycle engine, what is the correct order of strokes?** - Intake, compression, power, exhaust **3. What is the purpose of mixing oil with gasoline in a two-cycle engine?** - To provide necessary lubrication

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