Question

As Becky was driving "Old Betsy," the family station wagon, the engine finally quit, being worn out after 171,000 miles. It can be assumed that the average speed over its lifetime was 40 mph at an engine speed of 1700 RPM. The engine is a five-liter V8 operating on a four-stroke cycle. Calculate: 1. How many revolutions has the engine experienced? 2. How many spark plug firings have occurred in the entire engine? 3. How many intake strokes have occurred in one cylinder?

Answer 1

Answer:

1) 4.361 x 10 raised to power 8 revolutions

2) 1.744 x 10 raised to power 9 firings

3) 2.18 x 10 raised to power 8  intake strokes

Explanation:

The step by step explanation is as shown in the attachment

Answer 2

Following are the calculation to the given points:

Given:

Traveled distance $=171,000 \ miles$

engine speed $= 40 \ mph$

N $= 1700\ RPM$

To find:

points=?

Solution:

Calculating the wagon's entire trip time.

$\to t= \frac{\text{travelled distance}}{\text{speed of engine}}$

      $=\frac{171000}{40} \\\\= 4275\ hr$

For point i)  

Calculating the engine revolutions.

$\to n=time \times (N \times 60) = 4275 \times (1700 \times 60) \\\\\to n=4.36 \times 10^{8}\ rev$

 For point ii)  

Calculating the total number of fuel injectors that have been fired.

$\to S= \frac{total revolutions}{2} \times 8$

       $= \frac{4.36 \times 10^{8}}{2} \times 8 \\\\= 1.744 \times 10^{8} \ \ sparks$

 For point iii)  

Calculating the average intake strokes of one cylinder.  

$\to I= \frac{total rev}{2} = \frac{4.36\times 10^8}{2} = 2.18 \times 10^{8} \ strokes$

Learn more:

brainly.com/question/17150420