Exam 1-A	Automotive Engineering I	2nd  Semester 1428/29
Student Name:		Student No.

 

1 a)-What are the units of the following quantities ؟(ما وحدات الكميات التالية)  

Engine brake power (Pb)
Clutch torque capacity (Tc)
Engine angular speed (w)
Clutch coefficient of friction (m)

 

1 b) - Rewrite the following units in other forms:

- Watt =

- Joule =

2 a)- The following data of a 4-stroke engine is known as:
The indicated mean effective pressure (imep), cylinder bore (d), stroke (L), number of cylinders (n), and engine rpm (N).

-Write down the following quantities using the above symbols

 (أكتب الكميات التالية باستخدام الرموز الموجودة بعالية):

 

* The engine swept volume (V_e)

 

* The engine indicated power (P_i)

 

 

 

2 b)- What are the relations between the following (ما العلاقة بين التالي) ?

- Engine Indicated (P_i) & Brake (P_b) powers

 

 

- Force & Torque

 

 

- Work & Power

 

2 c) - What do those curves represent? (ما الذي تمثله تلك المنحنيات)

And what are their units (وما وحداتها) ?

A:                               [        ]     B:                               [        ]

 

3 a) What are the parts of the friction clutch and what is the function of each part?

 

i-

 

ii-

 

iii-

 

3 b) The clutch friction plate shown has the following: ri = 0.07  m            , ro = 0.09 m               , m = 0.4   If this plate will fit with a single plate clutch with multiple springs with total normal force (Fn) of  2800 N. Find: A- the mean friction radius (rm). B- the friction force (Ff) acting on the plate due to     the normal force. C- the torque transmitted (Te) by this clutch D- the torque capacity of the clutch (Tc)