- -  AGRICULTURE CORE CURRICULUM - -


(CLF2000) Advanced Core Cluster: AGRICULTURE MECHANICS

 (CLF2900)  Unit Title: WORK AND POWER

____________________________________________________________________________
 (CLF2949)  Topic: UNIT EXAM              Time               Year(s) 
                                           1 Hour             1 / 2 / 3 / 4
____________________________________________________________________________


Student Name:___________________________

Class:      ___________________________

Score:      ___________


   1. Define the following terms:

       a. Work                        f. Planetary gears

       b. Torque                      g. Lever

       c. Horsepower                  h. psi

       d. RPM                         i. Mechanical efficiency

       e. Kinetic energy              j. Inertia

   2. List the three states of matter.

       a.____________________ b._____________________ c.__________________



   3. Solve the leverage problem:         ans: _______________________

       The force applied to the arm of a third class lever is 578 lbs. If 
       the weight is suspended 22 feet from the fulcrum and the point of 
       force application is 9 feet from the weight, how much weight will it 
       lift?

   4. What are the advantages and disadvantages of a V-belt drive system
       for power transmission?

       Advantages                        Disadvantages








   5. List the four (4) basic principles of hydraulics.

       a._________________________________________________________

       b._________________________________________________________

       c._________________________________________________________

       d._________________________________________________________

   6. Calculate the force generated by a 3" hydraulic cylinder which is 
       operated at 1500 psi pressure.

       ans. __________________

   7. Name three hydraulic system accessories commonly found on more
       complex system designs.

       a. ____________________ b. ___________________ c. ________________

   8. List five (5) rules of safety to observe when working with moving 
       machinery.

       a. _______________________________________________________________

       b. _______________________________________________________________

       c. _______________________________________________________________

       d. _______________________________________________________________

       e. _______________________________________________________________



7/9/91 YNJ/JWR/tf


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