1998 State Competition - 50 points Name
FFA Agricultural Mechanics Contest Contestant Number
University of Missouri  Chapter

 

ELECTRIC MOTORS


1.   Note the direct drive motor connection.  This device is:

A.  Aligned properly
B.  Aligned improperly
C.  Alignment is not needed for this power transfer device

2.   What amp load can this motor operate at continuously?
        (Assume the motor is properly wired for 115V operation.)

A. 6.8 amps
B. 3.4 amps
C. 9.5 amps
D. 4.8 amps

3. What type of motor would you expect to see device tagged 3A used with/on?

A. Capacitor start, induction run
B. Split phase start, induction run
C. Permanent split capacitor
D. Shaded pole

4. What type of bearing is used on this motor?

A. Sleeve, bushing
B. Tapered roller bearing
C. Needle bearing
D. Ball bearing

5. What type of position would this motor be considered for?

A. Vertical
B. Horizontal
C. Any position required

6. What type of mounting system is used on motor tagged # 6?

  A. Rigid base mount
  B. Resilient mount
  C. Frame casting
  D. End mount

7.  The item tagged # 7 is?

A. Starting windings
B. Running windings
C. Commutator
D. Stator

8. What type of motor could the rotor tagged #8 be out of?

A. Universal
B. Shaded pole
C. Repulsion start
D. Capacitor start / induction run

9. The motor tagged # 9 would be suited for the which of the following tasks?

A. Livestock cooling fan motor
B. Grain processing (grinding)
C. Auger motor
D. Air compressor

10. Which of the following types of materials could be used to clean / resurface the part tagged # 10?

A. Item 10a
B. Item 10b
C. Item 10c
D. Cannot be resurfaced

11. Which of the following items cannot be used for motor overload protection?

A. Item 11a
B. Item 11b
C. Item 11c
D. Item 11d

12. The fuse tagged  # 12  has the ability to do which of the following?

A. Handle short overloads with out burning out
B. Burn out immediately with slight overload
C. Automatically reset when it cools down

13. Identify the motor tagged # 13:

A. Shaded pole
B. Permanent split capacitor
C. Universal
D. Capacitor start, induction run

14. Identify the motor tagged # 14:

A. Shaded pole
B. Permanent split capacitor
C. Universal
D. Capacitor start, induction run

15. Identify the motor tagged # 15:

A. Shaded pole
B. Permanent split capacitor
C. Universal
D. Capacitor start, induction run

16. Identify the motor tagged # 16:

A. Shaded pole
B. Permanent split capacitor
C. Universal
D. Capacitor start, induction run

17. What voltage is the motor tagged # 17 wired for?

A. 115 volt
B. 230 volt
C. 208 volt
D. 230 volt

The following questions refer to the name plate of an electric motor.

18. What is the number of running poles of the motor?

A. 1
B. 2
C. 3
D. 4

19. What type of thermal protection does this motor have?

A. Manual reset
B. Automatic reset
C. None
D. Fusestat

20. What is the service factor for this motor?

A. 1.0
B. 1.2
C. 1.3
D. 1.4