Module 3 Set-3

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#1. Electric motors are often classified according to the method of connecting the field coils and armature. Aircraft engine starter motors are generally of which type

#2. A DC circuit containing a total resistance of 100 ohms has a current flow of 250 mA. The power dissipated in the circuit is

#3. A loss of electrical insulation results in ____________

#4. Power is the rate of doing work. It is measured in

#5. Static charges remaining in an aircraft are dissipated by




#6. Total resistance in parallel for R1 and R2 is

#7. The term that describes the combined resistive forces in an AC circuit is

#8. If the correct supply were connected to a DC shunt motor which had lost its residual magnetism it would

#9. An accumulation of hydrogen on the plates of a battery is known as

#10. The only practical method of maintaining a constant voltage output from an aircraft generator under varying conditions of speed and load is to vary the




#11. The method of ascertaining the voltage of a standard aircraft lead-acid battery is by checking __________

#12. One purpose of a growler test is to determine the presence of:

#13. Through which material will magnetic lines of force pass the most readily?

#14. The quill drive on an aircraft generator ___________________

#15. Ohm’s law states that:




#16. If a heavy mechanical load is removed from a series motor

#17. If the resistance of a resistor which is in series with two other resistors is doubled

#18. . How can the direction of rotation of a DC electric motor be changed

#19. Which of the following is most likely to cause thermal runaway in a nickel-cadmium battery

#20. An example of a good electrical insulator is




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