[单选题] True power is expressed in ___

1、[单选题]An inductor store energy __

• A、by converting into heat
• B、by converting into chemical energy
• C、in an electrostatic field
• D、in an electro magnetic field

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2、[单选题]This presentation of aircraft corrosion control has been prepared __ you

• A、help
• B、helping
• C、to help
• D、for help

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3、[单选题]What ’s corrosion? It ’s a chemical ____ in which metal is transformed into salt and oxides.

• A、react
• B、action
• C、reaction
• D、response

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4、[单选题]___ of voltage is the maximum value measured from zero.

• A、Peak to peak value
• B、Peak value
• C、The average value
• D、The effective value

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5、[单选题]If allow to continue this form of corrosion, will damage an aircraft part__ repair.

• A、at
• B、beyond
• C、in
• D、with

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