What type of wall electrical outlet is this? I seen a similar examine to this but she had 2...

I seen a similar examine to this but she had 2 straight pins but mine have a T pin so wanted to form sure. It kind of looks approaching this: (Disregard the periods)

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T
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Answers:    This is a 20 amp configuration. It will work with regular 120 volt appliances, but is designed to knob larger appliances.
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Shoogy99 is correct. This is 20amp receptacle, and it is for 120 volts. If the T and the l were reversed it would be a 20amp 220 volt receptacle.
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