Which statement about polarized plugs is true?

Which statement about polarized plugs is true?

• A. They differentiate between grounded and hot conductors and fit only one way
• B. They can be plugged in any orientation
• C. They have three prongs
• D. They include a built-in fuse

Answer: (A)

Polarized plugs are designed so the two conductors are clearly distinguished by blade width, with one blade being the grounded (neutral) conductor and the other the hot conductor. Because the outlet slots are also shaped differently, the plug can enter the receptacle only in one orientation. This ensures the neutral path is connected to the appliance correctly and the hot side remains controlled by switches or fuses, reducing the risk of shock. They don’t have three prongs, they don’t include a built-in fuse, and they cannot be plugged in any orientation—the differing blade widths enforce the correct alignment.

Polarized plugs are designed so the two conductors are clearly distinguished by blade width, with one blade being the grounded (neutral) conductor and the other the hot conductor. Because the outlet slots are also shaped differently, the plug can enter the receptacle only in one orientation. This ensures the neutral path is connected to the appliance correctly and the hot side remains controlled by switches or fuses, reducing the risk of shock. They don’t have three prongs, they don’t include a built-in fuse, and they cannot be plugged in any orientation—the differing blade widths enforce the correct alignment.