engineering recuitment HPCL Junior Executive 2025 Mock Test Electrician and Wireman Electrical ACcessories

ভারতে, একক-ফেজ AC ওয়াল সকেটগুলি সাধারণত ______ কম্পাঙ্ক সহ সরবরাহ করা হয়।

1
65 Hz
2
100 Hz
3
40 Hz
4
50 Hz
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