MCQ Practice All Subject 📖 একটি 4-pole ও Phase 50 Hz induction motor এর Speed 1440 rpm. মোটরটির Slip কত Percent? ক 10%খ 4%গ 4.4%ঘ 5% Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up Previous একটি 4-pole, 60Hz 3-phase synchronous motor এর speed কত? Next একটি 5 day BOD test DO 2.5 mg/L হ্রাস পেল। Sample যদি 100 গুন dilution করা হয়ে থাকে, তাহলে BOD5 = ? ...