Q.32 Which of the following does NOT causes a bearing fault in an induction motor?Ans A. Wrong assemblingB. Mechanical stressesC. Broken bars or broken end ringsD. Incorrect lubricationCorrect Ans Provided: C
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Q.24Ans A.B.C.D.Correct Ans Provided: B
Q.20 DC जनित्र का निम्न में से कौन सा भाग चुंबकीय फ़्लक्स के प्रसार के लिए उपयोग किया जाता है?Ans A. ध्रुव (Poles)B. योक (Yoke)C. आर्मेचर कुंडलन (Armature windings)D. ध्रुव शू (Pole shoe)Correct Ans Provided: D
Q.26 Which type of cable is used when the voltage requirement exceeds 66 kV and solid cables cannot be used?Ans A. Belted cablesB. Screened cablesC. Pressure cablesD. Liquid cablesCorrect Ans Provided: C
Q.23 Which of the following statements related to parallel operating alternators is correct?Ans A. Generating cost is increasedB. Operating cost is reducedC. Low efficiencyD. Operating in less full loadCorrect Ans Provided: B
Q.31 What is the minimum factor of safety for wooden supports as per the CEA (Central Electricity Authority) Regulations, 2010?Ans A. 1.5B. 3.0C. 2.5D. 2.0Correct Ans Provided: B
Q.21 Which of the following statements related to earthing is INCORRECT?Ans A. Overload does not harm the device.B. Offering safetyC. Potential is zero.D. High earth resistance wireCorrect Ans Provided: D
Q.33Ans A.B.C.D.Correct Ans Provided: C
Q.34 परावैद्युत पदार्थों के संबंध में, निम्न में से कौन सा कथन गलत है?Ans A. प्रतिरोध का ताप गुणांक ऋणात्मक होता है।B. परावैद्युत पदार्थों की प्रतिरोधकता उच्च होती है।C. इलेक्ट्रॉनों और मूल नाभिक के मध्य आकर्षण बहुत क्षीण ...
Q.9 Which of the following types of magnet is magnetic only when the magnetic field is present?Ans A. Permanent magnetsB. Soft magnetsC. Hard magnetsD. ElectromagnetsCorrect Ans Provided: B
