1. Which type of wire joint is commonly used to connect two wires of the same diameter in a straight line? A. Tee Joint B. Western Union Joint C. Straight Joint D. Britannia Joint Ans:- B 2. The outer layers of a PNP transistor are made of which type of semiconductor material? A. N-type semiconductor sandwiched between P-type material B. P-type material only C. N-type material only D. N-type and P-type material only Ans:- B 3. Which of the following will increase the induced EMF in an alternator? A. Reduce the magnetic flux density in the rotor B. Reduce the air gap between the stator and rotor C. Increase the reluctance of the magnetic path D. Use fractional pitch winding in the stator Ans:- B 4. What does a red safety sign typically indicate in an electrical environment? A. Warning B. Danger C. Notice D. Caution Ans:- B 5. Which factor should be considered first when selecting a site for installing an earth electrode to achieve low earth resistance? A. Soil resistivity at the locati...

ONE LINER ELECTRICAL QUESTION ANS ANSWER   1. A T-T connection has higher ratio of utilization than a V-V connection only when ? ans- non identical transformer are used . 2. For 3 to 3 phase converson , which polyphase connection would you select ? ans- Delta / Inter connected star . 3. Five limb core construction of a transformer has advantage  over three limb core construction that ? ans- magnetic reluctance of the three phase can be balance . 4. Transformer winding are tapped in the middle  because ? ans- It eliminates axial force on the winding. 5. For large power transformer , it is preferred to use ? ans- Tank with separated cooler. 6. In a transformer with close magnetic cooling between primary and secondary winding ? ans- Regulation will be good . 7. For getting minimum weight of a transformer the weight of iron should be ? ans- Equal to the weight of copper. 8. A constant current transformer should not have ? ans- high value of resistance. 9. scott connection ...