RUNGTA Diploma Electrical Engineer Interview Questions and Answers

Q1. What are type of transformer ?
Ans. 
There are several types of transformers used in electrical engineering.
• Power transformers

• Distribution transformers

• Instrument transformers

• Auto transformers

• Isolation transformers

• Step-up transformers

• Step-down transformers
Answered by AI
View 1 more answer
Q2. How many earthing required for commencing a transformer
Ans. 
The number of earthing required for commencing a transformer depends on the type and size of the transformer.
• The number of earthing required for a transformer depends on its rating and the local electrical regulations.

• In general, a single earthing electrode is sufficient for small transformers with ratings up to a few hundred kVA.

• For larger transformers, multiple earthing electrodes may be required to ensure proper gro...read more
Answered by AI
View 1 more answer
Q3. What is silika gel
Ans. 
Silica gel is a desiccant commonly used to absorb moisture and prevent the growth of mold and mildew.
• Silica gel is a porous form of silicon dioxide.

• It is often found in small packets or sachets.

• It is used in various industries such as electronics, pharmaceuticals, and food packaging.

• Silica gel can absorb moisture up to 40% of its own weight.

• It is non-toxic and chemically inert.

• Common uses include preserving the freshne...read more
Answered by AI
View 1 more answer
Q4. What is vcb? Whwere it is installed
Ans. 
VCB stands for Vacuum Circuit Breaker. It is a type of electrical switchgear used for protecting electrical circuits from overloads and short circuits.
• VCB uses vacuum as the arc quenching medium instead of oil or air.

• It is installed in high voltage power systems, such as substations and power plants.

• VCBs are commonly used in distribution networks, generator circuits, and transformer circuits.

• They provide reliable and e...read more
Answered by AI
View 1 more answer
Q5. What is the acceptable current for human ?
Ans. 
The acceptable current for humans depends on various factors such as duration, frequency, and pathway.
• The acceptable current for humans is typically below 1 mA for low-frequency currents.

• For high-frequency currents, the acceptable current is lower, usually below 0.1 mA.

• The duration of exposure also plays a significant role in determining the acceptable current.

• The pathway of the current through the body, such as hand-t...read more
Answered by AI
View 1 more answer
Q6. What is alternator?
Ans. 
An alternator is an electrical machine that converts mechanical energy into electrical energy.
• An alternator is commonly used in vehicles to charge the battery and power the electrical system.

• It operates on the principle of electromagnetic induction.

• Alternators produce alternating current (AC) which is then converted to direct current (DC) using rectifiers.

• They consist of a rotor, stator, and diodes.

• The rotor is driven ...read more
Answered by AI
View 1 more answer
Q7. What is ct transformer
Ans. 
A CT transformer, also known as a current transformer, is an electrical device used to measure alternating current (AC) by stepping down the current to a lower value.
• CT transformers are commonly used in power systems to measure high currents without directly connecting measuring instruments to the circuit.

• They consist of a primary winding, which carries the current to be measured, and a secondary winding, which is conn...read more
Answered by AI
View 1 more answer

Q1. DG other questions
Add your answer
Q2. Transformer other questions
Add your answer
Q3. Relays othee questions
Add your answer
Q4. Circuit breaker other questions
Add your answer
Q5. Power transformer
Add your answer
Q6. Motors other questions
Add your answer
Q7. Grid station other
Add your answer
Q8. Rectifier Transformer other questions
Add your answer
Q9. Distribution transformer , crrrent transformer potential Transformer power plant
Add your answer

Rectifier Generator protection