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
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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
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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
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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
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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
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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
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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
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Q1. Where do you see yourself in 5 years?
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It was basic level coding question. you can answer if you strong in basic level of java

Q1. Why CTS? are u willing to work in any location? expected salary?
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Q1. How to calculated pump head
Ans. 
Pump head is calculated by adding the static head, friction head, and velocity head.
• Calculate the static head by measuring the vertical distance between the pump centerline and the highest point of the system.

• Calculate the friction head by considering the pipe length, diameter, roughness, and flow rate.

• Calculate the velocity head by using the formula: V^2 / (2g), where V is the velocity of the fluid and g is the accele...read more
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Q2. How to oprate the fire alaram system
Ans. 
To operate the fire alarm system, follow these steps: activate the alarm, evacuate the building, and wait for emergency responders.
• Activate the fire alarm by pulling the nearest alarm pull station or pressing the alarm button.

• Evacuate the building immediately using the nearest exit and do not use elevators.

• Wait for emergency responders to arrive and provide them with any relevant information about the situation.
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Q1. About technical question abot francis turbine and all welding works related fabrication works..
Ans. I have worked in around 2 yrs. in francis turbine almost 70-80 percent of francis turbine errection and alignment was learned.. and drawing study also.. good about the turbine.. and also all general and regular fabrication works also known.. penstock liner fab. with 7.5 dia pipe line fab. and errection. skills.. also i have..
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Q1. What was ur past experiencee
Ans. 2 years.. and more than two years
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Q2. What was ur qualification?
Ans. Diploma and completing b tech with same at a time parallel to the experience..
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