Electrical Research & Development Association Government Apprentice Trainee Interview Questions and Answers

Regarding electrical project related discussion

Q1. Explain working of ac-dc converter
Ans. 
AC-DC converter converts alternating current (AC) to direct current (DC) for various applications.
• AC voltage is converted to DC voltage using rectifiers

• Rectifiers can be half-wave, full-wave, or bridge rectifiers

• Filtering is done to smooth out the output voltage

• Examples include power supplies for electronic devices and battery chargers
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Q2. PWM techniques, M. Tech project,
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Q1. Process knowledge on Electroplating Process from start to end
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Q1. Salary discussion
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Q1. BOQ preparations
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Q2. Billing conditions
Ans. 
Billing conditions refer to the terms and conditions related to payment for goods or services provided.
• Billing conditions may include payment due dates, late fees, and accepted forms of payment.

• They may also specify the frequency of billing, such as monthly or quarterly.

• In some cases, billing conditions may be negotiated between the provider and the client.

• For example, a software development company may require a depos...read more
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Q3. 60% running for supply
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Q4. Final customer billing
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Q5. 30% supply 90% erection
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Q6. Closer billing condition
Ans. 
Closer billing condition refers to the payment terms that are agreed upon between the client and the service provider.
• It specifies when the payment is due and under what conditions

• It is usually agreed upon before the project starts

• It can be based on milestones or time-based

• Example: 50% payment upon completion of design phase and remaining 50% upon project completion
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Q7. 10% for supply 10% for erection
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Great knowledge on c

Q1. What is H bridge
Ans. 
An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction.
• Consists of four switching elements (transistors or MOSFETs)

• Allows bidirectional control of a load

• Commonly used in motor control applications

• Can be used to control the direction of DC motors
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Q2. What is a transformer in an appliance
Ans. 
A transformer in an appliance is a device that converts high voltage electricity to lower voltage for safe use.
• Transformers consist of primary and secondary coils of wire wrapped around a core

• They work on the principle of electromagnetic induction

• Examples include transformers in power adapters for electronic devices
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Q1. Asking about solar knowledge
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Q2. Solar PV Module and design orientated
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Q1. Asked about salary expectation
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Q2. Asked about joining date
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