Sanvira Industries Junior Engineer Electrical Interview Questions and Answers

Q1. Electrical Circuits Breakers?
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*A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A's share is Rs. 855, the total profit is?

*Alfred buys an old scooter for Rs. 4700 and spends Rs. 800 on its repairs. If he sells the scooter for Rs. 5800, his gain percent is:

Q1. *Why Transformer Rated In kVA, Not in KW? *What are transformer losses & their types?
Ans. 
Transformers are rated in kVA because it takes into account both active power (KW) and reactive power (KVAR). Transformer losses include copper losses and iron losses.
• Transformers are rated in kVA because they handle both active power (KW) and reactive power (KVAR).

• kVA rating considers the total power (apparent power) that the transformer can handle, including the power needed for magnetizing the core.

• Transformer losse...read more
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Q2. *Mention what is the difference between generator and alternator? *Mention what are the different kind of cables used for transmissions?
Ans. 
Generator produces direct current while alternator produces alternating current. Different cables used for transmission include coaxial, twisted pair, and fiber optic cables.
• Generator produces direct current (DC) while alternator produces alternating current (AC)

• Generator uses slip rings and brushes for transmission while alternator uses a commutator

• Different cables used for transmission include coaxial, twisted pair,
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Q3. Define the principle of motors?
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Motors operate based on the principle of electromagnetic induction, converting electrical energy into mechanical energy.
• Motors work by creating a magnetic field through the flow of current in a coil of wire.

• This magnetic field interacts with a permanent magnet or another magnetic field, causing the coil to rotate.

• The rotation of the coil is then used to drive mechanical systems, such as fans, pumps, or conveyor belts.

• D...read more
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Q1. *Why did you decide to become an electrical engineer? / What made you want to study electrical engineering
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Q2. What are the main advantages of speed control using thyristor?
Ans. 
Thyristor speed control offers precise control, energy efficiency, and reduced maintenance costs.
• Precise control of motor speed

• Improved energy efficiency by reducing power wastage

• Reduced maintenance costs due to less wear and tear on motor components

• Smooth acceleration and deceleration of motors

• Ability to control large motors with ease
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Q1. What is circuit braker
Ans. 
A circuit breaker is an automatic electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
• It is a safety device that automatically interrupts the flow of current in a circuit when it exceeds a safe level

• It is used to protect electrical equipment from damage due to overcurrent

• It can be reset after tripping, unlike a fuse which needs to be replaced

• It comes in different ...read more
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Q2. Type of motor,D.C and A.C MOTOR
Ans. 
DC motors and AC motors are two types of electric motors commonly used in various applications.
• DC motors operate using direct current, while AC motors operate using alternating current.

• DC motors are typically used in applications that require high torque at low speeds, such as in electric vehicles and robotics.

• AC motors are commonly used in household appliances, industrial machinery, and HVAC systems.

• DC motors are simp...read more
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Q1. Electrical theory and plc based question.
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Q2. Electrical and plc based question and answers.
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Q3. Electrical cable and motors.
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Q1. Why do u want to join our company
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Q2. What is ur achievement in previous company.
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Q3. What is ur salary expectation.
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Q1. Salary and why ?
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Q1. Takniki raund ka upchar hai
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Q2. Round ek upchar karne hai
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Q3. Anubhavkarna ekexperiencehai
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Q4. Kary ke pratiVikashkarna
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Q5. Work progress electrical
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Q1. About the resume and salary detail and company police and ethics related things
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After job description will get relateble test

Q1. After amplitude test will going to the final round of technical experience tests and related discussions
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Q1. Power system Electrical machine Power electronics Digital electronics Power electronics
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Q2. PLC Programming Electrical drawing Automation VFD maintenance Distribution feeder maintenance HT$LT breaker maintenance Instrument maintenance
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Q3. Project management
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Q4. Transformer maintenance
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Q5. BasicElectrical
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