10+ ICAR-Directorate Of Onion And Garlic Research Interview Questions and Answers

Three contactors are used in a star delta control circuit.

• The contactors used are typically rated for the motor's voltage and current.

• The contactors are arranged in a specific sequence to control the motor's starting current.

• The first set of contactors are used to connect the motor in a star configuration, while the second set are used to switch to a delta configuration.

• The contactors may also include overload protection to prevent damage to the motor.

• Examples of contactors u...read more

Star delta starter is used in 3-phase induction motor for reducing the starting current.

• Star delta starter reduces the starting current by starting the motor in star connection and then switching to delta connection.

• It also reduces the voltage drop during starting.

• It is used for high power motors where the starting current is very high.

• It is also used to reduce the starting torque for smooth starting.

• It is a cost-effective solution for reducing the starting current.

• It is comm...read more

Food safety refers to the handling, preparation, and storage of food in a way that prevents foodborne illnesses. Boiling point of milk is around 100 degrees Celsius.

• Food safety involves practices that prevent contamination and ensure the safety of food for consumption.

• It includes proper handling, cooking, and storage of food to prevent foodborne illnesses.

• The boiling point of milk is around 100 degrees Celsius, at which point it starts to boil and form bubbles.

• Boiling milk is...read more

Milk is a nutrient-rich liquid produced by mammals to feed their young, containing essential nutrients for human health.

• Milk is a good source of calcium, which is important for bone health.

• It also contains protein, vitamins (such as B12), and minerals (such as phosphorus and potassium).

• Milk can help in maintaining healthy teeth and can aid in muscle growth and repair.

• Some people may be lactose intolerant and need to avoid dairy milk, but there are alternative options like alm...read more

The top milk industries in India include Amul, Mother Dairy, and Nestle.

• Amul is one of the largest milk producers in India, known for its wide range of dairy products.

• Mother Dairy is a well-known brand for milk and dairy products, with a strong presence in major cities.

• Nestle also has a significant presence in the Indian milk industry, offering a variety of dairy products.

Milk should be stored at a temperature of 40°F (4°C) or below to maintain freshness and prevent bacterial growth.

• Store milk in the coldest part of the refrigerator, usually the back of the bottom shelf.

• Avoid storing milk in the refrigerator door as the temperature fluctuates more in that area.

• Check the temperature of your refrigerator regularly to ensure it is at the proper setting for milk storage.

• If milk is left out at room temperature for more than 2 hours, it should be di...read more

Viruses can be classified into different types based on their genetic material, structure, and mode of replication.

• DNA viruses

• RNA viruses

• Retroviruses

• Single-stranded viruses

• Double-stranded viruses

• Enveloped viruses

• Non-enveloped viruses

Star delta stator is a method of connecting three-phase electrical motors.

• It is used to reduce the starting current of the motor.

• It involves connecting the motor windings in a star configuration during starting and then switching to a delta configuration during operation.

• It is commonly used in industrial applications where high power motors are used.

• It helps to prevent damage to the motor and the electrical system.

• It is also known as the Wye-Delta starter.

Preventive maintenance is a proactive approach to maintenance that aims to prevent equipment failure before it occurs.

• Preventive maintenance involves regularly scheduled inspections, cleaning, and repairs to keep equipment in good working condition.

• It helps to reduce downtime, extend equipment life, and improve safety.

• Examples include changing air filters in HVAC systems, lubricating machinery, and inspecting electrical systems for signs of wear and tear.

There are several types of valves used in various industries.

• There are ball valves, gate valves, globe valves, check valves, butterfly valves, and needle valves.

• Ball valves are used in applications where tight shut-off is required.

• Gate valves are used in applications where a straight-line flow of fluid and minimum flow restriction is required.

• Globe valves are used in applications where throttling or frequent operation is required.

• Check valves are used in applications where ba...read more