Nina Percept Junior Project Engineer Interview Questions and Answers for Experienced

Gravimetric mode is a method of analysis that measures the mass of a substance to determine its concentration or purity.

• Gravimetric mode involves measuring the mass of a sample before and after a chemical reaction to determine the amount of a specific component present.

• It is commonly used in analytical chemistry to determine the concentration of a particular element or compound in a sample.

• Examples include gravimetric ...read more

Mix design is the process of determining the proportions of ingredients in concrete to achieve the desired properties.

• Mix design involves selecting the appropriate materials such as cement, aggregates, water, and admixtures.

• The proportions of each ingredient are calculated based on the desired strength, workability, and durability of the concrete.

• Testing is often conducted to ensure the mix meets specifications before

PPC cement is Portland Pozzolana Cement, which is a type of cement that includes pozzolanic materials. OPC cement is Ordinary Portland Cement, a widely used type of cement.

• PPC cement contains pozzolanic materials like fly ash or silica fumes

• OPC cement is made from limestone and clay, without any additional materials

• PPC cement is known for its durability and resistance to chemical attacks

• OPC cement is commonly used for

Protection of generator is essential to prevent damage and ensure reliable operation.

• Install overcurrent protection devices to prevent excessive current flow.

• Use differential protection to detect internal faults.

• Implement reverse power protection to prevent generator from acting as a motor.

• Utilize temperature sensors to monitor overheating.

• Regularly inspect and maintain protective devices to ensure proper functioning.

AVR is a family of microcontrollers developed by Atmel.

• AVR stands for Advanced Virtual RISC.

• They are widely used in embedded systems and robotics.

• Popular AVR microcontrollers include ATmega series and ATtiny series.

Protection of transformer involves measures to prevent damage from overloading, short circuits, and other faults.

• Use of protective relays to detect abnormal conditions and isolate the transformer from the system

• Installation of fuses and circuit breakers to interrupt the flow of current in case of faults

• Regular maintenance and testing of protective devices to ensure proper functioning

• Proper grounding to prevent damage f

OPC and PPC are types of cement used in construction. OPC is Ordinary Portland Cement and PPC is Portland Pozzolana Cement.

• OPC is a type of cement that is commonly used in construction due to its high strength and durability.

• PPC is a type of cement that contains pozzolanic materials like fly ash, which makes it more resistant to chemical attacks.

• OPC is ideal for structures that require high strength, such as bridges an...read more

Some necessary IS Codes for RCC include IS 456:2000, IS 3370:2009, IS 1786:2008.

• IS 456:2000 - Code of practice for plain and reinforced concrete

• IS 3370:2009 - Code of practice for concrete structures for storage of liquids

• IS 1786:2008 - Specification for high strength deformed steel bars and wires for concrete reinforcement