Fredun Pharmaceuticals Interview Questions and Answers

A 4-stroke diesel engine works on the principle of internal combustion, where fuel is ignited by compressed air.

• Intake stroke: air is drawn into the cylinder

• Compression stroke: air is compressed, raising its temperature

• Power stroke: fuel is injected and ignited, causing a rapid expansion of gases and pushing the piston down

• Exhaust stroke: the piston pushes the exhaust gases out of the cylinder

• Diesel engines are more fuel-efficient than gasoline engines

• Diesel engines are commo...read more

There are several types of engines, including internal combustion, electric, hybrid, and rotary engines.

• Internal combustion engines are the most common and include gasoline and diesel engines.

• Electric engines use electricity to power the vehicle and are becoming more popular.

• Hybrid engines combine both internal combustion and electric engines.

• Rotary engines are less common and use a unique design to generate power.

• Other types of engines include steam engines and jet engines.

The 3 main engine systems are fuel, ignition, and cooling.

• Fuel system: responsible for delivering fuel to the engine

• Ignition system: responsible for igniting the fuel-air mixture

• Cooling system: responsible for regulating the engine temperature

• Examples: gasoline engine, diesel engine, hybrid engine

Engine working refers to the process of converting fuel into mechanical energy to power a vehicle or machine.

• Fuel is ignited in the combustion chamber, creating high-pressure gases that push the pistons down.

• The pistons are connected to the crankshaft, which converts the up-and-down motion into rotational motion.

• The rotational motion is transferred to the transmission, which then powers the wheels or other machinery.

• The process involves intake, compression, combustion, and ex...read more

A value timing diagram is a graphical representation of the timing relationship between input and output signals.

• It shows the timing relationship between input and output signals

• It is used to analyze the behavior of digital circuits

• It helps in identifying timing violations and optimizing circuit performance

• It consists of a horizontal time axis and vertical voltage axis

• Examples include setup and hold time diagrams for flip-flops

SAP is a leading enterprise software company known for its ERP software solutions.

• SAP stands for Systems, Applications, and Products in Data Processing.

• SAP offers a wide range of software solutions for various business functions such as finance, HR, supply chain management, etc.

• SAP ERP (Enterprise Resource Planning) software helps organizations streamline their processes and improve efficiency.

• SAP HANA is a popular in-memory database platform developed by SAP.

• SAP has a large ...read more