10+ Junior Engineering Assistant Interview Questions and Answers

2-stroke engines have one power stroke per revolution, while 4-stroke engines have one power stroke every two revolutions.

• 2-stroke engines have a simpler design with fewer moving parts compared to 4-stroke engines.

• 2-stroke engines require a fuel-oil mixture for lubrication, while 4-stroke engines have a separate oil reservoir.

• 2-stroke engines are lighter and produce more power for their size, but are less fuel efficient than 4-stroke engines.

• Examples: 2-stroke engines are com...read more

Passing data between components can be achieved through various methods.

• Using input and output decorators to pass data between parent and child components

• Using services to share data between unrelated components

• Using event emitters to pass data from child to parent components

• Using routing parameters to pass data between components

• Using state management libraries like Redux or NgRx

IC engines are internal combustion engines where fuel is burned internally, while EC engines are external combustion engines where fuel is burned externally.

• IC engines have combustion happening inside the engine, like in a car engine.

• EC engines have combustion happening outside the engine, like in a steam engine.

• IC engines are more common in vehicles, while EC engines are used in power plants.

• IC engines are more efficient in terms of power output, while EC engines are more ef...read more

Engineering is a field that involves the application of scientific and mathematical principles to design and create structures, machines, systems, and processes.

• Engineering encompasses various disciplines such as civil, mechanical, electrical, and chemical engineering.

• Engineers use their knowledge to solve complex problems and improve existing technologies.

• Examples of engineering projects include designing bridges, developing new medical devices, and creating sustainable ener...read more

Gear terminology includes pitch, module, pressure angle, and types of gears include spur, helical, bevel, worm, etc.

• Gear terminology includes pitch, module, pressure angle, and tooth profile.

• Types of gears include spur, helical, bevel, worm, rack and pinion, etc.

• Spur gears have straight teeth and are used for parallel shafts.

• Helical gears have angled teeth for smoother operation.

• Bevel gears are used for intersecting shafts.

• Worm gears have a screw-like appearance and are used ...read more

Boyle's law states that the pressure of a gas is inversely proportional to its volume at a constant temperature.

• Boyle's law can be mathematically expressed as P1V1 = P2V2, where P represents pressure and V represents volume.

• This law is based on the assumption that the temperature remains constant.

• As the volume of a gas decreases, its pressure increases, and vice versa.

• Boyle's law is commonly used in various fields such as chemistry, physics, and engineering.

Pump change over procedure involves switching from one pump to another to ensure continuous operation.

• Ensure the pump to be switched off is properly isolated and drained.

• Verify the new pump is in good working condition before starting.

• Follow manufacturer's instructions for proper installation and connection.

• Test the new pump before putting it into full operation.

• Update any necessary documentation or log the changeover process.

AC current continuously changes direction while DC current flows in one direction.

• AC current alternates direction periodically

• DC current flows in one direction constantly

• AC current is used in household appliances

• DC current is used in batteries and electronic devices

Routing is the process of selecting a path for network traffic. A module is a self-contained unit of code that performs a specific task.

• Routing determines the best path for data to travel between two points in a network.

• Modules are used to break down complex tasks into smaller, more manageable pieces of code.

• Routing protocols include OSPF, BGP, and EIGRP.

• Modules can be reused in different parts of a program or in different programs altogether.

JavaScript has 7 data types - number, string, boolean, null, undefined, symbol, and object.

• Number - represents numeric values

• String - represents textual values

• Boolean - represents true/false values

• Null - represents intentional absence of any object value

• Undefined - represents uninitialized variables

• Symbol - represents unique identifiers

• Object - represents complex data structures

Angular has a life cycle consisting of several phases that occur during the creation, rendering, and destruction of a component.

• Angular components go through several phases: creation, initialization, rendering, and destruction

• During the creation phase, the component is instantiated and its dependencies are injected

• During the initialization phase, the component's properties are initialized

• During the rendering phase, the component's view is created and rendered

• During the destru...read more