Steel Strips Wheels Interview Questions and Answers

The fire triangle consists of three elements: heat, fuel, and oxygen, which are essential for fire to ignite and sustain.

• Heat: The energy source that raises the material to its ignition temperature (e.g., a spark or flame).

• Fuel: Any combustible material that can burn (e.g., wood, paper, gasoline).

• Oxygen: A gas that supports combustion, typically from the air, which contains about 21% oxygen.

Fire extinguishers are categorized based on the type of fire they are designed to combat, including water, foam, and dry chemical types.

• Class A: For ordinary combustibles like wood and paper (e.g., water extinguishers).

• Class B: For flammable liquids such as gasoline and oil (e.g., foam extinguishers).

• Class C: For electrical fires (e.g., CO2 extinguishers).

• Class D: For combustible metals like magnesium (e.g., dry powder...read more

A Crase fire tender is used for efficient water supply and firefighting support in specific areas during emergencies.

• Provides a reliable water source for firefighting operations in remote areas.

• Equipped with pumps and hoses to quickly deploy water where needed.

• Can be used in wildland firefighting to combat brush and forest fires.

• Facilitates rapid response in urban settings where hydrants may be insufficient.

Hydrant line pressure varies, typically ranging from 20 to 100 psi, depending on system design and location.

• Standard hydrant pressure is usually between 20 to 100 psi.

• Pressure can be affected by factors like water demand and pipe size.

• For example, a fire hydrant in a residential area may have lower pressure than one in a commercial zone.

• Hydrant flow tests can determine the exact pressure and flow rate available.

PLC stands for Programmable Logic Controller. There are various types of PLCs available in the market, each with its own unique features and capabilities. Some common types include modular PLCs, compact PLCs, and rack-mounted PLCs. There are also different software programs used to program and control PLCs.

• Types of PLCs include modular PLCs, compact PLCs, and rack-mounted PLCs

• Common software programs for PLC programmin...read more

OEE stands for Overall Equipment Effectiveness and is a measure of how well a manufacturing process is performing.

• OEE is calculated by multiplying Availability, Performance, and Quality.

• Availability is the ratio of operating time to planned production time.

• Performance is the ratio of actual production to maximum possible production.

• Quality is the ratio of good parts to total parts produced.

• OEE = Availability x Performa...read more

G code and M code are machine codes used in CNC programming to control the movements and functions of a machine tool.

• G code is used to control the movements of the machine, such as linear or circular interpolation.

• M code is used to control auxiliary functions of the machine, such as turning on or off coolant or spindle rotation.

• G codes are typically used for positioning and feed rate control, while M codes are used for...read more

I have used software to create programs.

• I have used software like AutoCAD, SolidWorks, and MATLAB to create programs for production engineering.

• Using software allows for more precise and efficient programming compared to manual methods.

• Software also helps in simulating and testing programs before implementation.