Soalan Pemotongan Laser dan Plasma

What is the main principle of laser cutting?

• Heating and melting materials using laser light

• Using oxygen and acetylene gas for combustion

• Electric arc beam melting materials

• High friction generating heat

Which gas is commonly used in oxy-acetylene cutting?

• Hydrogen and helium

• Oxygen and acetylene

• Nitrogen and argon

• Carbon dioxide and neon

What is the main advantage of plasma cutting compared to oxy-acetylene cutting?

• Cheaper in all aspects

• Suitable for all types of materials without exception

• Can cut non-ferrous metals like aluminum and copper

• Does not generate heat during cutting

What is the main energy source in laser cutting?

• High electric current

• Ultrasonic waves

• Controlled high-intensity light

• Compressed gas

What is the main role of oxygen gas in oxy-acetylene cutting?

• Helps stabilize the flame

• Acts as a shielding gas

• Heats the material before cutting

• Oxidizes metal to assist the cutting process

What does plasma cutting operate using?

• Burning gas to melt metal

• High electric current ionizing gas and producing plasma

• Laser light focused on the workpiece

• High-speed rotating mechanical knife

What is the main advantage of laser cutting compared to other cutting methods?

• Lower operating costs

• Does not require an electric power source

• High precision with minimal heat effect

• Only suitable for non-metal materials

What is the main problem in oxy-acetylene cutting?

• Cannot be used for non-ferrous metals

• Not suitable for cutting thin materials

• Leaves carbon residue on the cut surface

• Requires high-powered laser to function

What type of gas is often used in plasma cutting?

• Oxygen and acetylene

• Nitrogen, argon, and hydrogen

• Carbon dioxide and helium

• Methane and propane

What factor most affects the precision of laser cutting?

• Type of workpiece and its thickness

• Environmental wind speed

• Color of the workpiece

• Quantity of gas used