PPS semi Q2

What is the primary function of a steam turbine?

• Convert thermal energy into mechanical energy

• Store thermal energy

• Reduce mechanical stress

• Increase steam pressure

Which material is commonly used for turbine blades?

• Aluminum alloys

• Plastic composites

• High-alloy steels

• Copper

What is the purpose of the rotor in a steam turbine?

• To contain steam pressure

• To regulate steam flow

• To support the turbine blades

• To convert mechanical energy to electrical energy

Which material is used for the casing of high-pressure turbines?

• Aluminum

• Cr-Mo steels

• Titanium

• Cast iron

What is the function of the overspeed trip mechanism?

• To increase steam flow

• To prevent the turbine from exceeding its design speed

• To monitor oil pressure

• To control vibration levels

What type of steel is typically used for bearings in steam turbines?

• High-grade stainless steel

• Aluminum alloy

• Carbon steel

• Cast iron

What is the role of the governor control system?

• To regulate steam flow and maintain constant speed

• To monitor temperature levels

• To manage steam extraction

• To control the lubrication system

Which safety device monitors the lubricating oil pressure?

• Low lubricating oil pressure alarm

• Vibration monitoring system

• Overspeed trip mechanism

• Emergency stop valve

What material is used for gland seals in steam turbines?

• Copper

• High-temperature graphite

• Plastic

• Aluminum

What is the purpose of the throttle valve control?

• To regulate steam extraction

• To maintain oil pressure

• To control the amount of steam entering the turbine

• To monitor vibration levels