Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases when forging large steel crankshafts using repeated closed-die impacts at gradually decreasing temperatures?
A)Cold shuts form internally✓
B)Eutectic transformation accelerates rapidly
C)Austenite grains achieve superplasticity
D)Strain energy promotes recrystallization
💡 Explanation
Cold shuts are more likely because viscous flow decreases with temperature during closed-die forging. The impact of repeated forging fails to eliminate pre-exiting laps or folds using diffusion bonding; therefore, cold shuts persist, rather than being healed at high temperatures or deformation.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which action occurs when PID controller integral windup causes actuator saturation?
- Which consequence results when exceeding an encoder's quadrature decoding frequency limit within a robotic arm's feedback loop?
- Which primary risk arises during multi-pass welding of thick structural steel sections?
- Which risk increases when piston dwell time is reduced in an internal combustion engine?
- Which outcome occurs when excessive dither in a servo valve controlling a hydraulic actuator generates frequency close to the natural resonance?
- Which distortion occurs if InterSymbol Interference increases during digital signal processing?
