A. High speed steel
B. High carbon steel
C. Forged steel
D. Mild steel
Related Mcqs:
- Cold chisel‟s hammers are made of___________________?
A. High speed steel
B. High carbon steel
C. Forged steel
D. Mild steel - Cold cracking in the heat affected zone of a high strength steel weld can take place because of the___________________?
A. Retained austenite
B. Martensite formation
C. Relatively high sulphur content in the base metal
D. Sufficient hydrogen present in the welding arc - Moist air is cooled along the line of constant ________________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs ?
A. Enthalpy
B. Relative humidity
C. Wet bulb temperature
D. Dew point temperature - Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?
A. Slip
B. Fracture
C. Winning
D. Dislocation - Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?
A. Cold
B. Work
C. Age
D. Induction - Strain hardening effect in a metal subjected to cold working is due to the ______________ mechanism?
A. Fracture
B. Dislocation
C. Slip
D. Twinning - In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?
A. 20
B. 60
C. 120
D. ∞ - Hot & cold working of material causes its _______________ deformation?
A. Visco-elastic
B. Isotropic
C. Elastic
D. Plastic - Cold heading or upsetting is categorised as the ________________ process ?
A. Extrusion
B. Bending
C. Rolling
D. Forging - Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type________________?
A. Parallel flow with equal heat capacities
B. Counter flow with equal heat capacities
C. Counter flow with unequal heat capacities
D. Parallel flow with unequal heat capacities
