MCQ - TNPSC JTO
JTO - 436 - Fitter
436 - Unit VIII Metals Metal Non Metal
193)
Which structure of steel is softest?
A.
B.
C.
D.
194)
Annealing is generally done to ______.
A.
B.
C.
D.
195)
In normalizing, steel is heated about ______ above its critical temperature.
A.
B.
C.
D.
196)
Normalizing removes ______ in steel.
A.
B.
C.
D.
197)
Which quenching medium gives moderate cooling rate?
A.
B.
C.
D.
198)
After hardening, steel becomes very brittle because of ______.
A.
B.
C.
D.
199)
The temperature for tempering hardened steel usually lies between ______.
A.
B.
C.
D.
200)
Tempering at low temperature (150–300 °C) produces structure called ______.
A.
B.
C.
D.