Top 80+ Solved Engineering Metallurgy MCQ Questions Answer
Q. Following is one of the heat treatment process.
a. melting
b. solidification
c. hardening
d. none of the above
Q. One of the following is a heat treatment process for metals
a. annealing
b. normalising
c. hardening
d. all of the above
Q. From the following process,one is not a heat treatment process
a. annealing
b. normalising
c. hardening
d. machining
Q. One of the following is a transformation product of austenite.
a. austenite to pearlite
b. austenite to bainite
c. austenite to martensite
d. all of the above
Q. Pearlite is madeup of alternate colonies or lamilies of ---------and -------
a. ferrite and martensite
b. ferrite and pearlite
c. ferrite and cementite
d. none of the above
Q. transformation of austenite to bainite starts from nucleation of-------at austenitic grain boundary
a. ferrite
b. cementite
c. pearlite
d. none of the above
Q. Bainite phase is divided into two types-------and--------
a. upper bainite and lower bainite
b. large bainite and small bainite
c. fast bainite and slow bainite
d. none of the above
Q. Martensite phase is obtain by
a. fast cooling or quenching
b. slow cooling
c. no cooling
d. none of the above
Q. The isothermal transformation diagram i.e. TTT diagrams are --------
a. total transformation time
b. total temperature transformation
c. time temperature transformation
d. none of the above
Q. In the heat treatment cycle CCT means-------
a. coolest cooling rate
b. compared cooling rate
c. critical cooling rate
d. none of the above
Q. Heat treatment can be defined as
a. heating the metal in a solid state and then cooling it in a different manner
b. heating the metal to melting point nad then cool to room temperature
c. both a and b
d. none of the above
Q. One of the main purpose of heat treatment
a. to improve ductility and strength
b. to relieve internal stresses
c. to improve machinability
d. all of the above
Q. one of the following is heat treatment process for metal
a. casting
b. forging
c. rolling
d. none of the above
Q. one of the following is a purpose of anneling
a. to soften the metal
b. to relieve internal stresses
c. to improve machinability
d. all of the above
Q. dispersion hardening materials can be produced with the help of ……process
a. forging
b. rolling
c. powder metallurgy
d. none of the above