A. High brittleness
B. Higher tendency to distort
C. High ductility
D. None of these
Related Mcqs:
- Coarse grained steels have____________________?
A. Low toughness
B. No tendency to distort
C. High density
D. Very high toughness - Steels with high carbon equivalent have poor Weldability, because in these steels during welding________________?
A. Carbon and other alloying elements get oxidised from the weld pool
B. Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld
C. Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld
D. Segregation of carbon and other element occurs in the weld pool leading to poor properties of
the weld - Hydrogen in liquid steels is dissolved_________________?
A. As tiny gas bubbles
B. In the atomic form
C. In the ionic form
D. In the molecular form - Machinability of hard alloys and tool steels is improved by_____________________?
A. Spheroidising
B. Annealing
C. Tempering
D. Normalising - Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called_______________________?
A. Tempering
B. Hardening
C. Annealing
D. Normalising - Most important property of steels for use in automobile bodies is the___________________?
A. Formability
B. Yield strength
C. Toughness
D. Resilience - Earing is a defect found in steels after the following metal working operation ?
A. Extrusion
B. Rolling
C. Deep drawing
D. Wire drawing - Laser is a device to produce___________________?
A. Gamma rays
B. Microwaves
C. A beam of white light
D. A beam of coherent light - Fahrenheit and Centigrade scales have the same readings at _____________________?
A. -55°
B. -40°
C. -33°
D. -58° - Which of the following is not an ore of copper ?
A. Cryolite
B. Azurite
C. Chalcopyrite
D. Malachite
