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CHEMICAL ENGINEERING

The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ?

CHEMICAL ENGINEERING /
The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ?

A. Cyaniding
B. Sherardizing
C. Spheroidising
D. None of these

The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ? Read More »

CHEMICAL ENGINEERING

Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________?

CHEMICAL ENGINEERING /
Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________?

A. Period increases
B. Period decreases
C. Group increases
D. Both ‘B’ & ‘C’

Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________? Read More »

CHEMICAL ENGINEERING

The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the ‘Curie point’, which is ________________ °C ?

CHEMICAL ENGINEERING /
The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the ‘Curie point’, which is ________________ °C ?

A. 768
B. 908
C. 1400
D. 1539

The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the ‘Curie point’, which is ________________ °C ? Read More »

CHEMICAL ENGINEERING