Chemical Engineering Basics Archives

The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding _______________ grinding wheel is normally used ?

The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding _______________ grinding wheel is normally used ?

A. Hard
B. Soft
C. Silicon carbide
D. Aluminium oxide

The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding _______________ grinding wheel is normally used ? Read More »

Chemical Engineering Basics

Stainless steel is welded with difficulty because of____________________?

Chemical Engineering Basics / admin

Stainless steel is welded with difficulty because of____________________?

A. Its high melting temperature
B. Chances of cracking
C. Oxide film formation
D. Chromium carbide formation

Stainless steel is welded with difficulty because of____________________? Read More »

Chemical Engineering Basics

_____________________ of grey cast iron produces white cast iron?

Chemical Engineering Basics / admin

_____________________ of grey cast iron produces white cast iron?

A. Tempering
B. Rapid heating
C. Rapid cooling
D. Slow cooling

_____________________ of grey cast iron produces white cast iron? Read More »

Chemical Engineering Basics

Sudden fall of atmospheric pressure by a large amount is an indication of the_____________________?

Chemical Engineering Basics / admin

Sudden fall of atmospheric pressure by a large amount is an indication of the_____________________?

A. Rain
B. Cold wave
C. Storm
D. Fair weather

Sudden fall of atmospheric pressure by a large amount is an indication of the_____________________? Read More »

Chemical Engineering Basics

Which of the following is not a charge material for cupola ?

Chemical Engineering Basics / admin

Which of the following is not a charge material for cupola ?

A. Limestone
B. Iron scrap
C. Iron ore
D. Pig iron

Which of the following is not a charge material for cupola ? Read More »

Chemical Engineering Basics

Transformation range for ferrous material is the temperature interval during which ___________________ is formed during its heating?

Chemical Engineering Basics / admin

Transformation range for ferrous material is the temperature interval during which ___________________ is formed during its heating?

A. Cementite
B. Austenite
C. Martensite
D. Pearlite

Transformation range for ferrous material is the temperature interval during which ___________________ is formed during its heating? Read More »

Chemical Engineering Basics

High speed steel tools retain their hardness upto a temperature of __________________ °C?

Chemical Engineering Basics / admin

High speed steel tools retain their hardness upto a temperature of __________________ °C?

A. 500
B. 750
C. 900
D. 1100

High speed steel tools retain their hardness upto a temperature of __________________ °C? Read More »

Chemical Engineering Basics

As the fluid flow rate increases, the float of the Rotameter____________________?

Chemical Engineering Basics / admin

As the fluid flow rate increases, the float of the Rotameter____________________?

A. Rises in the tube
B. Rotates at higher speed
C. Rotates at lower speed
D. Drops down in the tube

As the fluid flow rate increases, the float of the Rotameter____________________? Read More »

Chemical Engineering Basics

Which one of the following is incombustible ?

Chemical Engineering Basics / admin

Which one of the following is incombustible ?

A. H2
B. CCl4
C. C2H2
D. S

Which one of the following is incombustible ? Read More »

Chemical Engineering Basics

The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?

Chemical Engineering Basics / admin

The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?

A. 0.2
B. 0.4
C. 0.6
D. 0.8

The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ? Read More »

Chemical Engineering Basics