Tempering of steel is done to make it_________________?
A. Brittle
B. Hard
C. Rollable
D. Soft
Materials and Construction
Hydrochloric acid absorber in made of___________________?
Hydrochloric acid absorber in made of___________________?
A. Cast iron
B. Mild steel
C. Karbate
D. Stainless steel
Most suitable material for high pressure vessel operating at 500 atm. and 500° C is__________________?
Most suitable material for high pressure vessel operating at 500 atm. and 500° C is__________________?
A. Molybdenum stainless steel
B. 18/8 stainless steel
C. Mild steel
D. High silicon iron (14% Si)
Metalloid is__________________?
Metalloid is__________________?
A. Highly electronegative in nature
B. An element which exhibits the properties of both metal & non-metal
C. An alloy
D. All A., B. and C.
The ability of a material to offer resistance to scratching or indentation is a measure of its_________________?
The ability of a material to offer resistance to scratching or indentation is a measure of its_________________?
A. Brittleness
B. Toughness
C. Hardness
D. Resilience
In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of _______________?
In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of _______________?
A. Concrete
B. Wood
C. Steel
D. Porcelain
A magnetic material becomes ____________ above the Curie temperature?
A magnetic material becomes ____________ above the Curie temperature?
A. Ferromagnetic
B. Diamagnetic
C. Paramagnetic
D. None of these
Common house hold glass (i.e., soda-lime glass) is a/an _____________ material?
Common house hold glass (i.e., soda-lime glass) is a/an _____________ material?
A. Fully crystalline
B. Partly crystalline
C. Amorphous
D. None of these
Carbon content in plain carbon steel is ______________ percent?
Carbon content in plain carbon steel is ______________ percent?
A. 0.1 to 0.15
B. 0.35 to 0.45
C. 0.65 to 0.80
D. 0.85 to 1.2
For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is__________________?
For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is__________________?
A. Stainless steel
B. Cast iron
C. Aluminium
D. Nickel