A. Weight
B. Number
C. Volume
D. Radius
✅ The correct answer is option B.
Basic Chemical Engineering MCQs
Main constituent of bone ash is
A. Ammonium phosphate
B. Calcium phosphate
C. Animal charcoal
D. Ammonium sulphate
✅ The correct answer is option B.
The term ‘Value’ in value engineering technique refers to the __________ cost of the product.
A. Function (utility)
B. Selling
C. Production
D. Total
✅ The correct answer is option A.
Steel produced from phosphatic iron is __________ in nature.
A. Malleable
B. Ductile
C. Brittle
D. Tough
✅ The correct answer is option C.
Even minute presence of impurities in copper impairs its electrical conductivity seriously. Electrolytic refinning of blister copper is resorted to, when
A. Cheap electricity is available
B. The precious metal content of copper is high
C. There is a demand for ultrapure (99.99%) electrolytic copper
D. All of the above
✅ The correct answer is option D.
Brinell Hardness Number (BHN) for talc is approximately in the range of
A. 1-5
B. 20-30
C. 100-150
D. 200-250
✅ The correct answer is option B.
Factor of safety is the ratio of the __________ stress to the working stress.
A. Tensile
B. Compressive
C. Yield
D. Bearing
✅ The correct answer is option C.
Which of the following is not used as a fuel in rocket propellaht ?
A. Liquid hydrogen
B. Liquid oxygen
C. Liquid hydrazine
D. Kerosene oil
✅ The correct answer is option B.
In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.
A. Percentage elongation
B. Brinell hardness
C. Tensile strength
D. All of the above
✅ The correct answer is option A.
Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with
A. Vanadium & chromium
B. Silicon
C. Tungsten
D. Manganese
✅ The correct answer is option A.