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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

Pick out the wrong statement ?
A Low intensity explosives are also called propellants, whereas high intensity explosive are
B Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur
C Lead azide is a popular military explosive
D TNT is a hygroscopic explosive having very high melting point and is non-toxic to human
Correct Answer: TNT is a hygroscopic explosive having very high melting point and is non-toxic to human
Addition of calcium oxide to water produces___________________?
A Exothermic heat
B Hissing sound
C Slaked lime
D All A , B. & C .
Correct Answer: All A , B. & C .
Pick out the wrong statement?
A Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
B Portland cement is made employing wet process
C Gypsum is added to Portland cement to lengthen its setting time
D None of these
Correct Answer: None of these
Bromine is used in the preparation of___________________?
A Fire extinguishing compounds
B Fire proofing agents
C Dyes and antiknock compounds
D All A , B. and C.
Correct Answer: All A , B. and C.
Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have___________________?
A High electrical insulation properties
B Sharp melting points
C Low co-efficient of thermal expansion
D Compressive strength much greater than their tensile strengths
Correct Answer: Sharp melting points
Pick out the wrong statement?
A Azoic dyes are mostly applied on cotton fabrics
B Basic dyes (e.g. amino derivatives) are applied mostly to paper
C Mordant dyes are applied mainly to wools
D None of these
Correct Answer: None of these
90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at _____________ °C ?
A < 0
B 10-30
C 250-280
D 500-600
Correct Answer: 10-30
Pick out the wrong statement pertaining to the soap manufacture?
A Transparent soaps are made by cold process
B Organic pigments are used as colouring materials in the soap manufacture
C Both laundry as well as toilet soaps are manufactured by hot process
D Colourless rosin is used in the manufacture of laundry soaps
Correct Answer: Transparent soaps are made by cold process
Pick out the wrong statement ?
A Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%
B Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%
C 75% oleum can be produced by distillation of 20% oleum
D Contact process of sulphuric acid manufacture uses nickel as the catalyst
Correct Answer: Contact process of sulphuric acid manufacture uses nickel as the catalyst
Which of the following processes is absent in glass manufacturing process ?
A Sintering
B Annealing
C Shaping or forming
D Melting
Correct Answer: Sintering
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