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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

Presence of silicon in steel_____________________?
A Is in the form of free Si
B Indicates that steel is not deoxidised properly
C Decreases the blow holes formation tendency in castings
D None of these
Correct Answer: Decreases the blow holes formation tendency in castings
‘Hypersil’ is a ______________ steel?
A High speed
B Silicon
C Molybdenum
D Tungsten
Correct Answer: Silicon
H2SO4 (< 50% concentration) is corrosive to_________________?
A Aluminium, mild steel, stainless steel, concrete & tin
B Copper, cast iron & high silicon iron (14% Si)
C Rubber (butyl and hard), silicone rubber & Teflon
D Glass, graphite, porcelain & stoneware
Correct Answer: Aluminium, mild steel, stainless steel, concrete & tin
Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its___________________?
A High strength to weight ratio
B Low temperature strength properties
C Its ability to be cast, rolled, forged & stamped
D High strength and corrosion & oxidation-resistance at elevated temperature
Correct Answer: High strength to weight ratio
Cast iron has____________________?
A High ductility
B High malleability
C Very high tensile strength
D Its elastic limit very close to ultimate breaking strength
Correct Answer: Its elastic limit very close to ultimate breaking strength
The most commonly used resin for making reinforced plastic is___________________?
A Unsaturated polyester
B Polypropylene
C Polyurethane
D Nylon-6
Correct Answer: Unsaturated polyester
Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is ______________________?
A Used for making axle & shafts of aeroplanes, automobiles and locomotives
B Having poor fatigue resistance
C Having poor toughness
D Not helpful in producing cleaner steel due to oxidising action of vanadium
Correct Answer: Used for making axle & shafts of aeroplanes, automobiles and locomotives
Which of the following stainless steels is non-magnetic ?
A Ferritic
B Martenistic
C Austenitic
D None of these
Correct Answer: Austenitic
Ceramic materials__________________?
A Are exemplified by clay and mica
B Are poor electrical conductors due to lack of free electrons
C Never exhibit polymorphism
D All A., B. and C.
Correct Answer: All A., B. and C.
Duralumin is an alloy of_________________?
A Aluminium, copper and manganese
B Aluminium, nickel and silicon
C Aluminium and nickel
D None of these
Correct Answer: Aluminium, copper and manganese
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