M C Q s D r i v e

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.

The noble metals________________?
A Are exemplified by Na, K and Li
B Do not resist corrosion very strongly
C Are the lowermost in the electro-chemical series of metals
D None of these
Correct Answer: Are the lowermost in the electro-chemical series of metals
Which of the following is the most suitable abrasive for grinding high tensile strength materials ?
A Silicon carbide
B Corundum
C Aluminium oxide
D Boron carbide
Correct Answer: Aluminium oxide
The majority charge carriers in p-type silicon are______________________?
A Free electrons
B Ions
C Conduction electrons
D Holes
Correct Answer: Holes
Quartz is a ________________ material ?
A Diamagnetic
B Ferromagnetic
C Ferroelectric
D Piezoelectric
Correct Answer: Piezoelectric
Force between the molecules of the same substance is called ______________________ force?
A Adhesive
B Cohesive
C Molecular
D Vander Walls
Correct Answer: Cohesive
Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of__________________?
A 1 : 1
B 1 : 2
C 2 : 1
D 1 : 4
Correct Answer: 1 : 1
Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of _______________ gms of zinc per m2 of steel strip ?
A 5-10
B 1000-1500
C 120-500
D 1500-3000
Correct Answer: 120-500
The highest stress that a material can withstand for a specified length of time without excessive deformation is called the ____________ strength ?
A Creep
B Endurance
C Fatigue
D None of these
Correct Answer: Creep
________________ is a special constituent of chlorophyll without which photosynthesis is not possible ?
A Calcium
B Nitrogen
C Phosphorous
D Hydrogen
Correct Answer: Nitrogen
In TIG welding, thoriated tungsten electrodes are used, because it ____________________?
A Has higher current carrying capacity
B Has better electron emissivity
C Is stronger than ordinary tungsten
D Is easy to prepare
Correct Answer: Has better electron emissivity