5651. Persons working in cement plants and limestone quarries are more prone to disease like
Cancer
Asthma
Silicosis
Flourosis (bone disease)
✅ The correct answer is option C.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
5652. Exposure to small amount of __________ results in high blood pressure & heart disease in human beings.
Hydrogen sulphide
Mercury
Cadmium
Asbestos
✅ The correct answer is option C.
5653. Main pollutants released from iron & steel industry is
CO, CO₂ & SO₂
H₂S, NO & SO₃
CO₂, H₂S & NO₂
SO₃, NO₂ & CO₂
✅ The correct answer is option A.
5654. Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is
Inversely proportional to viscosity of gas
Proportional to the viscosity & density of the gas
Proportional to the pressure of the gas
Both B and C
✅ The correct answer is option D.
5655. Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes
Asphyxiation (suffocation)
Shortness of breath
Tuberculosis
All of the above
✅ The correct answer is option D.
5656. The common pollutant generated in chlor-alkali industry and battery manufacture is
Mercury
Brine
Phosphate
None of these
✅ The correct answer is option A.
5657. Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).
1-Feb
5-Oct
15-20
25-30
✅ The correct answer is option B.
5658. Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of
Ozone and iodine
Chlorine or its compounds
Ultraviolet light for irradiation of water
All of the above
✅ The correct answer is option D.
5659. Inhalation of silica dust causes a disease called
Bronchitis
Silicosis
Pneumoconiosis
None of these
✅ The correct answer is option B.
5660. Removal of __________ is accomplished by aeration of water.
Dissolved gases
Suspended solids
Dissolved solids
None of these
✅ The correct answer is option A.