ENADE Engenharia Química Practice Questions - ENADE Engenharia Química - Exame Nacional de Desempenho dos Estudantes Exam - ENADE Engenharia Química Practice Questions - ENADE Engenharia Química - Exame Nacional de Desempenho dos Estudantes Exam

Question 1

Under Federal Law No. 5,194/1966 and CONFEA Resolution No. 1,025/2009, which document must a Chemical Engineer legally issue before starting any technical service, design project, or industrial consulting in Brazil to establish legal and civil responsibility?

Anotação de Responsabilidade Técnica (ART) Certificado de Conformidade Ambiental (CCA) Laudo de Vistoria e Inspeção Predial (LVIP) Relatório de Impacto sobre o Meio Ambiente (RIMA)

Correct Answer:

Anotação de Responsabilidade Técnica (ART)

Question 2

In a chemical process Hazard and Operability (HAZOP) study of an exothermic batch polymerization reactor, the study team applies the guide word 'MORE' to the parameter 'TEMPERATURE'. Which deviation and potential consequence are being evaluated?

Excessive temperature in the reactor, potentially triggering a thermal runaway reaction and overpressurization. Lower coolant flow rate resulting in complete freezing of the cooling jacket fluid. Reverse flow of initiator from the feed manifold back into the monomer storage vessel. Phase separation of monomer and polymer due to insufficient mechanical agitation.

Correct Answer:

Excessive temperature in the reactor, potentially triggering a thermal runaway reaction and overpressurization.

Question 3

A chemical synthesis produces 1 mole of target product C (molar mass = 120 g/mol) from 1 mole of reactant A (molar mass = 100 g/mol) and 1 mole of reactant B (molar mass = 60 g/mol), generating 1 mole of byproduct D (molar mass = 40 g/mol). What is the theoretical atom economy (AE) of this reaction?

75.0% 66.7% 80.0% 33.3%

Correct Answer:

75.0%

Question 4

In a biological wastewater treatment plant utilizing the conventional activated sludge process, which operational parameter directly controls the active microbial population age and nitrification performance?

Sludge Retention Time (SRT) or Mean Cell Residence Time (theta_c) Hydraulic Retention Time (HRT) in the primary clarifier only Dissolved oxygen saturation pressure in the air compressor manifold Chlorine dosage in the final disinfection contact basin

Correct Answer:

Sludge Retention Time (SRT) or Mean Cell Residence Time (theta_c)

Question 5

Under Brazilian environmental regulation CONAMA Resolution No. 430/2011, which condition must industrial wastewater effluents satisfy before direct discharge into receiving water bodies?

Effluent pH must be maintained between 5.0 and 9.0, and temperature must not raise the receiving body by more than 3 °C outside the mixing zone. Effluent must possess zero Chemical Oxygen Demand (COD = 0 mg/L) regardless of dilution. Total dissolved solids must be completely removed by thermal evaporation to dry salt cake. Effluent must be diluted with at least 10 volumes of municipal drinking water prior to discharge.

Correct Answer:

Effluent pH must be maintained between 5.0 and 9.0, and temperature must not raise the receiving body by more than 3 °C outside the mixing zone.

Question 1

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Prepare with the ENADE Engenharia Química Practice Questions - ENADE Engenharia Química - Exame Nacional de Desempenho dos Estudantes Exam practice quiz. This question bank includes 100 questions covering water, heat, pressure, stream, and rate. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ENADE Engenharia Química Practice Questions - ENADE Engenharia Química - Exame Nacional de Desempenho dos Estudantes Exam

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ENADE Engenharia Química Practice Questions - ENADE Engenharia Química - Exame Nacional de Desempenho dos Estudantes Exam

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