Title BASIC KNOWLEDGE OF HAZARDOUS CHEMICALS CH3201, WT2201.pdf ✅

THIS PAPER CONSISTS OF 6 PRINTED PAGES (INCLUDING THE COVER PAGE) AND 1 BLANK PAGE. CH3201 / WT2201 BASIC KNOWLEDGE OF HAZARDOUS CHEMICALS TIME ALLOWED: 2 HOURS END-OF-SEMESTER EXAMINATION (FORMAL) SEMESTER 2, 2022-23 SCHOOL OF PETROCHEMICAL INSTRUCTIONS TO CANDIDATES: ● DO NOT TURN OVER THE PAGE UNTIL YOU ARE TOLD TO DO SO. ● Write down the details required on the front cover of the answer booklet provided. ● Answer FIVE (5) OUT OF SEVEN (7) questions. ● The total mark for this paper is 100. The number of marks for each question or part question is shown in brackets. ● This examination paper, your answer booklets and any other paper used in the examination must be handed in to the invigilators before leaving the room or hall. ● Write in dark blue or black ink pen. MATERIALS SUPPLIED: Answer booklet (1), Periodic Table (1). MATERIALS PERMITTED: Calculator.

CH3201 / WT2201 (FORMAL) SEMESTER 2, 2022-23 © POLITEKNIK BRUNEI 3 Figure 1.0. A chemical label. (i) Identify the name of the chemical. [1 mark] (ii) Identify the signal word for this chemical. [1 mark] (iii) State the number of hazard statements given on the label. [1 mark] (iv) State the number of precautionary statements given on the label. [1 mark] (v) Identify the manufacturer of this chemical. [1 mark] (vi) Provide four (4) additional information shown on this label that are not required by the GHS standard. [4 marks] (vii) Determine whether this labelling is GHS compliant. [1 mark] QUESTION 3 [Total marks: 20] a) All chemicals used in the laboratory must have a COSHH risk assessment before being put to use. (i) State what the acronym COSHH stands for. [1 mark] (ii) Identify seven (7) important elements that should be included in a COSHH risk assessment form. [7 marks] 3 [ Turn over
CH3201 / WT2201 (FORMAL) SEMESTER 2, 2022-23 © POLITEKNIK BRUNEI 4 b) List four (4) different types of laboratories. [4 marks] c) Explain briefly the responsibilities of lab employees or students in a laboratory for chemical safety management according to Workplace Safety and Health Order, WSHO (2009). Provide at least eight (8) points. [8 marks] QUESTION 4 [Total marks: 20] a) For each of the following hazard classes of chemicals, state one (1) incompatible hazard class. i) Flammable, compressed gases [1 mark] ii) Acid (Corrosives) [1 mark] b) Explain how incompatible chemicals should be segregated when stored in a warehouse. Include at least ten (10) points. [10 marks] c) There are four (4) levels in the hierarchy of control which can be implemented to ensure safe plant operations. List down all four (4) levels of control and suggest three (3) control measures under the second most effective level of control [8 marks] QUESTION 5 [Total marks: 20] a) Justify the reason why the transport of hazardous chemicals has to be regulated by statutory legislation. [6 marks] b) Describe the general safety requirements that need to be addressed for all modes of transportation. Include at least six (6) points. [6 marks] c) Name one (1) example of a regulation for the air transportation of hazardous substances. [1 mark] d) State the purpose of a placard. [1 mark]