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-5-           02165032/CAPE/MS/SPEC

                            GREEN ENGINEERING
                            UNIT 1 - Paper 032

                                  MARK SCHEME
                               SPECIMEN PAPER

Question         Syllabus            Suggested Response           Mark       Marks
                 Objective                                       Alloca  KC AK PS
                                 Pollution
                            v. The rooms in the building          tion

                                      should not be cooled to
                                      the coolest temperature;
                                      it should be moderated
                                      using proximity and/or
                                      occupancy sensors where
                                      the AC unit is only used
                                      when the room is
                                      occupied.

                            Carbon footprint

                            vi. The facility should

                            utilize a solar water

                            heater for instead of an

                            electrical water heating

                            system. This will reduce

                            the energy consumption

                            for the facility and

                            capitalize on the

                            tropical climate and

                            relatively warm Caribbean

                            days.

3. Solutions     Unit 1,    i. Use lighter colours to            Any
                 Module 2
     for         Spec       ensure that less energy THREE,
     inefficien  Objective
     cies based  1          is used in the building 3                    9
     on green
     engineerin             for cooling the facility. marks
     g
     principles             Green engineering                    EACH
     .
                            principle is Prevention

                            instead of treatment.

                            Prevent or minimize the

                            need for cooling the

                            facility.

                            ii. Blinds or window curtains
                                      should be opened and
                                      artificial light usage
                                      discontinued. Usage of
                                      artificial lights drives
                                      up the cost for
                                      electricity for the
                                      facility. This will allow
                                      the building to
                                      capitalize on the green
                                      engineering principle of
                                      maximizing efficiency

                            iii. The rooms in the building
                                      should not be cooled to
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