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, CONFIDENTIAL

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I]NIVERSITI TIJN HUSSEIN OITN MALAYSIA

FINAL EXAMINATION
SEMESTER II
sEsr 201212013

COURSENAME BUILDING SERVICES N

COURSE CODE BFB 4073 / BFB 40703

PROGRAMME 4 BFF

EXAMINATION DATE JttNE 2013

DURATION 3 HOURS

INSTRUCTION ANSWER ALL QUESTIONS

THIS PAPER CONSISTS OF TEN (IO) PACES

CONFIDENTIAL

eflect€d sound Dalh. Demonstrate and illustrate to him all th€ characigrs of building and acoustic system that he needs to consider in order fo. Define briefly: D souno ptessllle iD sound wavelength (4 madG) O) Differ€ntiate b€twe€n direct sound path and . Raja is plaining to develop a rEcording studio and wo. him to get a good acoustic studio. their reverberation time. ple3se propos€ solutions for both studios to achieve I .ev€rberation time. (6 narks) (c) Pleas€ illusFate sound wave at various velocities. appendix. The reading for studio A is 0. The total sound level for these thrce insfuments is l20dB. Analys€ the estimat€d sound level if violin is turded off while piano and guilar ar€ tumed en2 q"1".0s. (4 ma*s) O) 'Anechoic chambers. violin and guitar. (5 ma*s) Q2 (a) Noise is an undesirEd sound or also known as a pollutant to th€ rcc€iver. (4 ma*s) (d) Philharmonic Hall consist ofthre€ soud sources. He is very ke€n in appointing you as the Ac_oustic Consultant Engine€r to design the studio. BFB. one roof The workshop is fully equipped with all the machines and tools beside his prcmise. (6 ma*s) . It may consist of a single pure tone but in most cases contains many tones at different fiequencies and intensities.$NB Ql (4.{O7YBFB. (4 msrks) (c) Mr. Its physical and emotional efects are dilficult to define quantitatively but the noise level its€lf carl be measured. the total sound level is I l7dB.kshop unde. List four (4) b6sic principles ofnoise control. are commonly us€d in acoustics to conduct experiments. Please provide funher explanarion on this tem. which arc ftom piano.2s and for studio B is 2. (6 msrks) (e) Two recording studios in RTM Johor have a different level of.0s fo. When the sound fiom piano is hrned off. Violin and guitar contribute the same amount ofsound level.

you are required to demonstrate and illustrate how a hall such as philharmonic Hall in KLCC can apply the acoustical conc€pt. (10 ma. Howevet it does have some disadvantages.bome noise. ptease provide your slggestion and explanation on your suggestions. BrB. which come from a window? (3 marks) Q4 (a) A client r€quires advic€s in s€lecting two diff€rent lamp typeg eilher fluores€ent or incandescent light bulb to b€ used in hivher buitding. Explain thrce (3) disadvantages of using large windows fo. €nergy" efficient lighting system. (12 marks) (b) What is a definition ofdaylight? ( I mark) (c) Large glazed areas may provide suflici€nt day lighting at som€ distance inro the building. Propose and explain four (4) key strategies fo.ruption. (9 marks) (d) What arc the strategies that can be done in improving the amount of light available. including its advafiages and disadvantages. (4 marks) (e) Briefly explain tlro (2) stEps to conhol an open sp6c€ sound inte. offic€ buildings. (3 ma*s) Q3 (a) You are appointed by a client to design 6 lighting system for an offic€ block in Damarsom Damai.ks) . (4 marks) (0 Sound can b€ conholled to keep pleasure and harmonic condition.{173/BIB{)71):t (d) Diff€r€ntiatc b€twe€n airtome noise and structure.

ies a. The assunption made for mainisnanc€ factor is 0. This office has a white c€iling and light bfown coloured walls.5m high. The value for electric cunent for each luminaire is 100W.e selected to be used in this case.75m above the floor. ( I5 ma*s) -END OF QUESTTON- . As an appointed enginoer. The working plane is 0. BfB.5. please estimate the maximum distanc€ between luminaries if the spacing to height ratio (SHR) is 1.. New Streamlite double fluorescent lamp lumina.{)TtBFB.|)7(B (b) The dimension ofthe drawing office is l7m x l2m and 3.9. Refer appendix. ln addition. pleas€ caloulate the numb€r of luminaries needed and determine the electrical consumption of the lighting system.

an dan ciri-ciri akustik yang perlu ada dalam mendapatkan prestasi bangunan yang terbaik.sebelahan dengan studio mkarnan dan dipenuhi dengan mesin dan alatan. S€naraikan eEpet (4) prinsip asas pengawalan bunyi (4 ma*8h) (b) "Anechoio chamb€rs" selalu digunakan bagi menjalankan ujian akustik.O73/BFB.gi violin dan girar adalah sama jumlahnya anrara satu sama lain. Dia berbesar hari untuk melartik anda s€bagai juruteE perunding dalam bidang akustik untuk mer€kabentuK bangunan-bangunan ters€but.rcflected soud path'. menjadi ll7dB.2saat dan bilik B 2.b€zaan di antara "direct sound path" dan '. (6 ma*ah) (c) Lal@*an gelombang bunyi pada kelajuan yang berbeza? (4 ma*ah) (d) Dewan Filharmonik mengandungitiga suftber bunyiyang dihasilkan daripada piano. la juga sukar diuku.teverberation time" yary berbezs. jumlah intensiti bunyi bertuka. Berikan gamba. violi4 dan gitar s€rta menghasilk n jumlah intensiti bunl sebanyak l20dB. SaranlGn cara agar keduadua bilik berkenaan mendapat bacaan l. (4 rnarkah) (c) Mr.Bilik A mencatatkim bacaan o. Raja tclah membuat pilihan untuk membangunkrn studio rakaman dan sebuah bengkel. (5 ina*ah) (a) Bunyi bising merupakan bunyi yang tidak dikehendaki d8n boleh dikatakan s€bagai p€ncemaran bunyi kepada pendengar. Analisa aggaran intcnsiti bunyi ketika violin dimatikan manak la piano dan girar dihidupkan? (6 narkah) (e) Dua bilik rakaman di RTM Johor mempunyai bacaan .0sa6t. s€cara kuantitatif akan sifat fzikal atau kesan emosi tebpi jumlah bunyi bising tersebut dapat diukur. Intensiti bunyi b. Terangkan akan keadaan ini. Bengkel teFebut b€. BFB. .IO7O3 Sl (a) Definasik n secsra ringkas: i) tekanan bunyi ii) gclombang buyi (4 markah) (b) Tenngkan p€. Ia boleh mengandungi I ton atau banyak dengan berbeza iiekuensi dtn intensity. Apabila bunyi yang dihosilkan oleh piano dimatikan..osaat bagi bacaao "reveabq-ation time" atau dikenali sebagai masa gerna.

Cadang dan terangkar enpat (4) strat€gi utama dalam m€ncapai pencahayaan menggunakan tenaga secaB efisy€n. BFB4O73/BFB. Waleu bagaimanapun. Berikan cadangan dan penerangan bagi pemilihan tersebut bersama kebaikan dan kebuukan bagi jenis lampu yang dipilih.kah) (d) Nyatakan perbezaan di antara "airbome noise" dan "slrucfure-bome noise". . (4 markah) (e) Terangkar s€caB ringkas du. iaitu jenis "fluorcsc€nt" atau "inc€ndesc€nt light bulb" untuk diguakan dalan bangunan beliau.O7OJ (6 ma. ia juga mempunyai bebemps kelemahan. (3 ma*ah) s3 (a) Anda dilantik oleh pihak klien untuk merek bentuk system pencahayaan bagi sebuah ruang pejab@t di Damansara Damai. (4 markah) (f) Bunyi boleh dikawal bagi mengekalkan keharmonian di sesuatu tempat. Terangkan tigr (3) kelemahan menggunakan c€rmin yang besar bagi sesebuah bangunan pejabat.. Kawasan kerja adalah 0.75m dari aras lantai. (10 markah) b) S€buah pejabat lukisan bersaiz l7m x l2m dan tinggi sebanyak 3.5n mempunyai siling berwarna putih dan dinding yang dicat dengan wama perang cair.kah) (c. Permukaan berkaca yang luas mungkin dapat menbekalkan cahaya ke dalan bangunan. (9 markah) (d) Bagaimanakal anda boleh rneningkatkan jumlah cahaya yang masuk melalui tingkap ke dalam bangunan? (3 markah) v (a) Seorang klien merninta nasihat anda dalam membuat pernilihan di antara dua jenis lampu. ( l2 markah) (b) Apakah definasi bagi "daylight"? (1 ma. Mentol jenis "SE€arnlite double fluorescent" yang baru telah dipilih untuk digunakan dalam kes ini. (2) cjt"a mengalasi gangguan yang disebabkat oleh ruang terbuka. Anda dikehendaki menggaftbarkan bagaimana dewan seperti Filharmonik di KLCC dapat mengsplikasikan konsep akustik.

BFB4O r'BFB4O?O:} Andaian yang dibuat bagi factor penyclenggaraan ialah 0. Scbagai seorang jurutera ydng dilantilq kirs jumlah pencahayaal yang diperlukan dan jumlah tenaga elektrik yang digunakan.5. (15 lnalkah) -SOALAI\I TAMAT- . Kemudiar! anggarkan jarak malsimum di antan mentol jika nisbah jar&k k€ tinggi (SHR) ialah 1.Nilai arus elekaik bagi setiap mentol ialah 100W.9.

(<lat Background Noise Correction E 't0 6. A i: 5 BFn ol Ed 0 1 2 3 4 5 6 7 I 9 10 DilErencs Beivefi Totd Ndss L€vel atd Bactorcr'd Ndse .- a !r \ \ I 2315a?a ctltt . BFB{7!/BFB4O7II} APPEN'DIX FINAL DL{UINATION SEMESTER/SESSION: SEMESTER I 201212013 PROGRAMME : 4 BFF COURSE : BUILDING SERVICE II SUBJECT CODE: BFB4073 / BFB 40703 Addirional of Sound Table and Background Nois€ Correction E "'t 5. \ \ *.r.-G. l-n r--6 iwo L-v.

2 Suburbin strc ct liEhtirg 5 DFcliag 50 .k with 6mall detail 900 . 150 Corridors 100 Gracral oEcee 400 Dra*iog oEcc 600 Prolongcd t .O la t. BFB4OTJ / BFB4O7O3 APPENDX FINAL EXAMINATION SEMESTER.atioD Illnhipalr./SESSION: SEMESTER I 2OI2'OI3 PROGRAMME :4BFF COURSE : BUILDINC SERVICE II SUBJECT CODE : BFMO73 / BFB 40703 Additional of Reverberation Time Table Room voluh€ (tt3 x rooo) 22 2.0 tO 20 200 250 RmD vorume (mr x roo) Typical value of illuminance -!pli.6 4.e lltrr) Eaergcncy Lightiag 0.O 6.8 & o.2 e lo o.

Cream 70 . factors for a bar€ fluorescent tube fitting with two 5t W 1500 mm lamDs (%) Roohhd.00 10 50 48 53 59 a4 1l ?5 79 63 EO m 30 40 46 5l 5't 6 69 13 7E a2 70 t0 35 40 46 5t 59 646a74 .OO 2.IE 50 50 43 4a 52 5't 63 67 70 71 't6 50 30 nll 5t 57 62 65 70 50 t0 42 46 53 56 61 6'l 7) 30 50 39 12 46 50 55 59 6t 65 61 30 30 31 t7 a2 16 5l 55 5A 62 65 30 l0 30 33 36 12 4A 52 55 59 62 t0 .75 1.00 t25 t. BFB4073 / BF840703 APPEIIDIX FINAL EXAMINAfiON SEMESTER/SESSION: SEMESTER I 20122013 PROGRAMME : 4 BFF COURSE : BUILDING SERVICE ll SUBJECT CODE: BFB4073 / BFB 40703 Luminance factoas for painted surfaces Lumiratce fadors br painted surbces gurtacar typtcirt Colotr Lun{nrtFt Fac{oa5 Cei[rE \^rl*le. 80 C€fing Skyeue 50_60 CeilirE Ligm8rown 2O_3O UAlh LEm$dE 50-60 \ dls oark crey 20 _{ ha||s Blaci( 10 Floor 10 Utilizatio.r Ccilrs W.ll 0.5 2.50 300 4.00 5.