ارجو المساعدة في الحصول علي اجوبة لهذه الاسئلة بخصوص امتحان مقابلة مهندس تكييف

إنضم
10 سبتمبر 2008
المشاركات
57
مجموع الإعجابات
5
النقاط
0
ارجو من اخواني مساعدتي في الحصول علي اجابة لهذا الامتحان الخاص بمقابلة مهندس تكييف

1) Please write down the abbreviation for following technical terms
a) B.O.D
……….………...…………
f) AD
……….……….…….…..………
b) SMACNA
……….………...…………
g) SAD
……….……….…….…..………
c) DW142
……….………...…………
h) SAR
……….……….…….…..………
d) FD
……….………...…………
i) RAG
……….……….…….…..………
e) VCD
……….………...…………
j) FAI
……….……….…….…..………

2) For supporting horizontal ducts, what size of threaded rod, steel Angle you will use and
what will be the spacing between supports …?….
Duct Size
Threaded Rod Diameter (mm)
M.S. Sheet Angle size (mm)
Max. spacing between supports
Upto 400mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter
400 to 600mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter
600 to 1000mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter
1000 to 1500mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter

3) What thickness of GI sheet you will use for following duct sizes …?….
a) Ducts with max. size
1000 upto 1500 mm
………..mm
(………….G)
b) Ducts with max. size
800 upto 1000 mm
………..mm
(………….G)
c) Ducts with max. size
600 upto 800 mm
………..mm
(………….G)
d) Ducts with max. size
upto 600 mm
………..mm
(………….G)

4) What minimum gauge / thickness of sheet you will use for kitchen exhaust ductwork …?…
a) 24 G
b) 18 G
c) 22 G
d) 20 G




5) Curtain type Fire damper will not have one of the following …?….
a) Actuator
b) Fuse link
c) Latching device
d) Spring clip


6) Minimum size of Access Panel acceptable for use …?….
a) 0.12 sq.m
b) 0.20 sq.m
c) 0.5 sq.m
d) 0.35 sq.m

7) Why duct insulation has to be vapour tight …?….
a) To look good
b) To avoid condensation
c) To do cladding

8) What is the recommended distance to be mentioned between two “duct pins” for insulation?
a) 200 mm
b) 400 mm
c) 300 mm
d) 500 mm

9) If the duct size is not more that 400 mm wide, you will use Adhesive or Duct pin to fix
insulation board …?….
a) Both
b) Only duct pin
c) Only adhesive
d) None

10) What gauge of Aluminium sheet you will use for cladding …?….
a) 0.8 mm
b) 0.6 mm
c) 1 mm
d) 1.2 mm

11) Longitudinal edges of ducts shall be closed using …?….
a) Pittsburg lock
b) Double seam
c) C Cleat
d) S Cleat

12) Transverse joints of two ducts are joined by combination of …?….
a) Pittsburg lock
b) C & S Cleat
c) C Cleat
d) S Cleat

13) What thickness of fibreglass slab insulation board of 48 Kg / m[SUP]3 [/SUP], you will use for
outdoor / exposed ducts…?….
a) 50 mm
b) 65 mm
c) 100 mm
d) 250 mm

14) What material is generally used for kitchen exhaust ducting …?….
a) G.I
b) Stainless steel
c) Black steel
d) Carbon steel

15) What thickness of Aluminium filters are used for Fresh Air Louver …?….
a) 15 mm
b) 50 mm
c) 25 mm
d) 100 mm

16) 2 way control valves for FCU and AHU should be installed…
a) upstream of equip
b) Downstream of equip
c) In bypass

17) Chilled water pump capacity should be sized
a) Equal to chiller flow rate
b) 110% of Chiller flow rate
c) 120% of Chiller flow rate

18) Please match the correct answers on psychometrics
a. Dew Point Temp. Change of state due to heat
b. Sensible Heat Measure of heat content
c. Latent Heat Moisture will start to condense from air
d. Enthalpy Change / rise in temperature due to heat

19) Why Grade A ASTM Standard pipe to A53 and A106 are generally not used in HVAC application
a) High cost
b) High Tensile strength
c) Low tensile strength

20) Please match the correct answers for Chilled water piping system
a. Minimum pipe velocity 4 Ft / 100 Ft
b. Maximum pressure drop 1.5 FPS
c. Δ T for Chilled water 100 Psi
d. Minimum pipe testing pressure 10 – 20[SUP]o[/SUP] F

1) Please write down the abbreviation for following technical terms
a) B.O.D
……….………...…………
f) AD
……….……….…….…..………
b) SMACNA
……….………...…………
g) SAD
……….……….…….…..………
c) DW142
……….………...…………
h) SAR
……….……….…….…..………
d) FD
……….………...…………
i) RAG
……….……….…….…..………
e) VCD
……….………...…………
j) FAI
……….……….…….…..………

2) For supporting horizontal ducts, what size of threaded rod, steel Angle you will use and
what will be the spacing between supports …?….
Duct Size
Threaded Rod Diameter (mm)
M.S. Sheet Angle size (mm)
Max. spacing between supports
Upto 400mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter
400 to 600mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter
600 to 1000mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter
1000 to 1500mm
………mm Ø
…..…. x …...…. x .….…
…………….Meter

3) What thickness of GI sheet you will use for following duct sizes …?….
a) Ducts with max. size
1000 upto 1500 mm
………..mm
(………….G)
b) Ducts with max. size
800 upto 1000 mm
………..mm
(………….G)
c) Ducts with max. size
600 upto 800 mm
………..mm
(………….G)
d) Ducts with max. size
upto 600 mm
………..mm
(………….G)

4) What minimum gauge / thickness of sheet you will use for kitchen exhaust ductwork …?…
a) 24 G
b) 18 G
c) 22 G
d) 20 G




5) Curtain type Fire damper will not have one of the following …?….
a) Actuator
b) Fuse link
c) Latching device
d) Spring clip


6) Minimum size of Access Panel acceptable for use …?….
a) 0.12 sq.m
b) 0.20 sq.m
c) 0.5 sq.m
d) 0.35 sq.m

7) Why duct insulation has to be vapour tight …?….
a) To look good
b) To avoid condensation
c) To do cladding

8) What is the recommended distance to be mentioned between two “duct pins” for insulation?
a) 200 mm
b) 400 mm
c) 300 mm
d) 500 mm

9) If the duct size is not more that 400 mm wide, you will use Adhesive or Duct pin to fix
insulation board …?….
a) Both
b) Only duct pin
c) Only adhesive
d) None

10) What gauge of Aluminium sheet you will use for cladding …?….
a) 0.8 mm
b) 0.6 mm
c) 1 mm
d) 1.2 mm

11) Longitudinal edges of ducts shall be closed using …?….
a) Pittsburg lock
b) Double seam
c) C Cleat
d) S Cleat

12) Transverse joints of two ducts are joined by combination of …?….
a) Pittsburg lock
b) C & S Cleat
c) C Cleat
d) S Cleat

13) What thickness of fibreglass slab insulation board of 48 Kg / m[SUP]3 [/SUP], you will use for
outdoor / exposed ducts…?….
a) 50 mm
b) 65 mm
c) 100 mm
d) 250 mm

14) What material is generally used for kitchen exhaust ducting …?….
a) G.I
b) Stainless steel
c) Black steel
d) Carbon steel

15) What thickness of Aluminium filters are used for Fresh Air Louver …?….
a) 15 mm
b) 50 mm
c) 25 mm
d) 100 mm

16) 2 way control valves for FCU and AHU should be installed…
a) upstream of equip
b) Downstream of equip
c) In bypass

17) Chilled water pump capacity should be sized
a) Equal to chiller flow rate
b) 110% of Chiller flow rate
c) 120% of Chiller flow rate

18) Please match the correct answers on psychometrics
a. Dew Point Temp. Change of state due to heat
b. Sensible Heat Measure of heat content
c. Latent Heat Moisture will start to condense from air
d. Enthalpy Change / rise in temperature due to heat

19) Why Grade A ASTM Standard pipe to A53 and A106 are generally not used in HVAC application
a) High cost
b) High Tensile strength
c) Low tensile strength

20) Please match the correct answers for Chilled water piping system
a. Minimum pipe velocity 4 Ft / 100 Ft
b. Maximum pressure drop 1.5 FPS
c. Δ T for Chilled water 100 Psi
d. Minimum pipe testing pressure 10 – 20[SUP]o[/SUP] F
 

aati badri

عضو جديد
إنضم
15 فبراير 2010
المشاركات
6,159
مجموع الإعجابات
884
النقاط
0
اولا ارجو حذف التكرار
ثانيا تبدا اقرا اسماكنا
وسوف اعود
 

aati badri

عضو جديد
إنضم
15 فبراير 2010
المشاركات
6,159
مجموع الإعجابات
884
النقاط
0
smacna=

SHEET METAL AND AIR CONDITIONING CONTRACTORS’
NATIONAL ASSOCIATION, INC.
 

aati badri

عضو جديد
إنضم
15 فبراير 2010
المشاركات
6,159
مجموع الإعجابات
884
النقاط
0
ارجو من اخواني مساعدتي في الحصول علي اجابة لهذا الامتحان الخاص بمقابلة مهندس تكييف

1) Please write down the abbreviation for following technical terms
a) B.O.D
……….………...…………botom of duct
f) AD
……….……….…….…..…air duct……
b) SMACNA
……….………...……SHEET METAL AND AIR CONDITIONING CONTRACTORS’
NATIONAL ASSOCIATION, INC. ……
g) SAD
……….……….…….…..………suply air diffuser
c) DW142
……….………...…………
h) SAR
……….……….…….…..supply air register………
d) FD
……….………...……fire damper……
i) RAG
……….……….…….…..………return air grill
e) VCD
……….………...…………volume control damper
j) FAI
……….……….…….…..………
 
إنضم
10 سبتمبر 2008
المشاركات
57
مجموع الإعجابات
5
النقاط
0
شكرا الي اخواني الذين قامو بالرد والاجابة علي السؤال الاول وانتظر اجابة باقي الاسئلة وفققكم الله
 

nofal

عضو معروف
إنضم
12 مايو 2005
المشاركات
2,302
مجموع الإعجابات
101
النقاط
63
أجوبة 7هى b
13 هى a
16 هى a
17 هى a
 

nofal

عضو معروف
إنضم
12 مايو 2005
المشاركات
2,302
مجموع الإعجابات
101
النقاط
63
أجوبة18. Dew Point Temp will start to condense from air
Sensible Heatrise in temperature due to heat
Latent Heat Moisture Change of state due to heat
. Enthalpy Measure of heat content
 

nofal

عضو معروف
إنضم
12 مايو 2005
المشاركات
2,302
مجموع الإعجابات
101
النقاط
63
جواب 20 Minimum pipe velocity 1.5 FPS
Maximum pressure drop 4 Ft / 100 Ft
20o F Δ T for Chilled water 10-
Minimum pipe testing pressure 100 Psi
 

nofal

عضو معروف
إنضم
12 مايو 2005
المشاركات
2,302
مجموع الإعجابات
101
النقاط
63
جواب 3 20
22
24
24
 

nofal

عضو معروف
إنضم
12 مايو 2005
المشاركات
2,302
مجموع الإعجابات
101
النقاط
63
جواب 2 m 2.4 40*40*3 10mm
m 2.4 40*40*3 10mm
m1.8 40*40*3 10mm

m1.8 50*50*3 13mm
 
إنضم
10 سبتمبر 2008
المشاركات
57
مجموع الإعجابات
5
النقاط
0
الف شكر لكم جميعا وبالاخص الاخ nofal لمجهوده واتمني ان احصل علي اجابة باقي الاسئلة وهي ( 9 - 10 - 11 - 12 - 14 - 15 - 19 )
 
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