Curriculum · Web viewCV = SV CR-1 = 498, 76 8.5-1 = 66,50 cm3 1.2.3 New bore diameter: Compression...

7
Province of the EASTERN CAPE EDUCATION DIRECTORATE SENIOR CURRICULUM MANAGEMENT (SEN- FET) HOME SCHOOLING SELF-STUDY WORKSHEET ANSWER SHEET SUBJECT AUTOMOTIVE GRADE DATE APRIL 2020 WK 3 TOPIC FORCES: MEMORANDUM TERM 1 REVISION (Please tick) TERM 2 CONTENT (√) QUESTION 1 Define the term compression ratio of an engine. The bore and stroke of an engine is 84 mm and 90 mm respectively and they have a compression ratio of 8,5 : 1. Calculate: a) The swept volume b) The original clearance volume in cm3 c) The compression ratio is increased to 9,5: 1. What would be the new bore diameter, if the clearance volume remains unchanged? SOLUTION: Compression Ratio 1.1 Is the ratio between the total volume of a cylinder when the piston is at bottom dead centre to the volume of the charge in a cylinder when the piston is at top dead centre.

Transcript of Curriculum · Web viewCV = SV CR-1 = 498, 76 8.5-1 = 66,50 cm3 1.2.3 New bore diameter: Compression...

Province of the

EASTERN CAPE

EDUCATION

DIRECTORATE SENIOR CURRICULUM MANAGEMENT (SEN-FET)

HOME SCHOOLING SELF-STUDY WORKSHEET ANSWER SHEET

SUBJECT

AUTOMOTIVE

GRADE

DATE

APRIL 2020 WK 3

TOPIC

FORCES: MEMORANDUM

TERM 1

REVISION

(Please tick)

TERM 2 CONTENT

(√)

QUESTION 1

Define the term compression ratio of an engine.

The bore and stroke of an engine is 84 mm and 90 mm respectively and they have a compression ratio of 8,5 : 1.

Calculate:

a) The swept volume

b) The original clearance volume in cm3

c) The compression ratio is increased to 9,5: 1. What would be the new bore diameter, if the clearance volume remains unchanged?

SOLUTION:

Compression Ratio

1.1 Is the ratio between the total volume of a cylinder when the piston is at bottom dead centre to the volume of the charge in a cylinder when the piston is at top dead centre.

Compression ratio calculations:

1.2.1 Swept Volume = X L

= X 9

= 498,76 cm3

1.2.2 Compression ratio =

CV =

=

= 66,50 cm3

1.2.3 New bore diameter:

Compression ratio =

CR = + 1

CR – 1 =

9,5 – 1 =

SV = 66,5 x 8,5

X L = 66.5 x 8,5

D2 =

= 79,97 cm2

D = √79,97

D = 8,94 cm

D = 89,4 mm

QUESTION 2 SOLUTION

Question 3

3.1 Indicated power (IP):

It is a measure to determine the power developed by the burning fuel within the cylinder of an engine.

3.2 Brake power testing tools:

3.2.1 Electric dynamometer is an electric current generating mechanism fitted to the engine. As the engine drives the generator and by measuring the amount of electricity produced, it determines the engine brake power in the process.

3.2.2 Chassis dynamometer is a measuring tool used at the drive wheels of a vehicle. It consists of two rollers loaded in-line with the specifications of increasing resistance in order to determine the brake power of an engine.

3.2.3 Power Calculation

Given Data:

QUESTION 4

The following data was recorded during a Pröny brake test on a four-stroke four-cylinder petrol engine:

Brake arm length: 300 mm

Balance reading: 125 kg

Crankshaft revolutions: 2 400 r/min

Mean effective pressure: 950 kPa

Bore diameter: 120 mm

Stroke length: 140 mm

SOLUTION:

Power calculations:

Take gravitational acceleration to be 10m/s2

Force = (125 X 10) = 1250 N

Torque = Force X Radius

= 1250 N X 0,3 m

= 375 Nm

0,122

D2


DUNE Project Status - INDICO-FNAL (Indico) · WBS (2), Work Package.WBS (3), Work Package.WBS (4), Work PBudget Earned Actuals SV ($) SV (%) CV ($) CV (%) SPI CPI 131.02 DUNE 11,654

DUNE Project Status - INDICO-FNAL (Indico) · WBS (2), Work Package.WBS (3), Work Package.WBS (4), Work PBudget Earned Actuals SV ($) SV (%) CV ($) CV (%) SPI CPI 131.02 DUNE 11,654

Computer Simulation of Fresnel Diffraction from Triple ...oaji.net/articles/2014/1459-1416553359.pdf · Cv Cv Sv Sv = − + − × − +− 1. Here, I 0 is the unobstructed intensity

Computer Simulation of Fresnel Diffraction from Triple ...oaji.net/articles/2014/1459-1416553359.pdf · Cv Cv Sv Sv = − + − × − +− 1. Here, I 0 is the unobstructed intensity

Sustain High Performance with Adaptive Process …...CR =1: Big CV + MV movement, so we need shorter plant test time compared with small CR. CR < 0.1: Small CV + MV movement, lower

Sustain High Performance with Adaptive Process …...CR =1: Big CV + MV movement, so we need shorter plant test time compared with small CR. CR < 0.1: Small CV + MV movement, lower

SV Series Parts - WebstaurantStore · 2014. 5. 22. · SV/SVi Series – 1 S & SVi Series Ice & Beverage Dispenser Parts List for Models SV-150 SV-175 SV-200 SV-250 SV-150i SV-175i

SV Series Parts - WebstaurantStore · 2014. 5. 22. · SV/SVi Series – 1 S & SVi Series Ice & Beverage Dispenser Parts List for Models SV-150 SV-175 SV-200 SV-250 SV-150i SV-175i

CV & SV to HDMI Converter with Audio Input · • Can scale CV/SV to HDMI format • PC Output resolutions: XGA, SXGA, UXGA • Component Output resolutions : 480p/576p, 720p@50 or

CV & SV to HDMI Converter with Audio Input · • Can scale CV/SV to HDMI format • PC Output resolutions: XGA, SXGA, UXGA • Component Output resolutions : 480p/576p, 720p@50 or

SCHEME - Second Semester CE CR CS CV

SCHEME - Second Semester CE CR CS CV

M97 · Six high speed operation molds: CC,CR,CV,CW,CC+CV,CR+CW Over current, over voltage, over power, over heat, polarity reversed protection High-luminance VFD screen with two lines&

M97 · Six high speed operation molds: CC,CR,CV,CW,CC+CV,CR+CW Over current, over voltage, over power, over heat, polarity reversed protection High-luminance VFD screen with two lines&

CM-398M CV/SV to PC/HD Converter · 2012-07-18 · 1. Introduction This economical Video to PC converter box that can convert CV/SV (NTSC or PAL system) to supported PC resolution

CM-398M CV/SV to PC/HD Converter · 2012-07-18 · 1. Introduction This economical Video to PC converter box that can convert CV/SV (NTSC or PAL system) to supported PC resolution

19-CR-561 & 11-CV- 691 - Findings of Fact & Conclusions of ...

19-CR-561 & 11-CV- 691 - Findings of Fact & Conclusions of ...

SV-10/CV-616/CK-21 - Sunnen Products Company faster or last longer. For long or repet-— — ☛ SV-10/CV-616/CK-21 Diameter Range: mmmm Part

SV-10/CV-616/CK-21 - Sunnen Products Company faster or last longer. For long or repet-— — ☛ SV-10/CV-616/CK-21 Diameter Range: mmmm Part

CR Release Sv

CR Release Sv

CR(CV)-NLGD 시리즈

CR(CV)-NLGD 시리즈

Annexure-I CASES REGISTERED(CR), CASES … · annexure-i sl state cr cs cv tc cvr par pcs pcv cr cs cv tc cvr par pcs pcv cr cs cv tc cvr par pcs pcv 1 andhra pradesh 1362 1210 141

Annexure-I CASES REGISTERED(CR), CASES … · annexure-i sl state cr cs cv tc cvr par pcs pcv cr cs cv tc cvr par pcs pcv cr cs cv tc cvr par pcs pcv 1 andhra pradesh 1362 1210 141

Local Stability Conditions for the Babuska Method of ......spheres, Cv C R", such that for each v, the center of Cv is in Sv, d{Cv) = SKd{Sv), and for each C G {Cv}, C n Cv # 0 for

Local Stability Conditions for the Babuska Method of ......spheres, Cv C R", such that for each v, the center of Cv is in Sv, d{Cv) = SKd{Sv), and for each C G {Cv}, C n Cv # 0 for

SAFETY INSTRUCTIONS Gg_center/assets/… · Features • 7 operating modes: CC, CV, CR, CP, CC+CV, CR+CV, CP+CV • Fully programmable with normal and fast sequences • Soft start

SAFETY INSTRUCTIONS Gg_center/assets/… · Features • 7 operating modes: CC, CV, CR, CP, CC+CV, CR+CV, CP+CV • Fully programmable with normal and fast sequences • Soft start

Case 5:11-cv-00017-cr Document 1 Filed 01/18/11 Page 1 of 37 complaint... · 2017. 12. 19. · Case 5:11-cv-00017-cr Document 1 Filed 01/18/11 Page 36 of 37. Case 5:11-cv-00017-cr

Case 5:11-cv-00017-cr Document 1 Filed 01/18/11 Page 1 of 37 complaint... · 2017. 12. 19. · Case 5:11-cv-00017-cr Document 1 Filed 01/18/11 Page 36 of 37. Case 5:11-cv-00017-cr

Product Info Cv Sv

Product Info Cv Sv

New Products Announcement CR Nov. 2014 · CR CV CORVETT OEM:20979403 CV CORVETT STINGRAY CONVERTILE CONDENSER (PFC) New Announcement Products 606-CV2053. Created Date: 1/7/2015 4:49:59

New Products Announcement CR Nov. 2014 · CR CV CORVETT OEM:20979403 CV CORVETT STINGRAY CONVERTILE CONDENSER (PFC) New Announcement Products 606-CV2053. Created Date: 1/7/2015 4:49:59

SV 191002301 01 05 - Hydrotek Engineering Company · • boiler feed vertical multistage electric pumps sv series sv 2, sv 4, sv 8, sv 16 sv 33, sv 46, sv 66, sv 92 four new sizes

SV 191002301 01 05 - Hydrotek Engineering Company · • boiler feed vertical multistage electric pumps sv series sv 2, sv 4, sv 8, sv 16 sv 33, sv 46, sv 66, sv 92 four new sizes

[sv] Validity date from LAND Vietnam 00269 [SV] SECTION ... · 2 / 33 [sv] List in force Godkännandenum mer Namn Ort [sv] Regions [sv] Activities [sv] Remark [sv] Date of request

[sv] Validity date from LAND Vietnam 00269 [SV] SECTION ... · 2 / 33 [sv] List in force Godkännandenum mer Namn Ort [sv] Regions [sv] Activities [sv] Remark [sv] Date of request