Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 17, Problem 6ASRQ
Technician A says that before a battery is removed, a memory' saver ought to be installed. Technician B says that before a battery’ is removed, the positive cable should be disconnected and the area around the battery should be cleaned. Who is correct?
- Technician A
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University of Babylon
College of Engineering\Al-Musayab
Automobile Engineering Department
Final Examination/1st Attempt
جامعة بابل
Subject: I. C. Engines I
Maximum Time: 3 Hours
Class: 3rd
Date:
/ / 2023
Answer 07 of the following questions
(First Semester) 2022/2023
(1) Choose the correct answer for eight only from below
1- Indicator diagram shows for one complete revolution of crank
Maximum mark: 50 Deg.
a) variation of kinetic heat in the cylinder. b) variation of pressure head in the cylinder
c) variation of kinetic and pressure heat in the cylinder. d) none of the above.
2- A carburetor is used to supply
(a) petrol, air and lubricating oil (b) air and diesel (e) petrol and lubricating oil (d) petrol and air.
3- In a four stroke cycle petrol engine, the charge is compressed when
a) inlet valve is closed. b) exit valve is closed.
c) both inlet and exit valves are closed. d) both inlet and exit valves are open.
(8 deg.)
4- For an engine operating on air standard Otto cycle, the…
(6) Determine the sizes of fuel orifice to give a 13.5 air fuel ratio, if the venture throat has 3 cm diameter and the
pressure drop in the venture is 6.5 cm Hg. The air temperature and pressure at carburetor entrance are 1 bar and
27 °C respectively. The fuel orifice is at the same level as that of the float chamber. Take density of gasoline as
(7 deg.)
740 kg/m³ and discharge coefficient as unity. Assume atmospheric pressure to be 76 cm of Hg.
(7) A four-cylinder, four-stroke internal combustion engine has a bore of 87 mm. and a stroke of 77 mm. The
clearance volume is 17% of the stroke volume and the engine with speed of 2700 rpm. The processes within
each cylinder are modeled as an Otto cycle with a pressure of 1 atm and a temperature of 17 °C at the beginning
(7 deg.)
of compression. The maximum temperature in the cycle is 2717 °C
(a) Draw the P-v diagram; label Pressures, Temperatures, Qin, and Qual
(b) Calculate the mass of air at the beginning of the cycle
(c) Calculate the…
University of Babylon
College of Engineering\Al-Musayab
Automobile Engineering Department
Final Examination/1st Attempt
جامعة بابل
Subject: I. C. Engines I
Maximum Time: 3 Hours
Class: 3rd
Date:
/ / 2023
Answer 07 of the following questions
(First Semester) 2022/2023
(1) Choose the correct answer for eight only from below
1- Indicator diagram shows for one complete revolution of crank
Maximum mark: 50 Deg.
a) variation of kinetic heat in the cylinder. b) variation of pressure head in the cylinder
c) variation of kinetic and pressure heat in the cylinder. d) none of the above.
2- A carburetor is used to supply
(a) petrol, air and lubricating oil (b) air and diesel (e) petrol and lubricating oil (d) petrol and air.
3- In a four stroke cycle petrol engine, the charge is compressed when
a) inlet valve is closed. b) exit valve is closed.
c) both inlet and exit valves are closed. d) both inlet and exit valves are open.
(8 deg.)
4- For an engine operating on air standard Otto cycle, the…
Chapter 17 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 17 - Define an electrolyte and its role in battery...Ch. 17 - Prob. 2RQCh. 17 - How is a battery leakage test conducted?Ch. 17 - Describe parasitic draw.Ch. 17 - How can you identify the high-voltage system in...Ch. 17 - How many volts are present in a fully charged...Ch. 17 - What is meant by the term specific gravity?Ch. 17 - What causes gassing in a battery?Ch. 17 - List five things that shorten the life of a...Ch. 17 - True or False? All electrochemical batteries have...
Ch. 17 - Prob. 11RQCh. 17 - True or False? A batteny is an electromechanical...Ch. 17 - True or False? The BCI determines battery ratings...Ch. 17 - Which of the following statements about battery...Ch. 17 - Which of the following statements about battery...Ch. 17 - Prob. 1ASRQCh. 17 - Technician A says that the reserve rating of a...Ch. 17 - Technician A says that battery straps should be...Ch. 17 - Technician A says jump-starting a battery can...Ch. 17 - Prob. 5ASRQCh. 17 - Technician A says that before a battery is...Ch. 17 - Technician A says that side post terminals need to...Ch. 17 - A vehicles battery goes dead after sitting for two...Ch. 17 - Technician A always wears safety glasses or...Ch. 17 - While discussing the results of a load test:...
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