AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
7th Edition
ISBN: 9780357096789
Author: ERJAVEC
Publisher: CENGAGE L
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Textbook Question
Chapter 28, Problem 1MC
Which of the following statements about hydrogen is not true?
a. Hydrogen displaces air, so any release in an enclosed space could cause asphyxiation.
b. Hydrogen must be stored as a compressed gas.
c. Hydrogen is nontoxic.
d. Hydrogen is highly flammable and there is risk for an explosion.
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Which of the following gases is the least dense?
A.oxygen
B.helium
C.carbon dioxide
D.argon
a) Explain the two main dangers from oxygen cylinders and what causes them.b) Why is cleanliness very important when dealing with compressed oxygen?
What is required for a combustile mixture
A. OXYGEN
B. FUEL
C. WATER
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Chapter 28 Solutions
AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
Ch. 28 - Pump gasoline may contain a small amount of...Ch. 28 - List five advantages the use of piezoelectric...Ch. 28 - What does the Reid vapor pressure (RVP) test...Ch. 28 - List three alternative fuels for an internal...Ch. 28 - Why is the sulfur content in gasoline limited?Ch. 28 - What are oxygenates and why are they added to...Ch. 28 - Name three driveability factors that are affected...Ch. 28 - How does SCR lower the content in a diesels...Ch. 28 - Prob. 1TFCh. 28 - True or False? The diesel fuels antiknock quality...
Ch. 28 - True or False? Piezoelectric materials can emit a...Ch. 28 - Which of the following statements about hydrogen...Ch. 28 - Which of the following chemicals is commonly added...Ch. 28 - Technician A says that the use of methanol in...Ch. 28 - Technician A says that reformulated gasoline...Ch. 28 - Technician A says that dedicated vehicles are...Ch. 28 - Technician A says white smoke in the exhaust of a...Ch. 28 - Technician A says piezo material is a type of...Ch. 28 - Prob. 6ASRQCh. 28 - While discussing chemicals that are currently...Ch. 28 - While discussing common rail fuel injection...Ch. 28 - Technician A says diesel engines consume less fuel...Ch. 28 - While discussing the reasons why the use of E85...
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- Which of the following is not recommended for use when trying to extinguish flammable liquid fires? Foam Carbon dioxide Water Dry chemicalarrow_forwardTrue or False: Carbon monoxide is produced by mixing vapors from nitrogen dioxide and sulfur dioxide.arrow_forwardWhile discussing relative humidity: Technician A says that the amount of moisture that air can hold is directly related to the temperature of the air. Technician B says that the colder the air is, the more moisture it can hold. Who is correct?arrow_forward
- Which of the following statements about carbondioxide is not true?a. CO2 levels are highest when the air-fuel ratiois slightly leaner than stoichiometric.b. The production of CO2 is directly related tothe amount of fuel consumed; therefore,more fuel-efficient engines produce less CO2c. To reduce CO2 levels in the exhaust, engineers are working hard to decrease fuel consumption to keep CO2low.d. The concern for CO2 emissions is one of theprimary reasons for the delayed use of alternative fuels for automobiles.arrow_forwardWhich of the following statement about carbon dioxide is not true? a. CO2 , levels are highest when the air fuel ratio is slightly leaner than stoichiometric. b. The production CO2 , is directly related to the amount of fuel consumed; therfore, more fuel efficient engines produce less CO2 c. To reduce CO2 , levels in the exhaust, engineers are working hard to decrease fuel consumption to keep CO2 low. d. The concern for CO2 emissions is on of the primary reasons for the delayed use of alternative fuels for automobiles.arrow_forwardWhich of the following statements about fuel cells is NOT true?a. A single fuel cell produces very low voltage, normally less than one volt.b. A fuel cell produces electricity through an electro-chemical reaction that combines hydrogen and oxygen to form water.c. A fuel cell is composed of two electrodes coated with a catalyst and separated from each other by an electrolyte and from the case by separators.d. In a fuel cell, catalysts are used to ignite the hydrogen; this causes a release of electrons or electrical energy.arrow_forward
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