Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781305176423
Author: ERJAVEC
Publisher: Cengage
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Chapter 6, Problem 5RQ
To determine
The incorrect statement among the given ones.
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Which of the following statements regarding the “Pre-Emission Inspection Check” Of a diesel powered vehicle that is subject to Opacity (Smoke Meter) testing is not true?
The governor (if equipped), the exhaust system, and the emissions control devices must all be checked.
The exhaust system must be checked for any missing sections which would prevent collection of a valid exhaust sample.
Vehicles not meeting requirements cannot be inspected. This is not considered an inspection or rejection and no fee is to be charged.
The governor, if originally equipped, must be checked for presence, connection, and operation.
Which of the following statements about vehicles that are subject to Diesel Opacity Emissions (Smoke Meter) Inspection is NOT true?
Only diesel powered vehicles with a Gross Vehicle Weight Rating (GVWR) over 8,500 pounds, per New York State Department of Environmental Conservation (DEC) regulations.
“DEMA” will appear on a vehicle's New York State registration to indicate that the vehicle is subject to an opacity smokemeter test (in addition to the safety inspection).
The “DEMA” (Diesel Emissions Metropolitan Area) Counties include Suffolk, Nassau, Queens, Kings, Richmond, New York, Bronx, Westchester & Albany.
Only diesel powere
When performing an engine oil level
check, if additional oil is needed, estimate
the amount by checking the emissions
standards guide to the dipstick markings.
Select one:
True
False
Chapter 6 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 6 - Explain why testlights are not recommended for...Ch. 6 - True or False? A compression gauge will show the...Ch. 6 - Name the two basic types of compression gauges.Ch. 6 - What tool is used to test engine manifold vacuum.Ch. 6 - Prob. 5RQCh. 6 - Technician A says that a brake drum micrometer has...Ch. 6 - Technician A says that a pyrometer measures...Ch. 6 - True or False? A lab scope is a visual voltmeter...Ch. 6 - Prob. 9RQCh. 6 - Technician A uses a digital volt/ohmmeter to test...
Ch. 6 - Technician A says that a charging station removes...Ch. 6 - Which of the following statements about manifold...Ch. 6 - True or False? A brake shoe adjusting gauge is an...Ch. 6 - When conducting an oil pressure test: Technician A...Ch. 6 - Which of the following conditions can be revealed...Ch. 6 - Technician A uses a high-impedance testlight on...Ch. 6 - Technician A says that a sulfated and plugged fuel...Ch. 6 - The tests conducted by a scan tool can also be...Ch. 6 - When using a fuel injector pulse tester....Ch. 6 - To measure engine cranking current, a DNIM...Ch. 6 - While discussing a clutch alignment tool....Ch. 6 - True or False? The angle of the drive shaft at the...Ch. 6 - Technician A says that ball joints may be pressed...Ch. 6 - Which of the following is not a suitable way to...Ch. 6 - Prob. 25RQ
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- Which of the following statements about a fuel volume test is not true? a. This test measures the flow rate of the pump and can help isolate fuel system restrictions or weak pumps. b. The test is conducted by collecting the fuel dispensed by the certain during a period of time, normally 5 seconds. c. The flow of fuel into the container should be smooth and continuous with no signs of air bubbles. d. Poor results may indicate a bad pump or restrictions in the delivery system.arrow_forwardWhich of the following statements about fuel trim is not true? a. A positive fuel trim value means that the PCM detects a lean mixture and is decreasing the pulse width to add more fuel to the mixture. b. Short-term fuel trim represents changes made immediately in response to HO2S signals. c. Long-term fuel trim represents changes made to set a new base pulse width. d. Long-term fuel trim responds to the trends of the short-term fuel trim.arrow_forwardWhich of the following statements about fuel trim is not true? a. A positive fuel trim value means that the PCM detects a lean mixture and is decreasing the pulse width to add more fuel to the mixture. b. Short-term fuel trim represents changes made immediately in response to HO2S signals. c. Long-term fuel trim represents changes made to set a new base pulse width. d. Long-term fuel trim responds to the trends of the short-term fuel trim.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_forwardWhat is the testing procedure for diesel systems as outlined by the national environment protection (diesel vehicle emissions) measure?arrow_forwardThe Diesel Emissions Opacity Inspection Procedure includes a visual check of the OEM (Original Equipment Manufacturer) emissions control devices for presence and connection. The Certified Inspector must reject the vehicle if any are missing, disconnected, or disabled (tampered). True or False?arrow_forward
- The Diesel Opacity (Smoke Meter) Emissions Inspection procedure requires that the Certified Inspector use an approved diesel opacity (smoke meter) tester to check emissions at the tailpipe and that the following must also be hooked up during the testarrow_forwardWhile discussing automotive emissions: Technician A says that oxygen emissions are monitored because they are an indication of the completeness of the combustion process. Technician B says that the conditions for minimizing HC emissions are the same as those that cause high NOx emissions. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardHow can ambient temperature and pressure affect vehicle emission rates?arrow_forward
- The octane number of a fuel is the percentage of octane in that fuel. True Falsearrow_forwardThe uncontrolled NOx exhaust emission rate on a new U.S. passenger car is about 3.0 gfarile. The conversion efficiency of a catalytic converter to meet an emission standard of 0.4 g/mile is most nearly:a. 87%b. 90%c. 98%d. 99%arrow_forwardState the different ways of monitoring fuel oil quality and how to maintain an acceptable value during operation.arrow_forward
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