Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
thumb_up100%
Chapter 34, Problem 1SA
A rich air-fuel ratio causes HC emissions to ________.
Expert Solution & Answer
To determine
The appropriate word to fill in the blank in the statement “ A rich air-fuel causes HC emissions to _______”.
Answer to Problem 1SA
A rich air-fuel ratio causes higher HC emissions.
Explanation of Solution
Unburned hydrocarbons are usually, vapors of gasoline that have not been burned during combustion. HC emissions illustrate that the combustion of fuel is not completed in the engine cylinder. The amount of HC depends on certain engine conditions, one of which is a rich air-fuel ratio. Whenever the mixture of air-fuel is extremely rich it causes higher HC and CO emissions.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The particle has a mass of 0.5 kg and is confined to move along the smooth
horizontal slot due to the rotation of the arm OA. Determine the force of the rod
on the particle and the normal force of the Isot on the particle when 0 = 30°.
The rod is rotating with a angular velocity of ė = 2rad/s and an angular
acceleration of = 3rad/s². Assume the particle only contacts one side of the
slot at any instant. To check your answer, please enter the normal force of the
slot onto the particle in Newtons.
A
* = 2 rad/s
-0-
0.5 m
Solve, use engineering economic tables
Solve, use engineering economic tables
Chapter 34 Solutions
Automotive Technology
Ch. 34 - A rich air-fuel ratio causes HC emissions to...Ch. 34 - What will result from too little EGR flow? And...Ch. 34 - What can result from a charcoal canister that is...Ch. 34 - What happens if a PCV valve is stuck in the open...Ch. 34 - Explain why the I/M 240 and similar tests are...Ch. 34 - How do you test the efficiency of a secondary AIR...Ch. 34 - List five common causes for high HC emissions.Ch. 34 - Describe carbon monoxide (CO) emissions in...Ch. 34 - An EGR valve that does not fully close can cause...Ch. 34 - A restricted catalytic converter can cause all of...
Ch. 34 - Which of the following statements about EVAP...Ch. 34 - As a catalytic converter begins to deteriorate,...Ch. 34 - How much pressure does a typical EVAP pressure...Ch. 34 - Which of the following exhaust gases is typically...Ch. 34 - Prob. 7MCCh. 34 - While discussing the proper way to test a...Ch. 34 - Prob. 2ASRQCh. 34 - While discussing catalytic converter diagnosis:...Ch. 34 - While discussing EGR valve diagnosis: Technician A...Ch. 34 - While discussing EGR valve diagnosis: Technician A...Ch. 34 - When discussing the diagnosis of a positive back...Ch. 34 - While diagnosing a PCV problem: Technician A says...Ch. 34 - Technician A says that the AIR system should pump...Ch. 34 - While discussing PCV system diagnosis: Technician...Ch. 34 - While discussing EVAP testing: Technician A says...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Qu 2 Calcium oxide (CaO) a white, caustic, alkaline solid that reacts vigorously with water to produce calcium hydroxide, releasing heat in the process. It is used in various industrial applications, including cement production and water treatment. The ionic radii of the ions are: TCa2+= 0.100 nm and roz-= 0.140 nm. On the basis of this information answer the following questions:Number 1 through 4 I need to show all work step by step problemsarrow_forwardShow work if any equations or calculations are used. Assuming hole basis, find the shaft and hole dimensions for a sliding fit using a basic hole size of 20mm. Show the max and minimum size for both hole and shaft. Utilize the equations and tables in the appendix.arrow_forwardShow work if any equations or calculations are used. A milling machine is equipped with a 1” diameter end mill. During a facingoperation, the spindle is running at 275 RPM. The depth of cut is 0.04” and linear feed rate is 2” per minute. Find: (a) Cutting speed, (b) Material Removal Ratearrow_forward
- L1 = 5.7m, L2 = 1m, L3 = 1.2m, L4 = 1m, L5 = 0.2, L6 = 0.5m, v2 = 4.8m/s. The solutions should include, but not be limited to, the equations used tosolve the problems, the charts used to solve the problems, detailed working,choice of variables, the control volume considered, justification anddiscussion of results etc.If determining the friction factor, the use of both Moody chart and empiricalequations should be used to verify the validity of the valuearrow_forwardPlease identify the marked points of the stress-strain curve (Write on graph next to corresponding letter) Stress, σ A D (slope of line) B. C Strain, &arrow_forwardr Q2. A bracket is attached to a vertical column by means of six identical bolts as shown in Fig. 1. It is subjected to an eccentric force of P-80 kN at a distance of 200 mm from the center of column. What is the magnitude of maximum shear force and which bolt carry it? P= 80 kN 200 Fig. 1 1 2- 75 6 30 75 → 5 .5 1- 50 10-50-1arrow_forward
- 3. The attachment shown in the Fig.2 is made of 1040 HR. The static force is 30 kN. Specify the weldment (give the pattern, electrode number, type of weld, length of weld, and leg size). 30 kN Fig. 2 500 All dimension in mm 100 (15 marks)arrow_forwardฉันต้องการหา อุณหภูมิสุดท้ายของกระบวนการนี้และงานของกระบวนการนี้มีค่าเท่าใดarrow_forwardThe pressure and temperature at the beginning of compression of a cold air-standard Diesel cycle are 100 kPa and 300 K , respectively. At the end of the heat addition, the divssure is 7.2 MPa and the temperature is 2050 K . Assume constant specific heats evaluated at 300 K . Determine:(a) the compression ratio.(b) the cutoff ratio.(c) the percent thermal efficiency of the cycle.(d) the mean effective pressure, in kPa .arrow_forward
- Q3. Determine the reaction force at A and force P applied at 45° to the horizontal just necessary to start a roller 100 cm diameter over an obstruction 25 cm high, if the roller weighs 1000 N, as shown in Fig. 3. Fig. (3)arrow_forwardCorrect Answer is written below(preferably handwritten solution) . Detailed and complete fbd only please. I will upvote, thank you.arrow_forwardThe pressure and temperature at the beginning of compression of a cold air-standard Diesel cycle are 100 kPa and 300 K , respectively. At the end of the heat addition, the pressure is 7.2 MPa and the temperature is 2050 K . Assume constant specific heats evaluated at 300 K . Determine:(a) the compression ratio.(b) the cutoff ratio.(c) the percent thermal efficiency of the cycle.(d) the mean effective pressure, in kPaarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Automotive Technology: A Systems Approach (MindTa...Mechanical EngineeringISBN:9781133612315Author:Jack Erjavec, Rob ThompsonPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Automotive Technology: A Systems Approach (MindTa...
Mechanical Engineering
ISBN:9781133612315
Author:Jack Erjavec, Rob Thompson
Publisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
Extent of Reaction; Author: LearnChemE;https://www.youtube.com/watch?v=__stMf3OLP4;License: Standard Youtube License