Automotive Technology: A Systems Approach - With Manual and Access
6th Edition
ISBN: 9781305513235
Author: ERJAVEC
Publisher: Cengage
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Chapter 3, Problem 21RQ
While discussing friction in matter: Technician A says that friction creates heat. Technician B says that friction only occurs with solids and is not present with liquids and gases. Who is correct?
- Technician A only
- Technician B only
- Both A and B
- Neither A nor B
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Chapter 3 Solutions
Automotive Technology: A Systems Approach - With Manual and Access
Ch. 3 - Describe Newtons first law of motion and give an...Ch. 3 - In what four states does matter exist? Cite...Ch. 3 - Explain Newtons second law of motion and give an...Ch. 3 - Describe five different forms of energy.Ch. 3 - Describe four different types of energy...Ch. 3 - Explain why a rotating, tilted wheel moves in the...Ch. 3 - Why are gases and liquids considered fluids?Ch. 3 - Describe how out-of-balance forces can affect the...Ch. 3 - Describe the effect of pressure on an enclosed...Ch. 3 - The nucleus of an atom contains and
Ch. 3 - Which of the following is the correct formula used...Ch. 3 - Work is calculated by multiplying by.Ch. 3 - Prob. 13RQCh. 3 - Name three types of simple machines.Ch. 3 - When one object is moved over another object, the...Ch. 3 - Weight is the measurement of the earths on an...Ch. 3 - Torque is a force that does work with a action.Ch. 3 - Explain why elastic mounts are used to connect the...Ch. 3 - Vacuum is defined as the absence ofCh. 3 - While discussing different types of energy:...Ch. 3 - While discussing friction in matter: Technician A...Ch. 3 - While discussing mass and weight: Technician A...Ch. 3 - When applying the principles of work and force,...Ch. 3 - All these statements about energy and energy...Ch. 3 - Which of the following is not a true statement...
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- When the brakes are applied on a moving car, the frictional parts (brake or) are forced against the rotating parts of the car (brake or). The friction causes the rotating parts to slow down and stop. Just as the energy of the rotating parts is called kinetic, the friction used to stop them is called kinetic.arrow_forwardThe coefficient of dynamic friction is always ____________ the coefficient of static friction. Select one: opposite Greater than equal less thanarrow_forwardWhat is the frictional Forcearrow_forward
- An example of a liquid lubricant is crude base that is introduced between two contact surfaces to separate the moving parts to decrease friction. Select one: True Falsearrow_forwardTrue or False 1. It is acceptable to use a hoist to lift something that weighs more than the rating on the hoist when the load is lifted carefully. 2. Typically, combustible material accidents occur at higher temperatures while flammable material accidents occur at room temperature. 3. Water reactive chemicals include calcium carbide, cyclooctene, metal hydrides, and metals like sodium and potassium. 4. When driving material lifting equipment, workers should maintain at least a 5-foot clearance from overhead power lines. 5. Workers should use at least 2 straps placed equally from the center when lifting a long I-beam. ******************************************************************************************** Multiple Choice 1. Which of the following chemicals is not considered a liver toxin? A. Glacial acetic acid B. Carbon Tetrachloride C. Ethanol D. Trichloroethylene 2. Which of the following is a safety practice intended to protect workers from a lightning strike? A. Use a metal…arrow_forwardTrue or false In the motion on inclined plane,the frictional force is inversely proportional to reaction forcearrow_forward
- How are frictional losses measured in the drive line of a vehicle? By slowing down the dynamometer. The losses can be measured during coast down. By having the dynamometer drive the vehicle wheels while coasting.arrow_forwardDescribe Newtons first law of motion and give an application of this law in automotive theory.arrow_forwardWhen acceleration can be zero?arrow_forward
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