Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 3, Problem 3MC
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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Which of the following statement is incorrect?
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Which of the following statement is correct
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Friction causes objects to slip down
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Friction creates heat.
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True
False
Chapter 3 Solutions
Automotive Technology
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 - Explain why elastic mounts are used to connect the...
Ch. 3 - Name three types of simple machines.Ch. 3 - The nucleus of an atom contains andCh. 3 - Prob. 2FITBCh. 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 - Vacuum is defined as the absence ofCh. 3 - Which of the following is the correct formula used...Ch. 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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- Dry friction: O Produces a force normal to the surfaces of contact. Occurs only when two objects are moving past each other. Occurs when objects are in a condition of sliding or a tendency to slide. O Occurs only when two objects are in a condition of a tendency to slide.arrow_forwardWhat type of lever produces a great amount of force at the expense of speed? Third-class lever Second-class lever First-class lever Fourth-class leverarrow_forwardWhen 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_forward
- In the motion on inclined plane, the frictional force is inversely proportional to coefficient of friction Select one: O True O Falsearrow_forwardYou can use a lever to increase force, distance, and speed. true or false just put answerarrow_forward.A truck was left on top of a hill without brakes. The truck rolls down the hill for 500 ft. The friction coefficient between tires and the road is 0 02. The grade the hill is 2.5. What is the speed of the vehicle after rolling down 500 ft. a. 21.3 mph o b. 12.7 mph c. 16.8 mph O d. 19.2 mpharrow_forward
- Which of the following is the characteristic of Friction? Select one: O Friction creates heat O Friction does not create heat O Low for rough and dry surfaces O Friction does not cause object to slow downarrow_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_forwardGive explanation both parts within 30 minutesarrow_forward
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