Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
6th Edition
ISBN: 9780135257272
Author: James D. Halderman
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 5CQ
Which statement is true about thermostats?
- a. The temperature marked on the thermostat is the temperature at which the thermostat should be fully open.
- b. Thermostats control the flow of coolant to the heater.
- c. The temperature marked on the thermostat is the temperature at which the thermostat should start to open.
- d. Both a and b.
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Chapter 21 Solutions
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Ch. 21 - What is normal operating coolant temperature?Ch. 21 - Explain the flow of coolant through the engine and...Ch. 21 - Why is a cooling system pressurized?Ch. 21 - Describe how to diagnose a heater problem.Ch. 21 - What are 10 common causes of overheating?Ch. 21 - What diagnostic trouble code (DTC) could be set if...Ch. 21 - Prob. 2CQCh. 21 - What type of pump is a water pump? a. Positive...Ch. 21 - Water pumps __________. a. only work at idle and...Ch. 21 - Which statement is true about thermostats? a. The...
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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
- Why is a low-voltage thermostat normally more accurate than a high-voltage thermostat?arrow_forwardQuestion1. If an air conditioning system has three independent zones, how many space thermostats will the system have? Question 2. A technician is traversing a duct and obtains the following 8 velocity: 500fpm, 400fpm, 375fpm,625fpm,275fpm,360fpm,450fpm,and 575fpm. What is the velocity value that can be used for the system calculations?arrow_forward2.A. You can usually check for a leak in a vacuum system by looking at or feelingA. at the exhaust of the vacuum pump.B. at the vacuum gauge at the vacuum pump.C. for signs of dirt on the piping. 2.B. When you measure the voltage drop across a set of contacts, you'reA. checking the quality of the contact set.B. sensing how much current is flowing in the circuit.C. measuring the equivalent motor resistance. 2.C. A chain-drive system can be aligned easier than a belt-drive system since the chain-drive systemA. can have a string left on the sprockets after the alignment is complete.B. can have the chain removed while the final alignment is taking place.C. is less critical to misalignment.arrow_forward
- What is a variable-output programmable thermostat?arrow_forwardWhat to do if a thermostat reading seems wrongarrow_forwardAn overheating vehicle is being discussed. Technician A states that the thermostat is open until the engine fully warms up. Technician B states that the vehicle may be overheating because the thermostat is stuck closed. Who is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor Barrow_forward
- Lockout may involve: Opening a disconnect switch. b. Closing a valve. Placing a block in the equipment. d. All of the above. a. C.arrow_forwardWhat is the primary purpose of a thermostat jiggle valve? Select one: a. To act as a bypass for coolant b. To relieve water pump pressure under load c. To ensure coolant flows the correct direction d. To aid in bleeding air from the systemarrow_forwardIf the thermostat contacts are closed the compressor and the condenser fan motor are not operating, and all the other loads are operating properly, which might be the problem? A. A bad high pressure safety switch. B. A bad low pressure switch C. Both A. and B. D. A bad thermostatarrow_forward
- What type of chemical is used to cause a pressure change in a bellows type thermostat?arrow_forward2. Two sections must be discussed: 2.1. Talking about the material from which the air conditioner compressor is made with a presentation of the properties of the material 2.2. Preparing the executive drawing of the air conditioner compressor (job shop drawing) and it should include (dimensional and geometrical tolerances)arrow_forward2. Design a thermostatarrow_forward
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