EBK AUTOMOTIVE TECHNOLOGY
5th Edition
ISBN: 9780100659841
Author: Halderman
Publisher: YUZU
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Textbook Question
Chapter 1, Problem 6CQ
What component regulates the temperature of the coolant in an engine?
- a. Cooling (water) jackets
- b. Thermostat
- c. Cooling fan(s)
- d. Radiator
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d. Check oil level & moisture content
19. If the main wire (coil) to the distributor and the coil to the switch are broken, replace them and make
sure the connections are clean and tight relevant to
a. Breaking system
b. Ignition system
c. Ventilation system
d. Combustion system
20. The required gap in ignition system between----------
a.-4 to 5
b.-0.4 to 5
c.-0.4 to 0.5
d.-4 to 0,5
|21. Which of the following is the fouled of spark plug
a. Soot
b. Oil
c. Over heated
d. All of the above
|22.The suitable thread of spark plug for heavy engine is
a. M19
b. M18
c. M15
d. M16
23. Using a Torque wrench, tighten the plugs to the specified torque. (Most) 4mm plugs are torqued to
four kilograms per square inch.
a. True
b. False
24. Start the engine and evaluate its performance refers to
a. Weekly Maintenance
b. Annually Maintenance
c. Daily Maintenance
d. None of them
25. Check to see if Dynamo is working properly. If necessary, adjust the regulator refers to
a. Weekly Maintenance
b. Annually…
1. An air-source heat pump is a heat-pump system that uses air:
a. as the system refrigerant.
b. as the heat source when operating in the cooling mode.
c. as the heat sink when operating in the heating mode.
d. as the heat source when operating in the heating mode.
2. According to the Department of Energy, duct leakage can result in a energy loss?
a. 10%
b. 20%
c. 30%
d. 40%
3. As the outside ambient temperature drops, the efficiency of a heat-pump system operating in the mode will:
a. heating, drop
b. heating, rise
c. cooling, rise
d. Both a and c are correct.
to run
d. both a and b
44. Ifa thermostatic expansion valve's thermal bulb came loose from the suction line at the outlet of the
evaporator, whích of the following could result?
The bulb pressure would increase and the c.
thermostatic expansion valve would
open.
b. The superheat in the evaporator would
decrease.
a.
Liquid refrigerant would flow back to the
compressor.
d.
All of the above are correct.
45. If the thermal bulb assembly develops a leak, what will occur?
All of the system's refrigerant will leak
a.
The valve will open to allow more
c.
refrigerant to flow.
d. It will have no effect on system
operation.
out.
b. The bulb pressure will reduce and the
valve will close.
46. The purpose of an externally equalized thermostatic expansion valve is to
compensate for excessive evaporator
pressure drop
b. allow system to equalize faster
a.
prevent the expansion valve from
frosting up
d.
c.
allow refrigerant to expand in the
compressor
47. The primary function of an expansion device is…
Chapter 1 Solutions
EBK AUTOMOTIVE TECHNOLOGY
Ch. 1 - In 1900, what was the most produced vehicle...Ch. 1 - What parts are included in the vehicle chassis?Ch. 1 - Why were early engines called flat heads?Ch. 1 - Prob. 4RQCh. 1 - The powertrain consists of what components?Ch. 1 - Prob. 6RQCh. 1 - Prob. 1CQCh. 1 - Prob. 2CQCh. 1 - Which component is not part of the chassis system?...Ch. 1 - Early engines were called flat head design because...
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- Gas turbine is shut down by a. Fuel is cut off from the combustor b. Turning off starter c. Stopping the compressor d. closing the air inlet valvearrow_forwardDifferentiate the two types of external combustion enginearrow_forward8. What would be done to increase the compressor speed on a belt-driven compressor? A. Decrease drive pulley size B. Increase drive pulley size C. Increase driven pulley size 13. What lubricates the refrigeration compressor? A. Refrigerant B. Moisture C. Desiccants D. Oil D. Both A andC 9. Describe the reciprocating compressor piston, rod, crankshaft, valves, valve plate, head, shaft seal, internal motor overload device, pilot-duty motor overload de- vice, and coupling. 10. Name two things in the design of a reciprocating com- pressor that control the efficiency of the compressor. А. 14. What can the service technician do to keep the refrig- eration system operating at peak efficiency? 15. List the main advantage that a discus compressor's valve plate design has over a conventional piston-type В. 11. At what speeds in rpm does a hermetic compressor nor- mally turn? A. 1750 В. 3450 C. 4500 D. Both A and B 12. What effect does a slight amount of liquid refrigerant have on a compressor…arrow_forward
- An overheating vehicle is being discussed. Technician A states that coolant in a normal flow cooling system flows from the radiator to the heater core to warm up the passenger compartment quickly. Technician B states that in a reverse flow cooling system, coolant flows to the cylinder heads first, which keeps engine components at a more uniform temperature. Who is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A andB d. Neither Technician A nor Barrow_forwardBriefly explain the difference between a compressor and internal combustion engine.arrow_forwardThe different descriptions for fluid power conductors (lines). The ___________ lines are connected to the output device a. suction b. return/exhaust c. actuator d. supplyarrow_forward
- Which one of the following is a component of the reciprocating compressor? a. Casing b. Nozzle E Piston d. Guide vanearrow_forwardWhich one of the following statement is correct for steam nozzle? a. Outlet velocity of the steam is greater than inlet velocity of the steam b. Work done by the steam nozzle O C. The height difference between inlet and outlet nozzle is more o d. Heat is rejected by the steam nozzlearrow_forwardTechnician A says that an air-conditioning system removes heat from inside the engine. Technician B says that the heating system removes heat from the inside of the vehicle. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
- The compressor which is is used in a.Two Stage reciprocating compressor in which two cylinders are present, big cylinder for 1st stage and small cylinder for second stage b.Two Stage reciprocating compressor in which two cylinders are present, Small cylinder for 1st stage and big cylinder for second stage c.Two Stage reciprocating compressor in which two cylinders are present, Both cylinders are for 1st stage compression of air d.Two Stage reciprocating compressor in which two cylinders are present, First cylinder is having smaller bore than second cylinder for compression of airarrow_forward-Experiment- Air conditioning (Study of Air Conditioning Unit: Evaluation of heating and steam injection performance) Q. What is the reason of having preheater before steam injector?arrow_forwardA vehicle is having its water pump replaced. When the water pump is removed, severe corrosion is found on the water pump impeller, and inside the engine. Technician A states that the radiator cap may be overpressurizing the system. Technician B states that the vehicle may have been run with 100% water in the cooling system for some time. 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
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