Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 55, Problem 2ASRQ
Technician A says that some refrigerant leaks can also be traced to pinholes in the evaporator caused by acid, which forms when water and refrigerant mix. Technician B says that leaks are most often found at the compressor hose connections and at the various fittings and joints in the system. Who is correct?
- Technician A only
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Chapter 55 Solutions
Automotive Technology
Ch. 55 - What should you do if you suspect that an...Ch. 55 - Explain how dye can be used to find leaks in the...Ch. 55 - What is the purpose of the thermostatic switch in...Ch. 55 - Why should the probe of an electronic leak...Ch. 55 - How will air trapped in the A7C system affect...Ch. 55 - Which of the following statements best defines the...Ch. 55 - Which of the following statements is not true...Ch. 55 - To charge an air-conditioning system while it is...Ch. 55 - All of the following are true statements about...Ch. 55 - A very important part of a performance test on an...
Ch. 55 - While conducting a pressure test on an A/C system,...Ch. 55 - The high-side pressure on a system with a cycling...Ch. 55 - When checking an A/C system, the evaporators inlet...Ch. 55 - All of these are good reasons for replacing an...Ch. 55 - In an AZC system, if the low-side pressure is...Ch. 55 - Technician A says that evacuating (pumping down)...Ch. 55 - Technician A says that some refrigerant leaks can...Ch. 55 - Technician A says that the presence of oil around...Ch. 55 - Technician A says that a faulty accumulator will...Ch. 55 - Technician A says that air in the system can cause...Ch. 55 - Technician A feels up and down the face or along...Ch. 55 - Technician A says that a manifold gauge set can be...Ch. 55 - While discussing an inoperative blend air door:...Ch. 55 - Two technicians were discussing how comparing the...Ch. 55 - While conducting an A/C system performance test:...
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- An Inclining experiment done on a ship thats 6500 t, a mass of 30t was moved 6.0 m transvesly causing a 30 cm deflection in a 6m pendulum, calculate the transverse meta centre height.arrow_forwarda ship 150 m long and 20.5 m beam floats at a draught of8 m and displaces 19 500 tonne. The TPC is 26.5 and midshipsection area coefficient 0.94. Calculate the block, prismatic andwaterplane area coefficients.arrow_forwardA vessel loads 680 t fuel between forward and aft deep tanks. centre of gravity of forward tank is 24m forward of ships COG. centre to centre between tanks is 42 m. how much in each tank to keep trim the samearrow_forward
- Beam of a vessel is 11% its length. Cw =0.72. When floating in SW of relative denisity 1.03, TPC is 0.35t greater than in freshwater. Find the length of the shiparrow_forwardAn inclining experiment was carried out on a ship of 4000tonne displacement, when masses of 6 tonne were moved transverselythrough 13.5 m. The deflections of a 7.5 m pendulurnwere 81, 78, 85, 83, 79, 82, 84 and 80 mm respectively.Caiculate the metacentric height.arrow_forwardA ship of 10 000 tonne displacement has a waterplanearea of 1300 m2. The ship loads in water of 1.010 t/m3 andmoves into water of 1.026 t/m3. Find the change in meandraughtarrow_forward
- A ship of 7000 tonne displacement has a waterplane areaof 1500 m2. In passing from sea water into river water of1005 kg/m3 there is an increase in draught of 10 cm. Find the Idensity of the sea water.arrow_forwardA ship has 300 tonne of cargo in the hold, 24 m forward ofmidships. The displacement of the vessel is 6000 tonne and its centre of gravity is 1.2 m forward of midships.Find the new position of the centre of gravity if this cargo ismoved to an after hold, 40 m from midshipsarrow_forwardSketch and describe how ships are supported in dry dock. When and where does the greatest amount of stresses occur?arrow_forward
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