Tech Manual for Erjavec's Automotive Technology: A Systems Approach
6th Edition
ISBN: 9781133933731
Author: ERJAVEC, Jack, Thompson, Rob
Publisher: Delmar Cengage Learning
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Chapter 48, Problem 5ASRQ
Technician A checks the clockspring electrical connections for signs of damage when replacing a deployed air bag module. Technician B backprobes an air bag system with a multimeter to determine if the system is in good working order. Who is correct?
- Technician A only
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14.10. A liquor containing 15 per cent
solids is concentrated to 55 per cent
solids in a double-effect evaporator.
operating at a pressure in the second
effect of 18 kN/m². No crystals are
formed. The flowrate of feed is 2.5 kg/
s at 375 K with a specific heat capacity
of 3.75 kJ/kg K. The boiling-point rise of
the concentrated liquor is 6 deg K and the
steam fed to the first effect is at 240 kN/
m². The overall heat transfer coefficients
in the first and second effects are 1.8 and
0.63 kW/m²K. respectively. If the heat
transfer area is to be the same in each
effect, what areas should be specified?
D
A
14.9. A forward feed double-effect vertical
evaporator, with equal heating areas in
each effect, is fed with 5 kg/s of a liquor
of specific heat capacity of 4.18 kJ/kg K.
and with no boiling point rise, so that 50
per cent of the feed liquor is evaporated.
The overall heat transfer coefficient in the
second effect is 75 per cent of that in the
first effect. Steam is fed at 395 K and the
boiling point in the second effect is 373 K.
The feed is heated by an external heater to
the boiling point in the first effect.
It is decided to bleed off 0.25 kg/s of
vapour from the vapour line to the second
effect for use in another process. If the
feed is still heated to the boiling point of
the first effect by external means, what
will be the change in steam consumption
of the evaporator unit? For the purpose of
calculation, the latent heat of the vapours
and of the steam may both be taken as
2230 kJ/kg
Ад
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correct the shaft misalignment in a cars transmission system, determine the offset distance required to correct the shaft misalignment of 4 degrees in a rotating system. shaft diameter is 4cm.
Chapter 48 Solutions
Tech Manual for Erjavec's Automotive Technology: A Systems Approach
Ch. 48 - What is the difference between a passive and an...Ch. 48 - Prob. 2RQCh. 48 - Describe the three types of safing sensors.Ch. 48 - Prob. 4RQCh. 48 - True or False? The air bag diagnostic monitor...Ch. 48 - True or False? The powdery substance released from...Ch. 48 - True or False? When servicing the steering wheel...Ch. 48 - Which of the following statements about the SRS...Ch. 48 - Describe the two basic types of passenger weight...Ch. 48 - What type of scat belt operates automatically with...
Ch. 48 - Which of the following is false? The air bag...Ch. 48 - List at least five service precautions that must...Ch. 48 - Prob. 13RQCh. 48 - Which of the following statements about two-stage...Ch. 48 - Which of the following statements about seat belt...Ch. 48 - Prob. 1ASRQCh. 48 - Technician A says that seat belt webbing should be...Ch. 48 - Technician A says that the module assembly will...Ch. 48 - While testing seat belt retractors: Technician A...Ch. 48 - Technician A checks the clockspring electrical...Ch. 48 - Technician A removes the positive battery cable...Ch. 48 - Technician A says that ignition of the air bag...Ch. 48 - Technician A says that the steering column...Ch. 48 - While diagnosing a seat belt that will not buckle:...Ch. 48 - While diagnosing the cause of a constant SRS...
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