AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
7th Edition
ISBN: 9780357096789
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 17, Problem 2ASRQ
Technician A says that the reserve rating of a battery is the amount of steady current that a fully charged battery can supply tor 20 hours without the voltage falling below 10.5 volts. Technician B says that ampere-hour ratings state how many hours the battery’ is capable of supplying 25 amperes. Who is correct?
- Technician A
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A pilot process is being planned to produce antibiotic P. Antibiotic P is a compound secreted by microorganism A during the stationary phase. To produce P, substrate S is required. The growth of microorganism A follows the Monod equation, with a maximum specific growth rate $\mu_m = 1 h^{-1}$ and a half-saturation constant $K_s = 700\ mg/L$.The pilot process uses a chemostat with a working volume of $1000\ L$. In this chemostat, the outflow is processed to separate microorganisms, which are then concentrated tenfold and recycled. A sterile medium containing $15\ g/L$ of substrate is supplied at a flow rate of $100\ L/h$, while the recycled flow (concentrated) contains $5\ g/L$ and is also fed into the chemostat.Microorganism A yields $0.5\ g$ of biomass per $1\ g$ of substrate consumed $(Y^M_{X/S} = 0.5\ g\ A/g\ S)$, and its death rate $(k_d)$ is negligible. Additionally, $1\ g$ of microorganism A produces $0.05\ g$ of antibiotic P per hour $(q_P = 0.05 g\ P/h\cdot g\ A)$, and $1\ g$…
In the production of ethyl acetate via reactive distillation, the column operates at 5 bar with an equimolar feed (ethanol + acetic acid) at 80°C. The reaction follows: \[CH_3COOH + C_2H_5OH \rightleftharpoons CH_3COOC_2H_5 + H_2O \quad (K_{eq} = 4.2 \text{ at } 80°C)\] Given: - NRTL parameters for all binary pairs - Tray efficiency = 65% - Vapor-liquid equilibrium exhibits positive azeotrope formation Calculate the exact minimum reflux ratio required to achieve 98% ethyl acetate purity in the distillate, assuming: 1) The reaction reaches equilibrium on each tray 2) The heavy key component is water
In a multi-stage distillation column designed to separate a binary mixture of ethanol and water, the mass flow rate of the feed entering the column is \( F \), and the distillate product flow rate is \( D \). The reflux ratio \( R \) is defined as the ratio of the liquid returned to the column to the distillate flow rate. For the ideal case, where the column operates at maximum efficiency, determine the **minimum reflux ratio** \( R_{\text{min}} \) when the relative volatility \( \alpha = 1.5 \).
Chapter 17 Solutions
AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
Ch. 17 - Define an electrolyte and its role in battery...Ch. 17 - Prob. 2SACh. 17 - How is a battery leakage test conducted?Ch. 17 - Describe parasitic draw.Ch. 17 - How can you identify the high-voltage system in...Ch. 17 - How many volts are present in a fully charged...Ch. 17 - What is meant by the term specific gravity?Ch. 17 - What causes gassing in a battery?Ch. 17 - List five things that shorten the life of a...Ch. 17 - True or False? All electrochemical batteries have...
Ch. 17 - Prob. 2TFCh. 17 - True or False? A batteny is an electromechanical...Ch. 17 - True or False? The BCI determines battery ratings...Ch. 17 - Which of the following statements about battery...Ch. 17 - Which of the following statements about battery...Ch. 17 - Prob. 1ASRQCh. 17 - Technician A says that the reserve rating of a...Ch. 17 - Technician A says that battery straps should be...Ch. 17 - Technician A says jump-starting a battery can...Ch. 17 - Prob. 5ASRQCh. 17 - Technician A says that before a battery is...Ch. 17 - Technician A says that side post terminals need to...Ch. 17 - A vehicles battery goes dead after sitting for two...Ch. 17 - Technician A always wears safety glasses or...Ch. 17 - While discussing the results of a load test:...
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- Natural gas having a specific gravity relative to air of 0.60 and a viscosity of 0.011 cP is flowing through a 6-in. Schedule 40 pipe in which is installed a standard sharp-edged orifice equipped with flange taps. The gas is at 100°F and 20lb/in? abs at the upstream tap. The manometer reading is 46.3 in. of water at 60°F. The ratio of specific heats for natural gas is 1.30. The diameter of the orifice is 2.00 in. Calculate the rate of flow of gas through the line in cubic feet.arrow_forwardصورة من s94850121arrow_forward11:01 ☑ canvas.ucsd.edu 口 : ... Page 1 > of 2 Q - ZOOM + 4. Consider the two separate sets of measured data for a silt-loam soil measured by Mualem (1976): (1) suction versus water content, and (2) suction versus relative permeability of unsaturated soil, k/ks. Assume that 0s 0.396, 0res = 0.131, and Ks=5.74×10-7 m/s. a. Using the method of least squares in Excel, compute the best-fit values for αNG (kPa¹) and nvg for the van Genuchten (1980) relationship for data set # 1 (assume m = 1-1/nvG). See the example spreadsheet in the homework folder under the files section of Canvas for help in performing this calculation. b. Repeat part (a) and estimate the λ and ac parameters for the Brooks and Corey (1964) SWRC for data set #1. Note that you may need to include an "if" statement at the air entry suction. c. Plot the data for the SWRC versus the fitted van Genuchten (1980) and Brooks and Corey (1964) curves. Which relationship matches the capillary pressure data better (BC or VG)? Explain…arrow_forward
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