BIOS 255 Week 1 Case Study

Q.1 a. Repeatability and reproducibility are ways of measuring precision, particularly in the field of engineering. i. What is an engineer's expectation when performing repeatability or reproducibility? ii. State a difference between repeatability and reproducibility in an experiment? b. Figure Q.1 shows the measurement data of two types of thermal transducers namely thermocouple. Турe E Туре К 6.8 4.2 20 40 60 80 100 Temperature Difference (°C) Voltage Output (mV)

An auxiliary power unit (APU) is a relatively small, self-contained generator used in aircraft to start the jet engines, usually with compressed air, and to provide electricity, hydraulic pressure, and air conditioning while the aircraft is on the ground. It is known that 1 out of 200 tests performed in APU results in a failure. What is the probability that the failure occurs at the 20th flight test?.   Don't use chat gpt

Macro farms Ltd can purchase two types of fertilizer which contain the following percentage                                        Nitrate        Phosphate       Potash                 Type X              18                    5                      2                  Type Y               3                   2                       5 For certain type of crop, the following minimum quantities (kg) are required                                      Nitrate         Phosphate      Potash                                         100                 50                  40               Type X cost GHS10 per kg and type Y cost GHS5 per kg. The company currently buys 1,000 kg of each type and wishes to minimize it expenditure on fertilizers.Required 1. What is the minimum expenditure that can be incurred on fertilizer?  2. Find the savings the company can make by switching from it current policy to your recommendation.

10:45 PM | 5.7KB/s E expert.chegg.com/ex Chegg + Time remaining: 00:06:48 Vo 4G+ LTE Answer Skip Exit 10 26 Chemistry 1. You are throwing a fondue party! You need to heat 800.0 mL of vegetable oil from 20 to 190.0°C using an ethanol burner. Assuming a perfect transfer of heat from the burner into the oil, what mass of ethanol would be required (Note - ethanol has a molar enthalpy of -1277 KJ/mol)? Assume your kitchen is at SATP, vegetable oil has a density of 0.920 g/mL and the specific heat capacity of vegetable oil is 2.000 J/g °C.

A research team is interested in the difference between serum uric acid levels in patients with and without Down's syndrome. In a large hospital for the treatment of the mentally retarded, a sample of 12 individuals with Down's syndrome yielded a mean of 4.5 mg/100 ml. In a general hospital a sample of 15 normal individuals of the same age and sex were found to have a mean value of 3.4 mg/100 ml. If it is reasonable to assume that the two populations of values are normally distributed with variances equal to 1 and 1.5, find the 95 percent confidence interval. (3 decimal places) lower limit = upper limit =

The simple dynamic method is used to measure kļa in a fermenter operated at 30 C and 1 atm pressure. Data for the dissolved oxygen concentration as a function of time during the reoxygenation step are as follows: Time (s) CAL (% air saturation) 10 43.5 15 53.5 20 60.0 30 67.5 40 70.5 50 72.0 70 73.0 100 73.5 130 73.5 (a) Calculate the value of kla.

O Estimate the MRR (in cc/sec) of an alloy containing 18% cobalt, 62% nickel and 20% chromium during ECM with current of 500 ampere. The density of the alloy is 8.28 g/cc. The following data is available. Metal Gram atomic weight Velency Cobalt 58.93 Nickel 58.71 2 Chromium 51.99 Assume Faraday's constant is 96500 coulombs/ mole.

ANSWERS ARE DOWN BELOW

9:43 am Fri 24 Dec * 62% + : 0 King Abdul Aziz University Thermofluids AE300 Aero. Eng. Dept Faculty of Engineering Assignment 6 I/II law, Entropy, Cycles Handwritten assignment. Detailed answers are expected. Use your university ID. What is a pure substance? Write any four examples of pure substance. Draw tv and Pv diagram of water showing critical pressure and temperature magnitudes. Define specific heats. Differentiate between specific heats at constant pressure and constant volume. Give their examples. Write the values of cp, cv, R, and y for air and combustion products. 1. 2. 3. A 0.2 m³ vessel contains 120+last two digits kg of water at 90 ° C. Determine pressure, specific and total internal energy, specific and total enthalpy, and specific and total entropy. A vessel contains 10 kg of water at 200 kPa. Determine pressure, specific and total internal energy, specific and total enthalpy, and specific and total entropy. Consider 5 different cases/states: T= 30 ° C 4. а. b. T= Tsat…

e ll 42% A 16:33 docs.google.com/forms 59 A musical note on a piano has a frequency of 31 Hz. If the tension in the 2-m string is 308 N, and one-half wavelength occupies the string, what is the mass of the wire? 0.031 kg 0.040 kg 0.047 kg 0.019 kg 0.024 kg A simple pendulum is set into motion at two different times with different initial conditions. The first time: the bob is in its equilibrium position and

12:30 Done Edit A 24.6 2 resistor found experimentally. in Ohm's law experiments, if its actual value is equal to 24 Q, then the percentage error in R is Select one: a. 0.025% b. 2.5 % c. 3.3% d. 0.033% Loay Aljboor 2020/11/13

2. For each of the situations described below, use an initial value problem to model the situation. Clearly define any variables and functions used. Do not solve the initial value problems. a. A 60kg ball is released from rest 3km above the Earth. Its drag force has a proportionality constant of 50 . Model its velocity as a function of time. m b. Air conditioning is turned off in an empty building. Initially, at 6PM, it has an interior temperature of 60°F. The building has a time constant of 4 hours. (Note: This is the time constant, not the constant of proportionality in Newton's Law.) The outdoor temperature fluctuates sinusoidally, reaching a maxmimum of 100°F at noon and a minimum of 60°F at midnight every day. Assume there are no heating or cooling effects on the build aside from Newton's Law of Cooling. Model the building's temperature as a function of time.

I need answer within 5 minutes please please with my best wishes

What is Qh and Qc based on the table

At a pressure of 0.01 atm, determine (a) the melting temperature for ice, and (b) the boiling temperature for water. You might want to use Animated Figure. (a) i °C (b) і °C

/MECH%202013%20-%20Dr.%20James%20Duffy%20-%20August%20Assessm / 14 + | B O 78% Fig. T(a) (b) Answer each of the following for the circuit shown in Fig. 1(b) when the spring in valve 1S3 fails (will not extend) after the first activation of valve 1S3. Describe the problem that would result for the second and subsequent activations of (ii) What is the name given to this type of problem? 1A 182 183 課 1V2 1V1 1S2 1S3 2 1S12 Fig. 1(b) (c) Identify two reasons why indirect control would be used instead of direct control in electropneumatics. (d) Name the different types of hydraulic relief valves and state the main operation difference Smarks) between the two types. Page 2 of 14 MacBookAir

2. The results from a settling column test performed on a municipal sewage from a certain town were as presented below. The experiments were conducted on a sample of sewage which is sieved through a 1.2 mm mesh to remove gross solids that would block valves. 501 of the sample weighed 1.352 gm. After drying. Sampling Time (min.) 0 60 180 360 Experimental results for amount of SS remaining in the sample (mg/l) Sampling depth (cm) 100 230 150 118 90 200 230 150 143 115 300 230 159 147 134 400 230 157 152 145 The sewage treatment work incorporates two primary settlement tanks each of a diameter of 25 m. The sewage flow to the tanks is 0.3 m³/s. Find the percentage expected SS removal at the works.

36% D 10:32 ص dynamic lec 2.pdf Q Question 2: The acceleration function of an object doing curvilinear motion is a = {(-0.2)i+2j+1.5k} m/s², where t is in s. If its initial velocity vo 8i m/s, and initial position is at the origin, determine the magnitude of its velocity when t = 3 s. = (a) 2.57 m/s Asiacell . (b) 4.06 m/s (c) 14.7 m/s (d) 10.3 m/s Quartion 3: The acceleration function of an object doing تم

11.93 Engineers are examining how shock absorber designs affect the displacement of a mountain biker's hip after she lands from a jump. Immediately after the jump, the x and y locations of her hip can be described and y(t) = 3.5 +0.1 e¯0.3t sin where x and y are expressed in feet and t is expressed in seconds. by x(t) = 20t+0.2 sin (4t) and y(t) = (¹), 3 3 Plot the path of the hip for the time interval 0 ≤ t ≤ 3 s and determine the hip's vertical position and the components of the hip velocity at t = 2 s.

A quartz mixture is screened through a standard 14 mesh screen. The mass of feed, oversize and undersize are given below in the table. MeshDiameter Mass (kg) No. (mm) FeedoversizeUndersize 3.3 5 8 2.4 24 10 1.7 38 49 19 14 1.2 25 15 36 20 0.8 15 25 28 0.6 3 1 35 0.4 3 6. 65 0.2 Pan 3 Calculate screen effectiveness.

Sling Psychrometer Readings (use the table on the next page to find the Relative Humidity) Trial Outside conditions Wet Bulb Temperature Dry Bulb Temperature Relative Humidity % 1 Mostly Sunny 14 C 20 C   2 Partly cloudy 16 C 20 C   3 Sunny 10 C 22 C   4 Cloudy 22 C 22 C   PART A: Using the data above, if the Dry and Wet Bulb Temperatures are close to each other, what does that mean about the Relative Humidity? What does the Dry Bulb Temperature relate to? On a day that it is sunny outside, would you expect the wet and dry bulb temperature to be close to, or far from each other? PART B: If the Dewpoint Temperature and Temperature are far from each other, what does that mean about the relative humidity? On a day that it is raining, would you expect the Dewpoint Temperature and Temperature to be close to each other, or far from each other?

4 /8 100% MTH004- MAIN- TERM 2- SEMESTER 1 2020 -2021 Page كلية عمان البحرية الدولية INTERNATIONAL MARITIME COLLEGE OMAN Section B (90 minutes) (7) Question 1 If a manufacturer sells x units of a certain product, revenue R and cost C (in dollars) are given by R = 20x C = 2000 +8x + 0.0025x² use the fact that Profit = Revenue - Cost to determine the number of units the manufacturer should sell to enjoy a profit of at least $2400. FMT 自 e

Please solve this question

Respond with TRUE if the symbol of the valve shown below is drawn correctly Select one: True False