Engineering
Engineering, 12.02.2020 04:59, crjjk01

A group of students wish to determine the density of a cylinder to be used in a de-sign project. They plan to determine the density from measurements of the cylindersmass, length, and diameter, which have instrument resolutions of 0.1 lbm, 0.05 in., and0.0005 in., respectively. The balance used to measure the weight has an instrument uncertainty (accuracy) of 1 %. The rulers used to measure the length and diameterpresent negligible instrument uncertainties. Nominal values of the mass, length, anddiameter are 4.5 lbm, 6.00 in., and 4.0000 in., respectively.
(a) Estimate the zero-order uncertainty in the determination of the density.
(b) Which measurement contributesthe most to this uncertainty?
(c) Estimate the design-stage uncertainty in the deter mination of the density.

answer
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, settasav9641
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
image
Engineering, 04.07.2019 18:10, salazjlove
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
image
Engineering, 04.07.2019 18:20, maustin5323
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
image
Engineering, 04.07.2019 18:20, AnonymousLizard52303
A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.
Answers: 3
Do you know the correct answer?
A group of students wish to determine the density of a cylinder to be used in a de-sign project. The...

Questions in other subjects:

Konu
Geography, 18.09.2019 03:30
Konu
Spanish, 18.09.2019 03:30
Konu
Mathematics, 18.09.2019 03:30