he term Unplanned maintenance is defined as.......

Q: 30. A work sampling study requires 98% confidence level with 14% accuracy. How many observation are…

A: Given   Accuracy, S = 14% Down time, P = 8%                     x = 2 for 95% confidence level Find…

Q: For the Given values of 74.7, 72.1, 76.9, 77.1, 84.6 ,Calculate (i) Mean (ii)Algebraic Sum of…

A: x x x - x x - x 74.7   2.38 5.664 72.1   4.98 24.80 76.9 77.08 0.18 0.0324 77.1   0.02 0.04…

Q: From the following identify the true statement relating to the term Predictive maintenance The…

A: Predictive maintenance is a type of maintenance that monitors the performance and condition of a…

Q: Select one: O a. Error O b. Average value O C. Trend O d. Forecast Accuracy

A: Forecasting is basically making the predictions for future.

Q: 1. Sketch a diagram for the experimental apparatuses and any instrumentation and devices. 2. State…

A:

Q: Which of the following method the forecast is done by taking average of all data.

A: We are to declare which forecasting method includes all data points

Q: Briefly define the following terms (a) Systematic errors, (b) gross errors and (c) random errors.

A: Errors in Measurement  ● Here there error in Measurement will be discussed ● Systematic error, Gross…

Q: Find the depth of thread for M 22 X 4 X 50 internal thread. The depth of thread in mm is= Answer 2)…

A: (1) Given that, Dimension of internal thread, M 22×4×50M represent→Metric Thread,Pitch of the…

Q: Calculate Mean ,Median ,standard deviation and variance for measurement sets A, B and C SET A :398…

A: For Set A, Median of the given data (mid point value) = 408 Mean of the given measurements,…

Q: For a site, if the load is 4,700,000 kWh, how many turbines is required if the specifications of the…

A: Given: Load - 4700000 kWh Rotor diameter - 60 m Wind speed - 6 m/s To find: Number of turbines

Q: As an instrumentation engineer you are asked to measure pressure with accuracy rate of ±0.1%, what…

A: As an instrumentation engineer, the measure of pressure P with the accuracy rate of ±0.1% implies…

Q: Read the following statement and choose the most appropriate answers. Statement 1 Instrument is…

A:

Q: The error values in a measurement system are -5, -3, -1, -7  and it is said to be systematic error.…

A: During experimentations, Systematic errors  usually come from the measuring instruments. They…

Q: standard deviation of the resulting linear

A: Given data, Linear dimesnions,S and T are,  σs=7 μm  σT=12 μmCalculate the standard deviation of the…

Q: 1. Sketch a diagram for the experimental apparatuses and any instrumentation and devices. 2. State…

A: Solution 1:-

Q: HOME WORK 1. Calculate the maximum and minimum limits for both the shaft and hole in the following;…

A:

Q: Question 2: The cost of a machine is 6200 S and scrape value is 130 S. The maintenance costs found…

A: Given data Cost of machine (C) = 6200 Scrap value (S) = 130

Q: In Random errors ,the error will lie on either sides of the true value. Select one: O True O False

A: Let us discuss about random errors.

Q: Advantages and Disadvantages on Types of Calibration.

A: Type of Calibration Advantages Disadvantages (1) Standard addition method   (a) Multiple   (b)…

Q: Equation (1) and Equation (2) are the equations used to obtain percent extraction (%Ext). Justify…

A: Write the expression of %Ext. %Ext=Wi-WnWi×100%   ...... (1) Write the another expression of %Ext.…

Q: Differentiate probability sampling from non-probability sampling.

A: 1) Probability sampling may be a examining method, in which the subjects of the populace get an…

Q: For the Given values of 72.9, 75.6, 83.8, 84.2, 76.1,Calculate (1) Mean (1)Algebraic Sum of…

A: Mean also called as average is found by the ratio of sum of all observation to the total number of…

Q: In systematic errors ,the error will lie on either sides of the true value. Select one: O True False

A: Systematic errors will always be either higher than true value or lower than true value. Thus,…

Q: Assignment: Fill the table Type of Calibration Advantages D 1) Standard addition method (a) Multiple…

A: Type of Calibration Advantages Disadvantages (1) Standard addition method   (a) Multiple   (b)…

Q: Q.1 Explain the following: a) Productivity b) Standard Costing c) Fixed and Variable cost

A: given; (a)productivity(b)standard costing(c)fixed and variable cost

Q: In a Measurement ,the Expected value is 75 V and the measured value is 71 V. Find (iii) Absolute…

A: Given- Measured value (MV) = 75 V Expected Value (EV) = 71 V

Q: (a) A very important component of a system has a mean time between failures of 100 hr and a mean…

A:

Q: q11 The statement is True or False?

A: This statement is (False)

Q: From the following identify the true  statement relating to the term Predictive maintenance The…

A: Answer - The maintenance on machines to determine the actual time to failure and can improve the…

Q: The error values in a measurement system are 0.5, 6, 2, 1, 5 and it is said to be random error true…

A: We know that random error in measurement systems are due to unpredictable effects.

Q: outline the foundamental difference between errors that can be largely eliminateed and errors that…

A: Error- The difference between the true value and the measured value is called error. Errors are not…

Q: In Weighted Moving Average methods the Heaviest weights are assigned to the following values Select…

A: Weighted moving average method: It the method used to forecast the data. By using weights (means…

Q: ertical deviations about it is not zero. Select one:

A: given: In least square method the summation of all vertical deviations about it is not zero. Select…

Q: Give a definition for each term: trueness, calibration, uncertainty,

A:

Q: What is called the upper limit deviation es and by what formula is it calculated?

A:

Q: 2. Construct the P Chart for the following data. No.of No.of Sample Pieces defective inspectedpieces…

A: Sample No. No. of pieces inspected No. of defected pieces found UCL LCL Proportion 0 1 500 99…

Q: There are 22 machines and R repairmen in a workshop. The frequency of deterioration is determined by…

A:

Q: How the actual temperature deviates from standard temperature, that if correction due to temperature…

A: Deviation of Actual temperature from standard temperature .Given :- Error of 1 part in 5000Using…

Q: 2. A schematic representation of basic size and its deviations are given in Fig. below Calculate the…

A:

Q: s the confidence level for

A: Determine the confidence level.

Q: Chi-Square test can be used to verify the collected data's are as expected. False True

A: Chi-square test for hypothesis tests about whether your data is as expected. The basic idea behind…

Q: The following method is a Judgmental method of forecast.

A: Option (d) Qualitative forecasting method is correct option

Theory and Design for Mechanical Measurements

Measurement is a term that refers to analyzing a manufactured component regarding the degree of accuracy for dimensions, tolerances, geometric profile, roundness, flatness, smoothness, etc. Measurement always involves comparing the manufactured component or the prototype with a standard specimen whose dimensions and other parameters are assumed to be perfect and do not undergo changes with respect to time.Precisely in mechanical engineering the branch that deals with the application of scientific principles for measurements is known as metrology. The domain of metrology in general deals with various measurements like mechanical, chemical, thermodynamic, physical, and biological measurements. In mechanical engineering, the measurements are limited to mechanical specific such as length, mass, surface profile, flatness, roundness, viscosity, heat transfer, etc.

Basic principles of engineering metrology

Metrology is described as the science of measurement, precision, and accuracy. In other words, it is a method of measurement based on units and predefined standards.