EMT Practice Test

1. Question Content...

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Question1: The "least squares method" is used in

Question2: The failure rate model above is used to show a typical relationship of many parts between their failure rate and the time in service. The reliability function for period "B" is BEST represented by

Question3: A process has been experiencing problems lately. The operators charting the process have identified the cause to be due to a change in incoming materials. This problem is

Question4: When trying to find all possible causes of a problem, which of the following tools would be useful?
. Systematic troubleshooting and brainstorming.
. Fishbone diagrams and histograms.
. Checklists and scatter diagrams.
. Control charts and graphs.

Question5: Normally, complaint data for both a product or service organization should provide

Question6: When trying to find all possible causes of a problem, which of the following tools would be useful?
I. Systematic troubleshooting and brainstorming.
II. Fishbone diagrams and histograms.
III. Checklists and scatter diagrams.
IV. Control charts and graphs.

Question7: Of the services listed below, which one performed by design engineering is of particular interest to QA personnel?

Question8: The design function which assigns probability of failures between components or subsystems is called

Question9: The design function which assigns probability of failures between components or subsystems is called

Question10: A company is planning to completely change its employee performance, appraisal and reward system.
Which of the following is NOT viable for consideration in the new system?

Question11: The equation below represents the:

Question12: An experiment with two factors, in which all levels of one variable are run at each level of the second variable, is called a

Question13: A normal (Gaussian) distribution curve is

Question14: Reliability prediction is
I. The process of performance estimation.
II. The process of estimating the probability that a product will perform its intended function for a stated time.
III. The process of telling "how you can get there from here".

Question15: An electronics firm was experiencing high rejections in their multiple connector manufacturing departments. "p" charts were introduced as part of a program to reduce defectives. Control limits were based on prior history, using the formula:

P' is the historical value of percent defective and n is the number of pieces inspected each week. After six weeks, the following record was accumulated

1,000 pieces were inspected each week in each department. Which department(s) exhibited a point or points out of control during this period (round off calculations to nearest tenth of a percentage point)?

Question16: The power of efficiency in designed experiments lies in the

Question17: Typically Pareto diagrams are used for which of the following reasons?
. To display the significant few categories. . To compliment attribute data charting. . To eliminate insignificant categories.
. To focus attention in priority order.

Question18: What is the lower control limit for proportion defective if the average daily production is 5000 units and the average fraction defective is 0.02?

Question19: Which of the following is a valid null hypothesis?

Question20: According to Tchebysheff's theorem what % of measurements must lie within 2.5 standard deviations of the mean?

Question21: The first and most important step, in establishing a good corporate quality plan is

Question22: Which of the following list of basic NDT techniques are X ray types?

Question23: One-way analysis of variance is MOST similar in its objectives to

Question24: Which of the following problem-solving tools is a column graph which displays a static picture of the process?

Question25: A bin contains 40 pills with a weight of 3.1 gm. each, 30 pills weighing 3.2 gms each and 10 pills weighing 3.3 gms each. The weight of an average pill is found from

Question26: Which of the following are the MOST logical reasons for providing source inspection?
I. The supplier has consistently shown poor out-going quality.
II. The key inspection points are hidden after assembly at the suppliers' plant.
III. The supplier requests the inspection to save them potential shipping expenses.
IV. The criticality of the product warrants it.

Question27: Given the data below is normally distributed, and the population standard deviation is 3.1, what is the 90% confidence interval for the mean?
22, 23, 19, 17, 29, 25

Question28: The expression below is which of the following?

Question29: Which of the following distributions models events that have 2 possibilities on each trial?

Question30: Analysis of data on all product returns is important because
. Failure rates change with length of product usage.
. Changes in design and in customer use are often well reflected.
. Immediate feedback and analysis of product performance becomes available.

Question31: Which of the following is NOT considered a prevention cost?

Question32: A box contains 27 black and 3 red balls. A random sample of 5 balls is drawn without replacement. What is the probability that the sample contains one red ball?

Question33: In order to implement a continuous improvement strategy, a company may institute a steering committee or improvement council. Which of the following would generally NOT be a task performed by this council?

Question34: In the failure rate model shown below, which one of the sections represents the period when catastrophic failures are likely to occur?

Question35: A process is in control with a defect rate of 0.2%. A sampling plans calls for 30 items to be selected at random, and for the process to be shut down and corrected if any defects are found. How often will the process be shut down without a change in the defect rate?

Question36: What is the key ranking difference between the Deming philosophy and the Malcolm Baldrige award criteria?

Question37: Which of the following list of basic NDT techniques are X ray types?

Question38: Failure mode, effect, and criticality analysis, (FMECA) is primarily for the purpose of

Question39: In order to implement a continuous improvement strategy, a company may institute a steering committee or improvement council. Which of the following would generally NOT be a task performed by this council?

Question40: The critical value of the t-distribution is

Question41: The first and most important step, in establishing a good corporate quality plan is

Question42: When requesting "worst case" design analysis, you expect the reliability group to

Question43: Given that the population standard deviation is 6.8, what sample size is required to be 90% confident that the estimated mean has an error less than 0.02?

Question44: Which of the following quality system provisions is of the greatest concern when preparing an audit checklist for a vendor qualification system audit?

Question45: A cause and effect diagram is also called which of the following?

Question46: Periodically, a sample of 20 items are randomly selected from a population that is normally distributed, the average is computed, and plotted. Which of the following statements is correct?
I. The average of the logarithms of the values is lognormally distributed.
II. The standard deviation of the averages is equal to the standard deviation of the individuals divided by the square root of 20.
III. The variance of the averages is equal to the variance of the individuals divided by the square root of 20.

Question47: To be effective, a corrective and preventive action system must have

Question48: An audit will be viewed as a constructive service to the function which is audited when it

Question49: Which of the following are TRUE statements regarding the use of visual inspection?
I. Reference standards can be used.
II. It provides consistency between inspectors.
III. It is relatively expensive.
IV. It can be quickly performed.

Question50: A bin contains 40 pills with a weight of 3.1 gm. each, 30 pills weighing 3.2 gms each and 10 pills weighing 3.3 gms each. The weight of an average pill is found from

Question51: When used together for variables data, which of the following pair is the MOST useful in preparing control charts?

Question52: A process is in control with a defect rate of 0.2%. A sampling plans calls for 30 items to be selected at random, and for the process to be shut down and corrected if any defects are found. How often will the process be shut down without a change in the defect rate?

Question53: What does a corrective action do to prevent an existing noncomformity, defect or undesirable situation from recurring?

Question54: The primary reason that nonconforming material should be identified and segregated is

Question55: Two advantages of process mapping are the ability to
I. Visualize the process being described.
II. Discover manufacturing problems only.
III. Discover quality problems only.
IV. Check current processes for duplication or redundancy.

Question56: Which of the following statements BEST describes a bimodal distribution?

Question57: Determine the coefficient of variation for the last 500 pilot plant test runs of high temperature film having a mean of 900 Kelvin with a standard deviation of 54.

Question58: Which of the following quality gurus was very critical of merit-pay and individual bonuses?
He discouraged management by objectives and the ranking of employees by performance.

Question59: A box contains 27 black and 3 red balls. A random sample of 5 balls is drawn without replacement. What is the probability that the sample contains one red ball?

Question60: Quality audits do NOT provide

Question61: A vendor may be audited both before and during the execution of a contract. During such a vendor
audit, the focus may be directed at the management and resource management of the company. Which of the following areas would be EXCLUDED during such an audit?

Question62: An electronics firm was experiencing high rejections in their multiple connector manufacturing departments. "p" charts were introduced as part of a program to reduce defectives. Control limits were based on prior history, using the formula:

P' is the historical value of percent defective and n is the number of pieces inspected each week. After six weeks, the following record was accumulated

1,000 pieces were inspected each week in each department. Which department(s) exhibited a point or points out of control during this period (round off calculations to nearest tenth of a percentage point)?

Question63: A comprehensive corrective action program is initiated at a large company. Input for CARs are received from customers, internal and external audits, material review reports and other sources. Which two of the following groups would usually administer and control the CAR process?
I. Management review team.
II. Quality department.
III. Corrective Action Board.
IV. Material Review Board.

Question64: Maintainability is

Question65: Writing and establishing process control procedures is

Question66: The basic elements of an ultrasonic test systems do NOT include which of the following?

Question67: A two-way analysis of variance has r levels for one variable and c levels for the second variable with 2 observations per cell. The degree of freedom for interaction is

Question68: Which of the following quality system provisions is of the greatest concern when preparing an audit checklist for a vendor qualification system audit?

Question69: What is the highest form of partnering with employees?

Question70: What distribution is used to determine the OC curve for an attributes sampling plan?

Question71: Given the data below, what is the 90% confidence interval for the variance?
22, 23, 19, 17, 29, 25

Question72: Which of the following are likely to be positive actions in obtaining a supplier's commitment to quality improvement?
I. Involving the supplier early in the product development stage.
II. Partially reimbursing the supplier, when the product is rejected.
III. Establishing a firm schedule of required product quantities and dates.
IV. Providing meaningful and timely quality performance feedback.

Question73: Which of the following distributions have the set of all real numbers as their domain?

Question74: The Malcolm Baldrige award is open for competition among which of the following?
. Large manufacturing businesses.
. Large and small manufacturing businesses.
. Service organizations.
. Large service companies.

Question75: For TQM success, what structure sequence should be followed?
. Develop a quality policy. . Establish a quality council. . Establish strategic quality goals.
. Train for internal audits.

Question76: Corrective action requests are primarily

Question77: Which of the following are the MOST logical reasons for providing source inspection?
I. The supplier has consistently shown poor out-going quality.
II. The key inspection points are hidden after assembly at the suppliers' plant.
III. The supplier requests the inspection to save them potential shipping expenses.
IV. The criticality of the product warrants it.

Question78: A purchase order for subassemblies classified as critical must include a review by
. Quality engineering.
. The procurement department.
. Design engineering.

Question79: In most cases, an improvement team facilitator will NOT normally:

Question80: Which of the following is NOT considered a prevention cost?

Question81: A system was designed with 3 capacitors. When the system is first activated all capacitors are operating.
The system continues to operate as long as at least 1 capacitor is operating. This is an example of

Question82: Compute the upper control limit for an s chart, based on a sample size of 10, if the process is in control with a mean of 40 and a sample standard deviation of 7.

Question83: The probability of accepting a lot of unacceptable quality is known as

Question84: Which of the following is the BEST method to developing materials for a training program on the gaps in performance?

Question85: What percentage of the area under the standard normal curve is included within (+/-) 1.5 standard deviations from 0?

Question86: Which of the following would be considered the WEAKEST reason to initiate an audit?

Question87: Which of the following quantitative methods does NOT apply to the assessment of actual system/ component reliability?

Question88: Which of the following statements describes discrete data?

Question89: You have been asked to sample a lot of 500 units from vendor whose past quality has been about 2% defective. A sample of 40 pieces is drawn from the lot and you have been told to reject the lot if you find two or more parts defective. What is the probability of finding two or more parts defective?

Question90: The probability of an accident for the head event "H" given below is:

Question91: If a distribution is skewed to the right

Question92: Which of the following statements is CORRECT?

Question93: In most cases, an improvement team facilitator will NOT normally:

Question94: The maximum allowable percent defective for the process average is the

Question95: The distribution of a characteristic is negatively skewed. The sampling distribution of the mean for large samples is:

Question96: A "p" chart

Question97: Which of the following nondestructive testing methods can be used to evaluate sub-surface discontinuities in aluminum bar stock?
I. Microwave.
II. Magnetic particle.
III. Pulse echo.
IV. Eddy current.

Question98: The following measurements for a sample with dimension X are representative of a process known to be in statistical control
42, 52, 64, 45, 53, 56, 70, 57, 49, 62
Which of the following values BEST approximates the upper and lower control limits of the process capability.

Question99: The critical value of the t-distribution is

Question100: When using a control chart, a point plotting within the limits on the chart is

Question101: The sample size for a product quality audit should be

Question102: Which of the following control charts are more efficient than an X-bar chart at detecting small shifts in the mean?
. CUSUM.
. EWQR.
. EWMA.

Question103: Regardless of the distribution of the individuals, the distribution of the average of n samples will follow which distribution as n becomes large?

Question104: Which of the following is NOT a statistical level of measurement?

Question105: Which of the following is the BEST method to developing materials for a training program on the gaps in performance?

Question106: What is the highest form of partnering with employees?

Question107: Compute the upper control limit for an s chart, based on a sample size of 10, if the process is in control with a mean of 40 and a sample standard deviation of 7.

Question108: When planning quality control functions, which one of the following is MOST directly related to production of a quality product?

Question109: A comprehensive corrective action program is initiated at a large company. Input for CARs are received from customers, internal and external audits, material review reports and other sources. Which two of the following groups would usually administer and control the CAR process?
. Management review team.
. Quality department.
. Corrective Action Board.
. Material Review Board.

Question110: Which of the following statements BEST describes a bimodal distribution?

Question111: Quality audits do NOT provide

Question112: As a commonly used problem solving technique, which of the following would be the BEST application of a Pareto chart?
I. To determine when to make proactive adjustments to a process.
II. To differentiate between major and minor problem areas.
III. To gather data and to design experimental controlled changes.
IV. To evaluate the results of other problem solving techniques upon the product or service.

Question113: Which of the following problem-solving tools is a column graph which displays a static picture of the process?

Question114: The weight of paint cans is considered

Question115: Determine the coefficient of variation for the last 500 pilot plant test runs of high temperature film having a mean of 900 Kelvin with a standard deviation of 54.

Question116: What distribution is used to determine the OC curve for an attributes sampling plan?

Question117: Select the incorrect statement from among the following. The IDs of a certain piece of tubing are normally distributed with mean 1.00". The proportion of tubing with IDs less than 0.90 is

Question118: A system was designed with 3 capacitors. When the system is first activated all capacitors are operating. The system continues to operate as long as at least 1 capacitor is operating. This is an example of