Explore topic-wise MCQs in Electronics & Communication Engineering.

This section includes 495 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics & Communication Engineering knowledge and support exam preparation. Choose a topic below to get started.

351.

To determine whether the test statistic of ANOVA is statistically significant, it can be compared to a critical value. What two pieces of information are needed to determine the critical value?

A. Sample size, number of groups
B. Mean, sample standard deviation
C. Expected frequency, obtained frequency
D. MSTR The treatment mean square (MSTR), Mean Square Error (MSE)
Answer» B. Mean, sample standard deviation
352.

A histogram ordered by frequency of occurrence that shows how many resultswere generated by each identified cause is:

A. Statistical Histogram
B. Juran Histogram
C. Fishbone Diagram
D. Pareto Diagram
Answer» C. Fishbone Diagram
353.

Cost of quality is a concept that includes:

A. the cost necessary for ensuring conformance to requirements
B. the life cycle cost of the project
C. al research and development costs related to the project
D. only the cost of the quality control function
Answer» B. the life cycle cost of the project
354.

As variability due to chance decreases, the value of F will

A. increase
B. stay the same
C. decrease
D. can't tell from the given information
Answer» B. stay the same
355.

Cause and Effect Diagram can be used in the ____ and ____ step of DMAIC.

A. Define, Measure
B. Analyze, Control
C. Analyze, Improve
D. Define, Improve
Answer» D. Define, Improve
356.

80% of the problems are found in 20% of the work is a concept of:

A. Edward Deming
B. Philip Crosby
C. Juran
D. Pareto
Answer» E.
357.

A ______________ diagram shows the location of defects in any unit. This diagram is usedin the analyze step of DMAIC.

A. Affinity
B. Relations
C. Defect Concentration
D. Scatter
Answer» D. Scatter
358.

Consider that for a particular process, the p has shifted to .4 and the process has gone out ofcontrol. The corresponding value of beta is found to be .3356. The value of Average Run Length is:

A. 2.5
B. 1.5 ((1/1-beta) provides us with average run length)
C. 1.0
D. 2.7
Answer» C. 1.0
359.

Quality assurance is

A. top management's intention regarding quality
B. functions determining implementation of the quality policy
C. actions to provide confidence of satisfying quality requirements
D. responsibilities and processes which implement quality management
Answer» D. responsibilities and processes which implement quality management
360.

Nonconformance is an expense of:

A. Profit of quality
B. Defects of quality
C. Quality of product
D. Cost of quality
Answer» E.
361.

Which is not a commonly used quality management tool?

A. Fishbone diagram
B. CSSR report
C. Pareto chart
D. None of the above (all are commonly used)
Answer» E.
362.

Which of the following points are not true when conducting a multiple regression?

A. Multiple regression can be used to assess quadratic relationships
B. Data must be homogeneous for a multiple regression
C. Data must be normally distributed for multiple regression
D. Multiple regression can be used to assess linear relationships
Answer» B. Data must be homogeneous for a multiple regression
363.

What is the Sum of Squares of Number of Fertilizers (B)?

A. 6.075
B. 39.48
C. 7.19
D. 3.89
Answer» D. 3.89
364.

X bar should never be interpreted when:

A. R chart shows out of control points
B. X bar chart shows out of control points
C. The process mean is not known
D. None of the above
Answer» B. X bar chart shows out of control points
365.

Self-inspection by the individual performing the work is used to achieve quality in aproduct. The advantages of self-inspection include ______________.

A. immediate feedback to permit adjustments to the process
B. early identification of errors prior to further integration
C. minimization of end product repairs and material waste
D. all of the above
Answer» E.
366.

The chi-square test can be too sensitive if the sample is:

A. very small
B. very large
C. homogeneous
D. predictable
Answer» C. homogeneous
367.

Best price or zero cost is

A. To keep defective products aside, ensuring they
B. do not reach the customers
C. Prerogative cost
D. To count, grade, and rework
Answer» D. To count, grade, and rework
368.

You carried out an ANOVA on a preliminary sample of data. You then collected additional data from the same groups; the difference being that the sample sizes for each group were increased by a factor of 10, and the within-group variability has decreased substantially. Which of the following statements is NOT correct?

A. The degrees of freedom associated with the error term has increased
B. The degrees of freedom associated with the treatment term has increased
C. The Residual Sum of Squares (SSE) has decreased
D. The F-Value calculated from the data (F-Value) has changed
Answer» C. The Residual Sum of Squares (SSE) has decreased
369.

Taguchi suggested that loss in a process is'increased with increase in which of thefollowing?

A. Specifications
B. Standards
C. Competition
D. Variability
Answer» E.
370.

Quality fulfills a need or expectation that is:

A. Explicitly stated
B. Implied
C. Legally required
D. All of the above
Answer» E.
371.

In factorial designs, the response produced when the treatments of one factor interact withthe treatments of another in influencing the response variable is known as

A. the main effect
B. interaction
C. replication
D. none of these
Answer» C. replication
372.

Establishing measurements based on customer needs for optimizing product design is knownas ______________

A. Quality planning
B. quality improvement
C. quality control
D. Quality planning (Actual answer is Quality planning roadmap)
Answer» E.
373.

The process of monitoring specific project results to determine if they comply withrelevant quality standards is called:

A. Quality Assurance
B. Quality Control
C. Quality Planning
D. Quality Review
Answer» C. Quality Planning
374.

The 14-step process to quality improvement is a progressive to total involvement of everyone in a company toward the production of quality products and services. The 14-steps do not include ______________.

A. management commitment
B. quality improvement team
C. quality measurement
D. goal achievement measures
Answer» E.
375.

–––––––– are the charts that identify potential causes for particular quality problems.

A. Control Chart
B. Flow chart
C. Cause and Effect Diagram
D. Pareto chart
Answer» D. Pareto chart
376.

In factorial designs, the number of times a condition is noted is called:

A. Randomization
B. Factorization
C. Replication
D. None of These
Answer» D. None of These
377.

A result is called "statistically significant" whenever

A. The null hypothesis is true.
B. The alternative hypothesis is true.
C. The p-value is less or equal to the significance level.
D. The p-value is larger than the significance level.
Answer» D. The p-value is larger than the significance level.
378.

An unbiased dice is rolled once. The probability of getting a number greater than 4 is:

A. 1/4
B. 1/6
C. 1/2
D. 1/3
Answer» E.
379.

Cause & Effect diagram used toi. Identify & organize possible causes of problem ii. Identify possible causes of solution iii. Identify possible causes of problem & determining its relation The correct order is

A. i only
B. i & iii
C. ii & iii
D. i, ii & iii
Answer» C. ii & iii
380.

Quality is:

A. Zero defects found
B. Conformance to requirements
C. The totality of features and characteristics of a product or service that bear on its ability to satisfy stated or implied needs
D. b and c
Answer» E.
381.

Typically in a cause and effect diagram, the ______________ is used for classification ofcauses in the service industry.

A. 5Ms
B. 8Ps
C. 5Ss
D. 6Ps
Answer» D. 6Ps
382.

Ease of repair is associated with ______________ dimension of quality.

A. Serviceability
B. Performance
C. Durability
D. Perceived Quality
Answer» B. Performance
383.

Lots for acceptance sampling should be ______________ and ______________.

A. Homogeneous, Large
B. Heterogeneous, Small
C. Homogeneous, Small
D. Heterogeneous, Large
Answer» B. Heterogeneous, Small
384.

A larger standard deviation for a normal distribution with an unchanged mean indicates that‘the distribution becomes:

A. narrower and more peaked
B. flatter and wider
C. more skewed to the right or left
D. a change in the standard deviation does not change the shape of the distribution
Answer» C. more skewed to the right or left
385.

Quality planning is:

A. identifying which quality standards are relevant to the project and determining how to satisfy them
B. monitoring specific project results to determine if they comply with relevant quality standards and identifying ways to eliminate causes of unsatisfactory performance
C. evaluating overall project performance on a regular basis to provide confidence that the project will satisfy the relevant quality standards
D. taking action to increase the effectiveness and efficiency of the project so as to provide added benefits to both the performing organization and the project customer
Answer» B. monitoring specific project results to determine if they comply with relevant quality standards and identifying ways to eliminate causes of unsatisfactory performance
386.

What statistic is used to check the significance of the Kruskal-Wallis test?

A. Mean rank
B. Partial
C. t-value
D. Chi squared
Answer» E.
387.

Let there be a data set {200,201,202,203,204,205,206,207,208}. This data set can berepresented using stem and leaf where the ______________ is 20 and the ______________ is {0,1,2,3,4,5,6,7,8}.

A. Stem, Leaf
B. Leaf, Stem
C. Tree, Stem
D. Tree, Leaf
Answer» B. Leaf, Stem
388.

Kaizen is a Japanese term meaning ______________

A. continuous improvement
B. Just-in-time (JIT)
C. a fishbone diagram
D. setting standards
Answer» B. Just-in-time (JIT)
389.

Some organizations today are using "six sigma", to set the upper and lower limitson control charts rather than the traditional sigmas.

A. two
B. three
C. four
D. five
Answer» C. four
390.

The dimension of reliability is concerned with:

A. How easy it is to repair the product
B. How long does the product last
C. Will the product do the intended job
D. How often does the product fail
Answer» E.
391.

When a product or service completely meets a customer's requirements:

A. quality is achieved
B. cost of quality is high
C. cost of quality is low
D. the customer pays the minimum price
Answer» B. cost of quality is high
392.

What is the purpose of a multiple regression?

A. To predict scores on a dependent variable from scores on a single independent variable
B. To predict scores on an independent variable from scores on a single dependent variable
C. To predict scores on an independent variable from scores on multiple dependent variables
D. To predict scores on a dependent variable from scores on multiple independent variables
Answer» D. To predict scores on a dependent variable from scores on multiple independent variables
393.

Identify the charts which might give an indication of process going out of control (beforethe process has actually changed)

A. X bar and c
B. P and c
C. R and u
D. X bar and R
Answer» E.
394.

A structured tool, usually industry or activity specific, used to verify that a set of required steps has been performed is called:

A. Quality Policy
B. Check list
C. Trend analysis
D. Pareto diagram
Answer» C. Trend analysis
395.

Quality control methods extend beyond the external characteristics of the productor components of the product. The types of testing of the product or components include ______________.

A. operator, maintainer, and environmental
B. stress, destructive, and operating
C. in-house, public, and private
D. laboratory, destructive, and non-destructive
Answer» D. laboratory, destructive, and non-destructive
396.

The concept of zero inventory is called:

A. Six sigma
B. Continuous improvement
C. Just in Time
D. Zero defects
Answer» D. Zero defects
397.

"Poka-yoke" is the Japanese term for ______________

A. Card
B. Fool proof
C. Continuous improvement
D. Fishbone diagram
Answer» C. Continuous improvement
398.

Which of the following is NOT true about the standard error of a statistic?

A. The standard error measures, roughly, the average difference between the statistic and the population parameter.
B. The standard error is the estimated standard deviation of the sampling distribution for the statistic.
C. The standard error can never be a negative number.
D. The standard error increases as the sample size(s) increases.
Answer» E.
399.

The error deviations within the residual sum of squares (SSE) statistic measure distances:

A. within groups
B. between groups
C. between each value and the grand mean
D. none of these
Answer» B. between groups
400.

A quality program within a project should be based on ______________ of errors toimprove productivity along with quality levels.

A. early detection
B. early correction
C. late detection
D. prevention
Answer» E.