Explore topic-wise MCQs in Mechanical Engineering Questions.

This section includes 115 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.

51.

Which among the following machines can inspect geometric features of different components?

A. Co-ordinate measuring machines
B. Universal measuring machines
C. Both a. and b.
D. None of the above
Answer» C. Both a. and b.
Discussion
52.

Which among the following is used to measure velocity of an object?

A. Laser Doppler effect
B. Laser interferometers
C. Laser telemetric system
D. None of the above
Answer» B. Laser interferometers
Discussion
53.

Which among the following is used to create fringes in N.P.L. interferometer?

A. Condensing lens
B. Collimating lens
C. Optical flat
D. All of the above
Answer» D. All of the above
Discussion
54.

Which among the following is measured using four ball method?

A. Diameter
B. Length
C. Angle
D. All of the above
Answer» B. Length
Discussion
55.

Which among the following is an optical instrument?

A. angle dekkor
B. autocollimator
C. both a. and b.
D. none of the above
Answer» D. none of the above
Discussion
56.

Which among the following is a type of direct measuring instrument of roughness?

A. Micro interferometer
B. Wallace surface dynamometer
C. Profilometer
D. None of the above
Answer» D. None of the above
Discussion
57.

Which among the following is a type of control chart for variables?

A. C chart
B. P chart
C. X-bar chart
D. U chart
Answer» D. U chart
Discussion
58.

Which among the following is a type of clearance fit?

A. Force fit
B. Push fit
C. Slide fit
D. Tight fit
Answer» D. Tight fit
Discussion
59.

Which among the following is a pull type signaling system?

A. Just in time
B. Kanban
C. both a. and b.
D. none of the above
Answer» D. none of the above
Discussion
60.

Which among the following causes first order surface irregularity?

A. Lack of straightness
B. Lack of rigidity
C. Feed and speed
D. Vibrations
Answer» B. Lack of rigidity
Discussion
61.

What is/are the factor(s) causing runout?

A. Error of position
B. Error of bearings
C. Both a and b
D. None of the above
Answer» D. None of the above
Discussion
62.

What is used to measure the major diameter of an external thread?

A. Bench micrometer
B. Thread micrometer
C. One wire method
D. All of the above
Answer» B. Thread micrometer
Discussion
63.

What is the phase difference, when the system is operated at excitation frequency ?

A. Phase difference is greater than 90°
B. Phase difference is less than 90°
C. Phase difference is zero
D. Unpredictable
Answer» D. Unpredictable
Discussion
64.

What is the function of frame grabber?

A. It stores the obtained data
B. It converts digital words to analog voltage levels
C. It converts analog voltage levels to digital words
D. All of the above
Answer» D. All of the above
Discussion
65.

What is the effect of sample size on probability of acceptance?

A. sample size has no effect on probability of acceptance
B. as number of items in a sample decrease, higher is the possibility of number of defectives thereby probability of acceptance decreases
C. as number of items in a sample increase, higher is the possibility of number of defectives thereby probability of acceptance decreases
D. none of the above
Answer» D. none of the above
Discussion
66.

What is ten point height method?

A. It is the average sum of ten highest points measured within sampling length
B. It is the average difference of five highest points and five deepest valleys measured within sampling length
C. It is the sum of ten highest points divided by sum of ten deepest valleys measured within sampling length
D. It is the average sum of five highest points and five deepest valleys measured within sampling length
Answer» C. It is the sum of ten highest points divided by sum of ten deepest valleys measured within sampling length
Discussion
67.

What is meant by P, D, S and A in PDSA cycle?

A. Progress Development Study Act
B. Plan Do Study Act
C. Project Development Study Act
D. Prevention Do Study Act
Answer» C. Project Development Study Act
Discussion
68.

What is meant by hitch hiking?

A. procedure of secret voting to select the most appropriate idea
B. enlisting ideas in specific format considering similarities
C. ideas suggested based on other ideas
D. none of the above
Answer» D. none of the above
Discussion
69.

What is error of circularity?

A. Distance between maximum inscribing circle and minimum circumscribing circle measured radially
B. Distance between maximum inscribing circle and minimum zone circle measured radially
C. Distance between least square circle and minimum zone circle measured radially
D. None of the above
Answer» B. Distance between maximum inscribing circle and minimum zone circle measured radially
Discussion
70.

What is capability ratio?

A. The ratio of process capability and number of units inspected
B. The ratio of specification range and process capability
C. The ratio of number of defectives and process capability
D. The ratio of number of defectives and number of units inspected
Answer» C. The ratio of number of defectives and process capability
Discussion
71.

What is acceptance quality level?

A. Maximum percentage of defective parts for sampling purpose are considered satisfactory as a process average
B. Minimum percentage of defective parts for sampling purpose are considered satisfactory as a process average
C. Both A & B
D. None of these
Answer» B. Minimum percentage of defective parts for sampling purpose are considered satisfactory as a process average
Discussion
72.

What is a loose running fit?

A. Loose running fit has minimum clearance
B. They can be used in textile machinery
C. Used in high precision task
D. All the above
Answer» C. Used in high precision task
Discussion
73.

What is a least square line?

A. A line which has sum of errors minimum
B. A line which has sum of difference of errors minimum
C. A line which has sum of squares of errors minimum
D. None of the above
Answer» D. None of the above
Discussion
74.

What effect does pitch error have on nut and bolt?

A. Major diameter of nut decreases and effective diameter of bolt increases
B. Effective diameter of nut decreases and effective diameter of bolt increases
C. Effective diameter of nut increases and effective diameter of bolt decreases
D. None of the above
Answer» C. Effective diameter of nut increases and effective diameter of bolt decreases
Discussion
75.

What does N, P and L mean in N.P.L. Gauge interferometer?

A. Nikon pulsed laser
B. Nuclear plasma laboratory
C. National Physics Laboratory
D. Nuclear physics laboratory
Answer» D. Nuclear physics laboratory
Discussion
76.

What does effective profile mean, while defining a surface texture?

A. Workpiece having repetitive irregularities
B. Roughness can be measured in this imaginary profile
C. Real contour of a surface
D. All of the above
Answer» D. All of the above
Discussion
77.

What does allowance represent in clearance fits?

A. It represents minimum clearance and is positive
B. It represents maximum clearance and is positive
C. It represents minimum clearance and is negative
D. It represents maximum clearance and is negative
Answer» B. It represents maximum clearance and is positive
Discussion
78.

What are the factors causing sampling error?

A. method of sample selection
B. sample size
C. both a. and b.
D. none of the above
Answer» D. none of the above
Discussion
79.

Waterfall method is observed in

A. product design and development
B. quality circle
C. brain storming
D. flow chart
Answer» B. quality circle
Discussion
80.

Universal measuring machine is a combination of

A. Tool maker's microscope and Parkinson's gear tester
B. Tool maker's microscope and optical measuring machine
C. Parkinson's gear tester and optical measuring machine
D. None of the above
Answer» C. Parkinson's gear tester and optical measuring machine
Discussion
81.

The study of scientific metrology deals with

A. accuracy and methods of measurement
B. standard specifications
C. theories related to nature
D. all of the above
Answer» D. all of the above
Discussion
82.

The snap gauge having go dimension corresponds to

A. maximum metal condition
B. minimum metal condition
C. minimum material condition
D. none of the above
Answer» B. minimum metal condition
Discussion
83.

The Pitter - N.P.L. Gauge interferometer is used to measure

A. flatness
B. length
C. straightness
D. all of the above
Answer» C. straightness
Discussion
84.

The distribution of measured data can be studied by using

A. X-bar chart
B. R chart
C. both X-bar and R chart
D. None of the above
Answer» D. None of the above
Discussion
85.

Relaxed ambiance for group participation is observed in which type of brain storming sessions?

A. structured sessions
B. unstructured sessions
C. both a. and b.
D. none of the above
Answer» C. both a. and b.
Discussion
86.

Quality improvement planning is related to which category of cost?

A. Cost of failure
B. Cost of appraisal
C. Cost of prevention
D. All of the above
Answer» D. All of the above
Discussion
87.

Overall magnification of optical comparators is given as

A. (4 d / f) x ( magnification of eye piece)
B. (2 f / d) x ( magnification of eye piece)
C. (4 f / d) x ( magnification of eye piece)
D. (2 d / f) x ( magnification of eye piece)
Answer» C. (4 f / d) x ( magnification of eye piece)
Discussion
88.

On operating characteristics curve, consumers risk is denoted by

A. α
B. β
C. γ
D. None of the above
Answer» C. γ
Discussion
89.

Newall system is a type of

A. bilateral hole based system
B. limit system
C. both a. and b.
D. none of the above
Answer» D. none of the above
Discussion
90.

Maximum data handling analysis load is observed in

A. single sampling plan
B. double sampling plan
C. sequential sampling plan
D. all of the above
Answer» D. all of the above
Discussion
91.

Lot Tolerance Percent Defective is also known as?

A. rejectable quality level
B. acceptance quality level
C. indifferent quality level
D. all of the above
Answer» B. acceptance quality level
Discussion
92.

Johansson mickrocator is a type of

A. mechanical optical comparator
B. mechanical comparator
C. optical comparator
D. electrical comparator
Answer» C. optical comparator
Discussion
93.

Internal diameter of any workpiece can be measured using

A. Solex pneumatic comparator
B. Sigma comparator
C. Johansson mickrocator
D. All of the above
Answer» B. Sigma comparator
Discussion
94.

Indicator method is used to test

A. straightness
B. squareness
C. flatness
D. all of the above
Answer» C. flatness
Discussion
95.

Inadvertent errors are caused due to

A. improper timely feedback
B. less knowledge about the product
C. less information
D. all of the above
Answer» E.
Discussion
96.

In which of the following length standards, parallax error is observed?

A. line standard
B. end standard
C. both a. and b.
D. none of the above
Answer» B. end standard
Discussion
97.

In image shearing techniques, what is meant by single shear?

A. In single shear technique, two images have edge to edge contact and later on one image is shifted some distance over the other
B. In single shear technique, one image is shifted some distance till an edge to edge contact is established
C. Both A & B
D. None of these
Answer» B. In single shear technique, one image is shifted some distance till an edge to edge contact is established
Discussion
98.

In hole basis system, basic size is equal to

A. maximum hole size
B. minimum hole size
C. upper deviation which is zero
D. none of the above
Answer» C. upper deviation which is zero
Discussion
99.

In a lot size of 10000, probability of acceptance is 0.483 for 0.4% defectives. The number of defectives are not replaced, assume np' = 1.36. Calculate % average outgoing quality

A. 1.123
B. 0.1932
C. 0.789
D. None of the above
Answer» C. 0.789
Discussion
100.

Imperial standard yard is made of

A. platinum alloy
B. platinum iridium alloy
C. bronze
D. all of the above
Answer» D. all of the above
Discussion