Font size
WorksheetsMATERIAL TESTING CHAPTER 8
Total questions: 25
Worksheet time: 14mins
Which of these is true?
A destructive test is to measure the resistance to failure of a material to a suddenly applied force such as collision, falling object, or instantaneous blow.
A destructive test is to detect flaw / defect on surface or sub surface
A destructive test is to Perform on to product before or during service
to locate surface-breaking defects in all non-porous materials (metals, plastics, or ceramics).
The most common methods of measuring impact energy are
Izod and Vickers test
Charpy and Vickers test
Izod and Charpy test
Vickers and Brinell test
The figure shown is the Impact test tool.
1-PENDULUM, 2-SCALE, 3- SCALE
1-SPECIMEN CLAMP, 2-SCALE, 3- PENDULUM
1-SPECIMEN CLAMP, 2-PENDULUM, 3- SCALE
Which of the following is not non-destructive testing methods?
Radiography inspection
Magnetic particle inspection
Ultrasonic Inspection
Bounding Inspection
Which of the following tool is used when performing a Radiography inspection test?
Endoscope
X-rays film
Boroscope
pendulum
Which of the following are true?
Dyes are used to detect cracks
Ultrasound is used to detect cracks
X-ray is used to detect surface finish defects
Ultrasound is used to detect surface finishes
The presence of a surface or near-surface flaw (void) in the material causes distortion in the magnetic flux through it, which in turn causes leakage of the magnetic fields at the flaw. What type of NDT mention above.
Radiography testing
Dye Penetrant testing
Magnetic particle testing
Ultrasonic testing
A common use of ultrasonic testing is:
Cleaning
Determination of the test piece ductility
Detecting of sub-surface indications
Communications
DPI is based upon ___________, where low surface tension fluid penetrates into clean and dry surface-breaking discontinuities.
capillary action
extraordinary action
substitutional action
interstitial action
Ultrasonic testing is:
Mechanical energy with a speed of propagation faster than the speed of sound
Sound which has a frequency or pitch above the range of the human ear
The science of discontinuity detection using ultrasonic sound
Mechanical vibrations below the frequency of human hearing
A disadvantage of using a high frequency ultrasonic transducer is:
It provides a smaller beam angle and better resolving power
It provides a larger beam angle and poorer resolving power
It is scattered more by coarse grained material
It is scattered less by coarse grained material
The most effective NDT method for locating surface cracks in ferromagnetic materials is:
Ultrasonic testing
Radiographic testing
Magnetic particle testing
Liquid penetrant testing
What are the advantages of non-destructive testing?
Non-destructive testing is expensive and not cost-effective.
Non-destructive testing is not accurate and often gives false results.
Non-destructive testing offers the ability to detect defects without damaging the tested object, cost-effectiveness, increased safety, and improved quality control.
Non-destructive testing is time-consuming and slows down the production process.
Name one non-destructive testing method used for inspecting welds.
Liquid penetrant testing (PT)
Ultrasonic testing (UT)
Magnetic particle testing (MT)
Radiographic testing (RT)
What are the disadvantages of destructive testing?
Destruction of the tested object, inability to retest the same object, and cost of replacement.
Inability to accurately measure the object's performance
Limited availability of destructive testing equipment
Potential safety hazards during the testing process
What are the limitations of Non-Destructive Testing?
Inability to detect internal defects, limited depth of inspection, reliance on skilled operators, high equipment costs
No need for skilled operators
Unlimited depth of inspection
Ability to detect internal defects
What is the purpose of material testing?
To test the hardness of a material
To measure the ductility of a material
To determine the strength of a material
To evaluate material properties
In Izod impact test, what is the position of the notch on the specimen
Bottom of the specimen
Tension side of the specimen
side of the specimen
Top of specimen
12. Brinell Hardness Number of a metal or an alloy is a measure of its ...
Tensile strength
Toughness
Malleability
Hardness
What is not an advantage of using NDT methods?
It can help you when making a new product
It can check the quality of material
It can improve the quality of your material
It helps in guaranteeing the quality of your product
Which technique cannot be used to detect defects below the surface?
Liquid Penetrant Testing
Magnetic Particle Testing
Ultrasonic Testing
Electromagnetic Testing
Which technique would be best and least expensive to detect defects slightly below the surface in iron?
Ultrasonic Testing
Liquid Penetrant Testing
Magnetic Particle Testing
Radiographic Testing
Which technique uses film to show images of components?
Electromagnetic Testing
Ultrasonic Testing
Magnetic Particle Testing
None of these
For which of the following is NDT not usually used?
Leak Detection
Dimensional Measurements
Estimation of Physical Properties
Crash Simulations
How would you best define NDT?
Inspect or Measure Without Doing Harm
The use of Non invasive Techniques to determine the integrity of a material component or structure
Inspecting and Checking without harming
Inspect without causing harm to material
