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Ultrasound is also useful for __________ i. detecting fault in metal sheets ii. imaging marine depths iii. looking for metals beneath the earth’s surface iv. detecting distances v. detecting earthquakes
Signal processing for FHR determination can be based either on detecting the foetal heart valve motion or on detecting the heart wall motion in Abdominal foetal electrocardiogram technique.
Which of the following holds true for gamma-ray radiography as compared to x-ray radiography?
Which of the following techniques are not applicable for detecting internal flows in a ceramic material?
1. Liquid penetration test
2. Radiography
3. Ultrasonic testing
4. Eddy current method
Consider the following statements regarding crystal defects: 1. In metals, a self-interstitial introduces relatively large distortions in the surrounding lattice because the atom is substantially larger than the interstitial position in which it is situated. 2. All crystalline solids do not contain vacancies and, it is possible to create such a material that is free of these defects. 3. Impurity point defects are found in solid solutions, of which there are two types: Substitutional and interstitial.  Which of the above statements is/are correct?
Which of the following are major principles of leading?
1. Principle of motivation
2. Principle of continuous development
3. Principle of harmony of objectives
4. Principle of open competition
5. Principle of communication clarity
Select the correct answer:
Surface defects are discovered by radiography.
Planar defects can’t be detected by radiography.
Which of the following is based on the discovery method of learning? I. Principle of activity II. Principle of logical thinking III. Principle of purposeful experiences IV. Principle of discovering for alternatives
Optical fibre is based on which of the following principles? a. Principle of reflection of light b. Principle of refraction of light c. Principle of total internal reflection d. Principle of dispersion of light