MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Concrete Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The interference field near the face of a transducer is often referred to as the ______________ |
| A. | Fresnel zone |
| B. | Acoustic impedance |
| C. | Exponential field |
| D. | Phasing zone |
| Answer» B. Acoustic impedance | |
| 2. |
A second name for compression wave is __________ |
| A. | Longitudinal wave |
| B. | Shear wave |
| C. | Surface wave |
| D. | Lamb wave |
| Answer» E. | |
| 3. |
When the motion of the particles of a medium are at right angles to the direction of wave motion, the wave being transmitted is called a ___________ |
| A. | Longitudinal wave |
| B. | Shear wave |
| C. | Surface wave |
| D. | Lamb wave |
| Answer» B. Shear wave | |
| 4. |
A discontinuity that occurs during the casting of molten metal which may be caused by the splashing, surging, interrupted pouring is ___________ |
| A. | Burst |
| B. | Cold shut |
| C. | Flaking |
| D. | Blow hole |
| Answer» C. Flaking | |