MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Powder Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
________ works on the principle that each constituent of the sintering atmosphere absorbs infrared energy at a characteristic wavelength. |
| A. | Infrared analyzer |
| B. | Orsat type analyzer |
| C. | Energy analyzer |
| D. | Wave analyzer |
| Answer» B. Orsat type analyzer | |
| 2. |
In _______, the analysis takes place in two phases, the absorption phase, and the burning phase. |
| A. | Ortab type analyzer |
| B. | Orsat type analyzer |
| C. | Infrared type analyzer |
| D. | Orson type analyzer |
| Answer» C. Infrared type analyzer | |
| 3. |
By measuring _________ of effluent gas from the furnace continuously, the completeness of purge can be identified. |
| A. | Dew point |
| B. | Specific gravity |
| C. | Carbon potential |
| D. | Gas content |
| Answer» C. Carbon potential | |
| 4. |
________ type furnaces require large volumes of protective gases. |
| A. | Ram-up |
| B. | Roller hearth |
| C. | Mesh-belt |
| D. | Pulley-lift |
| Answer» D. Pulley-lift | |
| 5. |
The cooling zone of a sintering furnace is made up of _______ |
| A. | A short-insulated cooling zone |
| B. | A short conductive cooling zone and longer oil jacketed cooling zone |
| C. | A longer water-jacketed cooling zone |
| D. | A short-insulated cooling zone and longer water-jacketed cooling zone |
| Answer» E. | |
| 6. |
The sintering zone must be ________ in length in relation to the burn-off zone. |
| A. | Shorter |
| B. | Longer |
| C. | Moderate |
| D. | Equal |
| Answer» C. Moderate | |
| 7. |
Incomplete burnout leads to ________ and discoloration of the components. |
| A. | Pungent smell |
| B. | Reduction |
| C. | Cracking |
| D. | Sooting |
| Answer» E. | |
| 8. |
The compacts entering into the burn-off zone must be heated ________ |
| A. | Slowly |
| B. | Moderately |
| C. | Rapidly |
| D. | Any desired rate |
| Answer» B. Moderately | |
| 9. |
Which of the following are the essential parts of a sintering furnace? |
| A. | Burn-on zone, sintering zone, and cooling zone |
| B. | Burn-off zone, sintering zone, and cooling zone |
| C. | Preheat zone and sintering zone |
| D. | Sintering zone and cooling zone |
| Answer» C. Preheat zone and sintering zone | |
| 10. |
On the basis of which of the following factors a sintering furnace is selected? |
| A. | Cost |
| B. | Furnace lining |
| C. | Working temperature range |
| D. | Shape |
| Answer» D. Shape | |
| 11. |
Which of the following condition is necessary for obtaining consistent and satisfactory sintered components? |
| A. | More labor cost |
| B. | Long sintering time |
| C. | High power consumption |
| D. | Short sintering time |
| Answer» E. | |