MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The maximum pour-point requirements for refrigerator system are about ________ for lightest grade. |
| A. | -10oF |
| B. | -20oF |
| C. | -30oF |
| D. | -40oF |
| Answer» E. | |
| 2. |
For refrigerator system, the oils with the low viscosity, high cloud point and low pour point are used. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Transformer oils must have _________ |
| A. | More oiliness |
| B. | More viscosity |
| C. | Good dielectric strength |
| D. | Low dielectric strength |
| Answer» D. Low dielectric strength | |
| 4. |
Flame exposure device is connected with __________ |
| A. | Flange |
| B. | Shutter |
| C. | Pilot burner |
| D. | Oil cup |
| Answer» C. Pilot burner | |
| 5. |
The location of the cup in air bath can be known using __________ |
| A. | Flange |
| B. | Leaver |
| C. | Shutter |
| D. | Pilot burner |
| Answer» B. Leaver | |
| 6. |
Oil cup in Pensky-marten’s apparatus is made with __________ |
| A. | Brass |
| B. | Iron |
| C. | Copper |
| D. | Steel |
| Answer» B. Iron | |
| 7. |
Pensky-Marten’s apparatus is used to find out the ________ |
| A. | Cloud point |
| B. | Pour point |
| C. | Flash point |
| D. | Fire point |
| Answer» D. Fire point | |
| 8. |
The lubricating oil is volatilises then the formed vapour __________ |
| A. | Must be less |
| B. | Must be high |
| C. | Non-inflammable |
| D. | Flammable |
| Answer» D. Flammable | |
| 9. |
The fire point of an oil is about ________ higher than the flash point. |
| A. | 5-10oC |
| B. | 5-20oC |
| C. | 5-30oC |
| D. | 5-40oC |
| Answer» E. | |
| 10. |
The fire point is the lowest temperature at which the vapour of oil burns continuously for at least ________ when a small flame is brought near to it. |
| A. | 1 Second |
| B. | 2 Seconds |
| C. | 4 Seconds |
| D. | 5 Seconds |
| Answer» E. | |
| 11. |
The lowest temperature at which the oils gives enough vapour. |
| A. | Pour point |
| B. | Cloud point |
| C. | Flash point |
| D. | Fire point |
| Answer» D. Fire point | |