MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Pulp Paper knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
N.P.S.H. ___________ as the square of the pump flow rate near and above the design flow rate of a pump. |
| A. | Increase |
| B. | Decrease |
| C. | Seize |
| D. | Variate |
| Answer» B. Decrease | |
| 2. |
N.P.S.H.A. is the net positive suction head available and must be _________ than N.P.S.H.R. the net positive suction head required. |
| A. | Less |
| B. | Greater |
| C. | Equal |
| D. | Variate |
| Answer» B. Greater | |
| 3. |
N.P.S.H. the net positive suction head, is calc. by the absolute suction head _________ the vapor pressure of the liquid being pumped. |
| A. | Plus |
| B. | Minus |
| C. | Divide |
| D. | Multiply |
| Answer» C. Divide | |
| 4. |
N.P.S.H.A._IS_THE_NET_POSITIVE_SUCTION_HEAD_AVAILABLE_AND_MUST_BE___________THAN_N.P.S.H.R._THE_NET_POSITIVE_SUCTION_HEAD_REQUIRED.?$ |
| A. | Less |
| B. | Greater |
| C. | Equal |
| D. | Variate |
| Answer» B. Greater | |
| 5. |
N.P.S.H._____________as_the_square_of_the_pump_flow_rate_near_and_above_the_design_flow_rate_of_a_pump.$ |
| A. | Increase |
| B. | Decrease |
| C. | Seize |
| D. | Variate |
| Answer» B. Decrease | |
| 6. |
N.P.S.H. the net positive suction head, is calc. by the absolute suction head _________ the vapor pressure of the liquid being pumped? |
| A. | Plus |
| B. | Minus |
| C. | Divide |
| D. | Multiply |
| Answer» C. Divide | |
| 7. |
If the flow rate is pulsating with a period less than a few seconds, the utilisation of a _________ system could level the flow rate at the inlet. |
| A. | Cavitation |
| B. | Bulkiness |
| C. | Magnetisation |
| D. | Dampening |
| Answer» E. | |
| 8. |
Inlet pipes and filters with larger inside diameters would _________ the frictional and velocity pressure drops. |
| A. | Increase |
| B. | Decrease |
| C. | Seize |
| D. | Variate |
| Answer» C. Seize | |
| 9. |
Cavitation could be alleviated by having a generous geodetic height for the liquid entering the pump; this is accomplished by _________ the pump or raising the reservoir. |
| A. | Elevating |
| B. | Lowering |
| C. | Displacing |
| D. | Removing |
| Answer» C. Displacing | |
| 10. |
_________ is aggravated by utilizing liquids at high temperatures where their vapor pressure is high, by utilizing filters with high pressure drops. |
| A. | Cavitation |
| B. | Bulkiness |
| C. | Magnetisation |
| D. | Dampening |
| Answer» B. Bulkiness | |
| 11. |
The utilize of an adequate _________ would avoid cavitation . Much difficulty and premature wear encountered in the utilize of pumps are the result of an inadequate _________ |
| A. | NPSH |
| B. | Partial pressure |
| C. | Vapour pressure |
| D. | Saturation point |
| Answer» B. Partial pressure | |
| 12. |
Centrifugal pumps are the most common type of dynamic pump and the most common type of pump utilized in pulp and paper mills. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Dynamic pumps usually rely on centrifugal force. |
| A. | True |
| B. | False |
| Answer» B. False | |