MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Power Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Trash racks are located _____________ |
| A. | near tailrace |
| B. | at the entrance of turbine |
| C. | inside penstock |
| D. | intake |
| Answer» E. | |
| 2. |
WHAT_IS_THE_FUNCTION_OF_BOOMS??$ |
| A. | It supports the dam |
| B. | It supports the penstock |
| C. | It divert the Icebergs from flowing into the penstock |
| D. | To hold the turbine structure |
| Answer» B. It supports the penstock | |
| 3. |
Trash racks are located ____________? |
| A. | near tailrace |
| B. | at the entrance of turbine |
| C. | inside penstock |
| D. | intake |
| Answer» E. | |
| 4. |
Which statement about surge tank is wrong? |
| A. | Ideal location of surge tank is at the turbine inlet |
| B. | A decrease in load demands cause a rise in water level in surge tank |
| C. | Surge tanks are totally closed to avoid entry of unwanted objects to penstock |
| D. | Surge tanks are installed to reduce harm effects of water hammer phenomenon |
| Answer» D. Surge tanks are installed to reduce harm effects of water hammer phenomenon | |
| 5. |
Draft tube increases the operating head on the turbine. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The pressure at the inlet or exit of the draft tube should not be _________ |
| A. | less than one third of atmospheric pressure |
| B. | greater than one third of atmospheric pressure |
| C. | less than one atmospheric pressure |
| D. | greater than one atmospheric pressure |
| Answer» B. greater than one third of atmospheric pressure | |
| 7. |
Penstock in a hydroelectric power plant is _____________ |
| A. | a pipe connected to runner outlet |
| B. | nozzle that release high pressure water on turbine blades |
| C. | a conduit connecting forebay to scroll case of turbine |
| D. | a pipe connecting surge tank to dam |
| Answer» D. a pipe connecting surge tank to dam | |
| 8. |
Trash racks are built for ___________ |
| A. | discharging the water freely from the turbine exit to tailrace |
| B. | preventing the turbine from ingress of floating and other materials |
| C. | creating artificial head to store sufficient potential energy of water |
| D. | controlling the opening of valves |
| Answer» C. creating artificial head to store sufficient potential energy of water | |
| 9. |
Spillway discharges the overflow water to the downstream side when the reservoir is full. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Dam having very wide base as compared to its height is called _________ |
| A. | buttress dam |
| B. | arch dam |
| C. | earth dam |
| D. | solid gravity dam |
| Answer» D. solid gravity dam | |
| 11. |
Which element of hydroelectric power plant prevents the penstock from water hammer phenomenon? |
| A. | Valves and Gates |
| B. | Draft tubes |
| C. | Spillway |
| D. | Surge Tank |
| Answer» E. | |