MCQOPTIONS
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MCQOPTIONS
This section includes 91 Mcqs, each offering curated multiple-choice questions to sharpen your Energy Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
A draft tube is essentially required for impulse type turbines. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 52. |
What is the highest elevation of water level that can be maintained in the reservoir without any spillway discharge either with gated or non-gated spillway? |
| A. | Normal Water level |
| B. | Minimum Water level |
| C. | Weighted average level |
| D. | Operating head |
| Answer» B. Minimum Water level | |
| 53. |
Which of the following plant uses a reversible turbine that can work at relatively high efficiencies and helps in reducing the cost of such a plant? |
| A. | Run-off river plant |
| B. | Storage plant |
| C. | Pumped storage plant |
| D. | Tidal plant |
| Answer» D. Tidal plant | |
| 54. |
A hydropower plant developed at the site of a drop in an irrigation canal is of the type ________ |
| A. | runoff river plant |
| B. | storage plant |
| C. | pumped storage plant |
| D. | tidal plant |
| Answer» B. storage plant | |
| 55. |
A runoff river plant for hydropower generation is essentially a ________________________ |
| A. | high head scheme |
| B. | medium head scheme |
| C. | low head scheme |
| D. | any of the schemes |
| Answer» D. any of the schemes | |
| 56. |
A nuclear power development scheme is essentially a _____________________ |
| A. | thermal power scheme |
| B. | hydropower scheme |
| C. | both thermal and hydropower scheme |
| D. | atomic power scheme |
| Answer» B. hydropower scheme | |
| 57. |
A storage hydro plant essentially involves ________________ |
| A. | a barrage or a weir |
| B. | a dam |
| C. | either barrage or a dam |
| D. | check dams |
| Answer» C. either barrage or a dam | |
| 58. |
Fossil fuels are used in _____________________ |
| A. | a nuclear power plant |
| B. | an ordinary thermal power plant |
| C. | a hydropower plant |
| D. | atomic power plant |
| Answer» C. a hydropower plant | |
| 59. |
On what aspect is precipitation calculated? |
| A. | Based on hydrological aspect |
| B. | Based on climatic conditions |
| C. | Based on the vegetation of the area |
| D. | Based on weather forecast |
| Answer» B. Based on climatic conditions | |
| 60. |
Above which range should be the unit hydrographs be used? |
| A. | Around 5000 sq km |
| B. | Over 2500 sq km |
| C. | Around 4000 sq km |
| D. | Below 5000 sq km |
| Answer» B. Over 2500 sq km | |
| 61. |
Find out the total flow volume in day sec meter for the average daily stream flow for 7 days?Days Mean daily flow1234567 100300200120503020 |
| A. | 820 day sec meter |
| B. | 95 day sec meter |
| C. | 200 day sec meter |
| D. | 524 day sec meter |
| Answer» B. 95 day sec meter | |
| 62. |
What is the theoretical number of unit hydrographs for given basin? |
| A. | 500 |
| B. | 2900 |
| C. | 36000 |
| D. | infinite |
| Answer» E. | |
| 63. |
Determine the pondage factor if the plant is working at time of 8 hrs? |
| A. | 2.5 |
| B. | 3.8 |
| C. | 1 |
| D. | 3 |
| Answer» E. | |
| 64. |
Water gets polluted by submerged vegetation mineral? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 65. |
The graph of the cumulative values of water quantity against time is known as __________ |
| A. | Flow curve |
| B. | Power curve |
| C. | Mass curve |
| D. | Load curve |
| Answer» D. Load curve | |
| 66. |
Which type of gate valves are used in high head installations? |
| A. | Needle valves |
| B. | Butterfly valves |
| C. | Globe valve |
| D. | Pinch valve |
| Answer» B. Butterfly valves | |
| 67. |
What AEP stand for in hydrology? |
| A. | Annual exceedance probability |
| B. | Annual energy production |
| C. | Annual exceedance period |
| D. | Automatic engagement panel |
| Answer» B. Annual energy production | |
| 68. |
Study of shape and features of earth surface is called __________ |
| A. | Vegetation |
| B. | Geography |
| C. | Anatomy |
| D. | Topography |
| Answer» E. | |
| 69. |
How many types of rain gauges are there? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 70. |
In what way are all the precipitations measured? |
| A. | Vertical depth |
| B. | Horizontal area |
| C. | Width of area |
| D. | At slope |
| Answer» B. Horizontal area | |
| 71. |
Movement and filtering of fluid from porous material is called as __________ |
| A. | Percolation |
| B. | Infiltration |
| C. | Transpiration |
| D. | Precipitation |
| Answer» B. Infiltration | |
| 72. |
The unit hydrographs can be successfully applied to basin areas of what sq km? |
| A. | 15000 sq km |
| B. | 10000 sq km |
| C. | 3000 sq km |
| D. | 25000 sq km |
| Answer» E. | |
| 73. |
Where is the catchment area situated with respect to dam? |
| A. | Behind the dam |
| B. | Front of dam |
| C. | Right beneath the dam |
| D. | Opposite to the Dam Head |
| Answer» B. Front of dam | |
| 74. |
The intensity of rainfall is given by ______ |
| A. | I = R/(T+C) |
| B. | I = R/(T×C) |
| C. | I = (T×C)/R |
| D. | I = (T+R)/C |
| Answer» B. I = R/(T×C) | |
| 75. |
Cusec is___________ |
| A. | A unit of flow equal to one cubic feet per sec |
| B. | A unit of flow equal to one centimeter cube per sec |
| C. | A unit of flow equal to one meter per sec |
| D. | A unit of flow equal to one cubic foot per sec |
| Answer» B. A unit of flow equal to one centimeter cube per sec | |
| 76. |
Which type of penstocks is less expensive? |
| A. | Buried penstock |
| B. | Covered penstock |
| C. | Open penstock |
| D. | Exposed penstock |
| Answer» E. | |
| 77. |
Amount of rainfall which runs off the earth's land surface to form stream is used for ______ |
| A. | Flower generation |
| B. | Back water storage |
| C. | Pit Irrigation |
| D. | Left through canals |
| Answer» B. Back water storage | |
| 78. |
The surge tank controls the water when the load on the turbine is________ |
| A. | Equal |
| B. | Decreased |
| C. | Increased |
| D. | Not present |
| Answer» C. Increased | |
| 79. |
Where are funnel and receiver in Non-recording type placed? |
| A. | Inside a Metal case |
| B. | On top of the equipment |
| C. | Below the base of equipment |
| D. | In between the metal case |
| Answer» B. On top of the equipment | |
| 80. |
Which type of penstock is used in cold climates? |
| A. | Buried penstock |
| B. | Covered penstock |
| C. | Open penstock |
| D. | Exposed penstock |
| Answer» B. Covered penstock | |
| 81. |
A safety valve for a dam to discharge major floods is called? |
| A. | Spillway |
| B. | Penstock |
| C. | Fore bay |
| D. | Canal |
| Answer» B. Penstock | |
| 82. |
Which type of hydro plant is it if the head of a hydro plant is 30 - 100m? |
| A. | High head hydro-plant |
| B. | Medium head hydro-plant |
| C. | Low head hydro-plant |
| D. | Base load hydro-plant |
| Answer» C. Low head hydro-plant | |
| 83. |
The magnitude of runoff as ordinates against the corresponding percentage of time as abscissa gives ________ |
| A. | Mass duration curve |
| B. | Load duration curve |
| C. | Power duration curve |
| D. | Flow duration curve |
| Answer» E. | |
| 84. |
What is the unit of runoff ________ |
| A. | Day-sec meter |
| B. | M2/s |
| C. | MM/S2 |
| D. | Ns/m2 |
| Answer» B. M2/s | |
| 85. |
Vegetation affects the runoff _____ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 86. |
How many years of minimum rainfall is required to design hydroelectric projects? |
| A. | 10 |
| B. | 20 |
| C. | 25 |
| D. | 35 |
| Answer» E. | |
| 87. |
Iso-hyete method is commonly used for the basin area above 500sq.km? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 88. |
What is the volume of rainfall in day sec-meters if 6.5cm rainfall occurs over an area of 2400 sq.km? |
| A. | 1805.56 day sec meter |
| B. | 1225 day sec meter |
| C. | 895 day sec meter |
| D. | 1555.22 day sec meter |
| Answer» B. 1225 day sec meter | |
| 89. |
Presence of Corrosive gases like H2S and SO2 affect the voltage drop. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 90. |
Two successive Iso-hyetes in the basin drawing of catchment area are measured using _______ |
| A. | Planimeter |
| B. | Manometer |
| C. | Mass flow meter |
| D. | Chronometer |
| Answer» B. Manometer | |
| 91. |
Water containing H2S, CO2 and CH2 are less corrosive to dam structure? |
| A. | True |
| B. | False |
| Answer» C. | |