MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the correct expression of parameter Ea in Penman s equation? |
| A. | E<sub>a</sub> = 0.35 (1 + V<sub>2</sub>/160) (e<sub>s</sub> e<sub>a</sub>) |
| B. | E<sub>a</sub> = 0.35 (1 + V<sub>2</sub>/160) (e<sub>s</sub> + e<sub>a</sub>) |
| C. | E<sub>a</sub> = 0.35 (1 V<sub>2</sub>/160) (e<sub>s</sub> e<sub>a</sub>) |
| D. | E<sub>a</sub> = 0.35 (1 V<sub>2</sub>/160) (e<sub>s</sub> + e<sub>a</sub>) |
| Answer» B. E<sub>a</sub> = 0.35 (1 + V<sub>2</sub>/160) (e<sub>s</sub> + e<sub>a</sub>) | |
| 2. |
Compute the total consumptive use for a drainage basin by Penman s formula. The slope of saturation vapour pressure V/s chart at 40 C is 2.95 mm of Hg/ C and the net incoming solar radiation is 5.705 mm of evaporative water/day. Assume, Ea = 18.07 mm/day and Psychrometric constant = 0.49 mm of Hg/ C. |
| A. | 17.01 mm/day |
| B. | 18 mm/day |
| C. | 11.07 mm/day |
| D. | 20.45 mm/day |
| Answer» B. 18 mm/day | |
| 3. |
What is the consumptive use for a crop in the month of April having a consumptive use coefficient equal to 0.80 and pan evaporation is 35 cm? |
| A. | 28 cm |
| B. | 43.75 cm |
| C. | 35.80 cm |
| D. | 40.80 cm |
| Answer» B. 43.75 cm | |
| 4. |
The pan evaporation can also be determined by Christiansen formula. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Penman s equation can also be used to compute evaporation from a water surface like a lake if _________ |
| A. | reflection coefficient = 0.05 |
| B. | reflection coefficient > 0.05 |
| C. | reflection coefficient < 0.05 |
| D. | reflection coefficient = 0.45- 0.90 |
| Answer» B. reflection coefficient > 0.05 | |
| 6. |
Albedo or reflection coefficient factor is used in which method? |
| A. | Blaney- Criddle equation |
| B. | Christiansen equation |
| C. | Penman equation |
| D. | Tank and Lysimeter method |
| Answer» D. Tank and Lysimeter method | |
| 7. |
Penman s equation for the estimation of PET has been derived by using ___________ |
| A. | energy balance approach |
| B. | mass transfer approach |
| C. | combination of energy balance approach and mass transfer approach |
| D. | combination of energy balance approach and energy transfer approach |
| Answer» D. combination of energy balance approach and energy transfer approach | |
| 8. |
What are the dimensions of the standard class-A pan? |
| A. | Diameter-1.2 m, Depth 25 cm |
| B. | Diameter-2 m, Depth 25 cm |
| C. | Diameter-2 m, Depth 30 cm |
| D. | Diameter-1.2 m, Depth 30 cm |
| Answer» B. Diameter-2 m, Depth 25 cm | |
| 9. |
Which method involves the use of crop factor? |
| A. | Penman s equation |
| B. | Hargreaves method |
| C. | Blaney-Criddle Formula |
| D. | Tanks and Lysimeter |
| Answer» D. Tanks and Lysimeter | |