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Match the following terminologies in Group I with their descriptions in Group II
Group I Group II P. Pruning 1. Useful in reproducing plants that would not breed true if propagated by seed Q. Topiary 2. A live bud from a desired plant inserted into a host plant R. Grafting 3. Cutting of evergreen shrubs into abstract or geometric shapes S. Budding 4. Trimming and cutting of lawns 5. Selective cutting of plant branches for better growth
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- P - 5, Q - 3, R - 4, S - 2
- P - 2, Q - 3, R - 1, S - 5
- P - 3, Q - 4, R - 1, S - 2
- P - 5, Q - 3, R - 1, S - 2
Correct Option: D
45. (0.190 to .195)
5kW= 5kJ of heat energy is generated in 1 sec. Let the cross section area be A
So, V, the quantity of air passed in 1 sec.= 2A
Heat energy content in V amount of air
= (amount of air) × (specific heat(c)) × (Dt)
= (2A) × (1300) × (10) = 2600A
This heat energy must be compensated by 5kJ as heat gain.
So, 2600A = 5000 A = 0.19
