Winners of the previous Quiz
14/11/2025
Haasini.V
Class 4
Prudence international school
Tasib khan
Class 4
Tahir public school
Deepthi Priya R
Class 8
DDPS
Rohan gowda M.R
Class 8
Mother Teresa international school 🏫
Sai Rahul
Class 8
Vidya Jyothi school
Aishani Bhat
Class 4
KSVK International School
Harshith
Class 8
PREETHI PUBLIC SCHOOL
Hema G S
Class 8
Sri Vasavi Vidya samsthe sira
YASHAS GOWDA TM
Class 8
The jain international school Bangarpet
Kushal. R
Class 8
Karnataka Public School
Note: Quiz prizes will be awarded to ten randomly selected students who submit correct answers before the deadline. Winners will be declared on the website and the weekly newsletter.
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Previous Week Quizzes
Innovation Base Quiz
November 14, 2025
Question 1 :
A fully indoor vertical farm grows lettuce (Floors 1–2), herbs (Floor 3), and strawberries (Floors 4–5) using LED grow lights and HVAC cooling.
The farm must reduce its Peak Hour Energy (10 AM – 6 PM) by a minimum of 4.0 kW. This must be achieved without causing any crop to suffer more than 5% yield loss.
Current Peak Energy Use (10 AM – 6 PM)
|
Crop |
LED Lights (kW) |
Cooling (HVAC) (kW) |
Other Systems (kW) |
Total (kW) |
|
Lettuce |
15 |
6 |
2 |
23 |
|
Herbs |
8 |
3 |
1 |
12 |
|
Strawberries |
20 |
8 |
3 |
31 |
|
TOTAL |
43 |
17 |
6 |
66 |
Crop Requirements & Risk
|
Crop |
Light Duration Required |
Yield Loss if Light ↓ 20% |
|
Lettuce |
16 hours/day |
8% |
|
Herbs |
18 hours/day |
5% |
|
Strawberries |
20 hours/day |
12% |
Note: 1. Any Cooling (HVAC) power cut >2 kW is unsafe and causes crop yield failure.
2. LED dimming or turning lights off reduces energy in proportion to the dimming or off-time applied and yield loss is proportional to the light reduction.
Optimisation Plans
|
Plan |
LED Change |
Cooling (HVAC) Change |
|
A |
Turn lettuce and herbs OFF for 30 minutes each |
Reduce cooling by 3 kW |
|
B |
Dim all lights by 10 % |
None |
|
C |
Turn strawberries OFF for 2 hours |
Reduce cooling by 1 kW |
|
D |
Dim all lights by 7 % |
Reduce cooling by 2 kW |
Question
Which optimisation plan:
-
Achieves at least 4.0 kW peak energy reduction
-
Keeps yield loss for each crop ≤5%
-
Didn't cross the maximum HVAC safe limit
Question 2 :
A fully indoor vertical farm grows lettuce, herbs and strawberries using LED lights and climate control. Summer has increased electricity costs due to higher cooling demands. The farm must reduce peak-hour energy (10 AM – 6 PM) consumption by a minimum 15% without losing more than 5% crop yield.
Current Peak Energy Use (10 AM – 6 PM)
|
Crop |
LED Lights (kW) |
Cooling (HVAC) (kW) |
Other Systems (kW) |
Total (kW) |
|
Lettuce (Floors 1–2) |
15 |
6 |
2 |
23 |
|
Herbs (Floor 3) |
8 |
3 |
1 |
12 |
|
Strawberries (Floors 4–5) |
20 |
8 |
3 |
31 |
|
TOTAL |
43 |
17 |
6 |
66 |
Crop Requirements
|
Crop |
Light Duration Required |
Optimal Temperature Range |
Yield Loss if Light is Reduced by 20% |
Yield Loss if Temperature Exceeds Range by 2°C |
|
Lettuce |
16 hours/day |
18–22°C |
8% |
12% |
|
Herbs |
18 hours/day |
20–24°C |
5% |
8% |
|
Strawberries |
20 hours/day |
22–26°C |
12% |
15% |
Note:
LED dimming or turning lights off reduces energy in proportion to the dimming or off-time applied and yield loss is proportional to the light reduction.
Thermal Rule: Every 10% HVAC power cut leads to a 1°C temperature increase.
Question:
Which strategy best achieves the energy reduction target while keeping all crops within safe yield limits?
Innovation Base Quiz
November 07, 2025
Question 1 :
Sam, a young science enthusiast, is helping his mother with her small-scale home business of making small, fruit gum candies using a glass jar. He wishes to remove the air trapped inside the tin to improve the product’s quality.
For this experiment, Sam has a Venturi tube, some silicone rubber tubing, a leaf blower, and suitable sealing materials such as epoxy and putty to make the setup airtight.
He recalls Bernoulli’s Principle, which states that when air moves faster, its pressure becomes lower,The Venturi effect is a specific application of Bernoulli's principle —pressure falls when fluid speeds up through a narrowed tube.
He plans to design and construct a simple vacuum-generating device using these components.
Among the following design options:
which one would best meet his requirement of efficiently removing the air from the tin and demonstrate the expected outcome of the experiment?
Question 2 :
Sam, a young science enthusiast, is helping his mother with her small-scale home business of making small, fruit gum candies using a glass jar. He wishes to remove the air trapped inside the tin to improve the product’s quality.
For this experiment, Sam has a Venturi tube, some silicone rubber tubing, a leaf blower, One Way Non-Return Check Valve for air pump, and suitable sealing materials such as epoxy and putty to make the setup airtight.
He recalls Bernoulli’s Principle, which states that when air moves faster, its pressure becomes lower, The Venturi effect is a specific application of Bernoulli's principle —pressure falls when fluid speeds up through a narrowed tube.
He plans to design and construct a simple vacuum-generating device using these components.
Among the following design options:
which one would best meet his requirement of efficiently removing the air from the tin?
