IBC Quiz #170
Winners of the previous Quiz
12/09/2025
PRERITHA P
Class 4
GR International Public School
Vega
Class 9
Royal English medium school
Amritha
Class 7
Malgudi Vidya Niketan School
Amai krishna
Class 9
Vidya jyothi school kolar
Abhishta Bhat
Class 9
KSVK International School
Vaibhav Choudri
Class 7
SISHUGRIHA MONT & SENIOR SCHOOL
Ranitha. M
Class 5
Sri sharada English School Sidlaghatta
Rohan gowda M.R
Class 9
Mother Teresa international school 🏫
Ayesha Zoya
Class 8
Tahir public school
Rohan Prasad
Class 7
NPS Kengeri
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.
September 12, 2025
Q1.
As depth increases in the ocean, pressure rises substantially due to the weight of water above.
- For every 33 feet (10.06 metres) you descend, the pressure increases by one atmosphere.
- Pressure Calculation Formula: Pressure (atm) = 1 + (Depth in metres ÷ 10.06)
Scenario:
The International Deep Ocean Research Consortium is conducting a multi-depth study of marine ecosystems, ranging from shallow reefs to the deepest ocean trenches. Each research station has been assigned specific equipment based on availability and logistics, resulting in a complex equipment-to-depth matching challenge.
As depth increases in the ocean, pressure rises substantially due to the weight of water above.
- For every 33 feet (10.06 metres) you descend, the pressure increases by one atmosphere.
- Pressure Calculation Formula: Pressure (atm) = 1 + (Depth in metres ÷ 10.06)
The International Deep Ocean Research Consortium is conducting a multi-depth study of marine ecosystems, ranging from shallow reefs to the deepest ocean trenches. Each research station has been assigned specific equipment based on availability and logistics, resulting in a complex equipment-to-depth matching challenge.
Research Station Details:
|
Station |
Target Depth (m) |
Research Focus |
Assigned Equipment |
Equipment Rating (Max Pressure in atm) |
|
A |
90 |
Coral Reef Assessment |
Commercial Diving System |
~ 10 |
|
B |
2,650 |
Hydrothermal Vent Study |
Heavy Work Class ROV |
~ 299 |
|
C |
6,660 |
Abyssal Sediment Analysis |
Research Submersible Alvin |
~ 647 |
|
D |
9,790 |
Challenger Deep Survey |
Fendouzhe Submersible |
~ 1000 |
Mission Requirements :
-
Marine Biology Sampling: Equipment must operate within its pressure rating.
-
Deep Sea Photography: Equipment must have a minimum safety buffer of 20 atm above the required pressure.
Mission Requirements :
-
Marine Biology Sampling: Equipment must operate within its pressure rating.
-
Deep Sea Photography: Equipment must have a minimum safety buffer of 20 atm above the required pressure.
Question
At each station, determine whether the assigned equipment can safely:
-
Conduct marine biology sampling.
-
Perform deep-sea photography.
Question
At each station, determine whether the assigned equipment can safely:
-
Conduct marine biology sampling.
-
Perform deep-sea photography.
Q2.
As depth increases in the ocean, pressure rises substantially due to the weight of water above.
-
For every 33 feet (10.06 metres) you descend, the pressure increases by one atmosphere (atm).
-
Pressure Calculation Formula: Pressure (atm) = 1 + (Depth in meters ÷ 10.06)
Scenario:
The International Deep Ocean Research Consortium is carrying out a multi-depth study of marine ecosystems, ranging from shallow reefs to the deepest ocean trenches. Each research station has been allocated specific equipment based on availability and logistics, creating a complex equipment-to-depth matching challenge.
As depth increases in the ocean, pressure rises substantially due to the weight of water above.
-
For every 33 feet (10.06 metres) you descend, the pressure increases by one atmosphere (atm).
-
Pressure Calculation Formula: Pressure (atm) = 1 + (Depth in meters ÷ 10.06)
Scenario:
The International Deep Ocean Research Consortium is carrying out a multi-depth study of marine ecosystems, ranging from shallow reefs to the deepest ocean trenches. Each research station has been allocated specific equipment based on availability and logistics, creating a complex equipment-to-depth matching challenge.
Research Station Details :
|
Station |
Target Depth (m) |
Research Focus |
Assigned Equipment |
Equipment Rating (Max Pressure in atm) |
|
A |
90 |
Coral Reef Ecosystem |
Commercial Diving system |
~ 10 |
|
B |
2,650 |
Hydrothermal Vents |
Heavy Work Class Remotely Operated Vehicle |
~ 299 |
|
C |
6,660 |
Abyssal Trench Species |
Research Submersible Alvin |
~ 647 |
Mission Requirements :
-
Marine Biology Sampling: Equipment must operate within its pressure rating.
-
Deep Sea Photography: Equipment must have a minimum safety buffer of 20 atm above the required pressure.
Mission Requirements :
-
Marine Biology Sampling: Equipment must operate within its pressure rating.
-
Deep Sea Photography: Equipment must have a minimum safety buffer of 20 atm above the required pressure.
Question:
At which stations can the assigned equipment meet both mission requirements?
Question:
At which stations can the assigned equipment meet both mission requirements?
September 05, 2025
Q1.
As altitude increases, the air pressure decreases, so water does not need to reach the same high temperature as at sea level to start boiling. In other words, the higher you go, the lower the boiling point of water becomes.
Scenario
An army medical team is stationed at three mountain bases. They must decide where to set up a field kitchen and a small medical camp.
Below are the altitudes of the three army bases, measured above sea level:
-
At sea level: 100 °C
-
At 1300 m: 97 °C
-
At 3500 m: 91 °C
-
At 5300 m: 82 °C
As altitude increases, the air pressure decreases, so water does not need to reach the same high temperature as at sea level to start boiling. In other words, the higher you go, the lower the boiling point of water becomes.
Scenario
An army medical team is stationed at three mountain bases. They must decide where to set up a field kitchen and a small medical camp.
Below are the altitudes of the three army bases, measured above sea level:
-
At sea level: 100 °C
-
At 1300 m: 97 °C
-
At 3500 m: 91 °C
-
At 5300 m: 82 °C
An army unit is stationed at different bases:
|
Base |
Altitude |
Boiling Point of Water |
Current Water Temperature |
|
A |
1300 m |
97 °C |
95 °C |
|
B |
3500 m |
91 °C |
90 °C |
|
C |
5300 m |
82 °C |
82 °C |
Requirements
-
Making safe warm herbal teas 78 °C - 80°C
-
Cooking Eggs ≥84°C
-
Instant noodles: requires ≥ 90 °C
-
Boiling potatoes ≥ 95 °C
-
Sterilise medical tools - Sterilising medical tools cannot be done by simple boiling at these altitudes. Instead, the temperature should be maintained at ≥95 °C for 15 to 20 minutes to achieve sterilisation to raise steam temperature to 121 °C under pressure
Note:
-
If water is within 2 °C below the requirement, the task is considered borderline possible, but:
-
Making safe warm herbal tea takes long to prepare
-
Cooking Eggs takes longer
-
Boiling potatoes takes long to cook.
-
Sterilisation is never safe below 95 °C (no borderline allowed).
-
Safety Score System
-
Making safe warm herbal tea (Normal) = 2 points
-
Making safe warm herbal tea (Borderline) = 1 point
-
Cooking Eggs (Normal) = 2 points
-
Cooking Eggs (Borderline) = 1 points
-
Noodles (Normal) = 2 points
-
Noodles (Borderline) = 1 point
-
Boiling potatoes (Normal) = 3 points
-
Boiling potatoes (Borderline) = 2 points
-
Sterilisation = 5 (if ≥ 95 °C)
Requirements
-
Making safe warm herbal teas 78 °C - 80°C
-
Cooking Eggs ≥84°C
-
Instant noodles: requires ≥ 90 °C
-
Boiling potatoes ≥ 95 °C
-
Sterilise medical tools - Sterilising medical tools cannot be done by simple boiling at these altitudes. Instead, the temperature should be maintained at ≥95 °C for 15 to 20 minutes to achieve sterilisation to raise steam temperature to 121 °C under pressure
Note:
-
If water is within 2 °C below the requirement, the task is considered borderline possible, but:
-
Making safe warm herbal tea takes long to prepare
-
Cooking Eggs takes longer
-
Boiling potatoes takes long to cook.
-
Sterilisation is never safe below 95 °C (no borderline allowed).
-
Safety Score System
-
Making safe warm herbal tea (Normal) = 2 points
-
Making safe warm herbal tea (Borderline) = 1 point
-
Cooking Eggs (Normal) = 2 points
-
Cooking Eggs (Borderline) = 1 points
-
Noodles (Normal) = 2 points
-
Noodles (Borderline) = 1 point
-
Boiling potatoes (Normal) = 3 points
-
Boiling potatoes (Borderline) = 2 points
-
Sterilisation = 5 (if ≥ 95 °C)
Question:
Based on the given altitudes, boiling points, and task requirements, calculate the safety score for each base using the scoring system provided. Then determine which base (A, B, or C) is the most suitable location for setting up both the field kitchen and the medical camp.
Q2.
As altitude increases, the air pressure decreases, so water does not need to reach the same high temperature as at sea level to start boiling. In other words, the higher you go, the lower the boiling point of water becomes.
Scenario
An army medical team is stationed at three mountain bases. They must decide where to set up a field kitchen and a small medical camp.
Below are the altitudes of the three army bases, measured above sea level:
-
At sea level: 100 °C
-
At 1300 m: 97 °C
-
At 3500 m: 91 °C
-
At 5300 m: 82 °C
As altitude increases, the air pressure decreases, so water does not need to reach the same high temperature as at sea level to start boiling. In other words, the higher you go, the lower the boiling point of water becomes.
Scenario
An army medical team is stationed at three mountain bases. They must decide where to set up a field kitchen and a small medical camp.
Below are the altitudes of the three army bases, measured above sea level:
-
At sea level: 100 °C
-
At 1300 m: 97 °C
-
At 3500 m: 91 °C
-
At 5300 m: 82 °C
An army unit is stationed at different bases:
| Base | Altitude | Boiling Point of Water | Current Water Temperature |
|
A |
1300 m |
97 °C |
95 °C |
|
B |
3500 m |
91 °C |
90 °C |
|
C |
5300 m |
82 °C |
82 °C |
They need to:
-
Cook instant noodles (requires 90 °C).
-
Sterilise medical tools - Sterilising medical tools cannot be done by simple boiling at these altitudes. Instead, the temperature should be maintained at ≥95 °C for 15 to 20 minutes to achieve sterilisation to raise steam temperature to 121 °C under pressure.
They need to:
-
Cook instant noodles (requires 90 °C).
-
Sterilise medical tools - Sterilising medical tools cannot be done by simple boiling at these altitudes. Instead, the temperature should be maintained at ≥95 °C for 15 to 20 minutes to achieve sterilisation to raise steam temperature to 121 °C under pressure.
Question
At each base, check if water boiling at that altitude is enough for:
-
Cooking noodles.
-
Sterilisation.
At which bases is it possible to cook noodles, and at which bases is sterilisation possible?
Question
At each base, check if water boiling at that altitude is enough for:
-
Cooking noodles.
-
Sterilisation.
At which bases is it possible to cook noodles, and at which bases is sterilisation possible?
