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Background AI question generation and question diagrams. A second AI answers every new question on its own; when it agrees with the stored answer the question goes live, otherwise it waits here for you.

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Every 30 min, 50 questions per batch
Question diagrams
Up to 6 per batch, drawn by gpt-4o-mini, answer-checked by gpt-4o-mini, served from https://questions.teechaa.com/question_images

New questions

15214AI questions in bank

629awaiting review

SS3 / Civic Educationnext batch (1 of 83 class/subject pairs in your bank)

2026-10-12 05:20:08 UTClast successful batch

AI questions for subjects a class doesn't take: from before generation was limited to the subjects in your question bank. They also make those subjects appear in the app's subject pickers for that class.

JSS1 Physics (30 draft) · JSS1 Chemistry (30 draft)

Going live

14346approved and live

512held for you to decide

0older drafts still to check (60 per run)

0deleted by you

Held questions: the checker didn't reach the stored answer, or found a problem. Green = stored answer, underlined = checker's pick. Approve if the stored answer is right, otherwise delete. Showing the latest 30 of 512.

#54737 · SS3 ChemistryWhat is the main source of sulfur dioxide in the atmosphere?

A) Volcanic eruptions
B) Industrial processes
C) Automobile emissions
D) Natural gas combustion

Stored answer B · checker said A · Checker chose A, stored answer is B.

#54621 · SS2 PhysicsWhat is the electric field strength at a distance of 1 m from a 5 C charge?

A) 5 N/C
B) 10 N/C
C) 20 N/C
D) 25 N/C

Stored answer C · checker said X · The question lacks the necessary formula or context to calculate the electric field strength.

#54596 · SS2 MathematicsWhat is the mean of the numbers: 10, 20, 30, 40?

A) 25
B) 30
C) 20
D) 10

Stored answer A · checker said B · Checker chose B, stored answer is A.

#54593 · SS2 MathematicsWhat is the exterior angle of a regular pentagon?

A) 72°
B) 60°
C) 90°
D) 108°

Stored answer A · checker said D · Checker chose D, stored answer is A.

#54590 · SS2 MathematicsFind the surface area of a sphere with radius 4 cm.

A) 16π cm²
B) 32π cm²
C) 64π cm²
D) 48π cm²

Stored answer B · checker said C · Checker chose C, stored answer is B.

#54585 · SS2 MathematicsIf a tree is 10 m tall and casts a shadow of 5 m, what is the angle of elevation?

A) 63.4°
B) 45°
C) 30°
D) 60°

Stored answer A · checker said X · The question is ambiguous without a diagram to determine the angle of elevation.

#54578 · SS2 MathematicsWhat is the circumference of a circle with radius 4 cm?

A) 8π cm
B) 16π cm
C) 12π cm
D) 6π cm

Stored answer A · checker said B · Checker chose B, stored answer is A.

#54577 · SS2 MathematicsFind the surface area of a cube with side length 3 cm.

A) 27 cm²
B) 18 cm²
C) 9 cm²
D) 36 cm²

Stored answer A · checker said B · Checker chose B, stored answer is A.

#54557 · SS2 MarketingWhich marketing channel is commonly used for agricultural products?

A) Online marketplaces
B) Direct sales to consumers
C) Retail stores
D) Wholesalers

Stored answer D · checker said B · Checker chose B, stored answer is D.

#54542 · SS2 MarketingWhat is a disadvantage of using a direct distribution channel?

A) Higher costs
B) Less control over the product
C) Limited reach
D) Increased competition

Stored answer C · checker said A · Checker chose A, stored answer is C.

#54462 · SS2 Further MathematicsWhat is the minimum value of f(x) = x² - 4x + 6?

A) 2
B) 0
C) 4
D) 6

Stored answer A · checker said C · Checker chose C, stored answer is A.

#54454 · SS2 Further MathematicsWhat is the locus of points equidistant from (0,0) and (0,4)?

A) x = 2
B) y = 2
C) x² + y² = 4
D) x² + (y - 2)² = 2

Stored answer B · checker said X · The locus of points equidistant from two points is a line, not represented by the options.

#54447 · SS2 Further MathematicsWhat is the area under the curve y = x³ from x = 1 to x = 2?

A) 3.5
B) 4.5
C) 5.5
D) 6.5

Stored answer A · checker said X · The area under the curve requires integration, which is not provided.

#54312 · SS2 CommerceWhat is the primary purpose of financial forecasting?

A) To predict future sales
B) To assess existing performance
C) To evaluate market trends
D) To determine capital needs

Stored answer D · checker said A · Checker chose A, stored answer is D.

#54263 · SS2 ChemistryWhat is the limiting reactant in a reaction?

A) The reactant that is in excess
B) The reactant that is completely consumed
C) The product formed in the least amount
D) The reactant that determines the yield

Stored answer D · checker said B · Checker chose B, stored answer is D.

#54262 · SS2 ChemistryHow many moles are in 32 g of O₂?

A) 1 mole
B) 2 moles
C) 0.5 moles
D) 4 moles

Stored answer A · checker said B · Checker chose B, stored answer is A.

#54252 · SS2 ChemistryWhat is the main product of cracking hydrocarbons?

A) Gasoline
B) Kerosene
C) LPG
D) Ethylene

Stored answer D · checker said A · Checker chose A, stored answer is D.

#54227 · SS2 BiologyWhat is a key feature of the phosphorus cycle?

A) Gas exchange
B) Soil absorption
C) Water evaporation
D) Photosynthesis

Stored answer B · checker said X · The question is ambiguous as it does not specify the context of the phosphorus cycle.

#54190 · SS2 Agricultural ScienceWhat is the ideal temperature for broiler chickens?

A) 18°C
B) 24°C
C) 32°C
D) 38°C

Stored answer B · checker said C · Checker chose C, stored answer is B.

#54184 · SS2 Agricultural ScienceWhat is essential for effective weed control?

A) Regular mowing
B) Fertilization
C) Crop rotation
D) Pesticide application

Stored answer A · checker said X · Effective weed control can depend on multiple strategies, not just one.

#54181 · SS2 Agricultural ScienceWhich method is most effective for establishing crops?

A) Broadcasting
B) Transplanting
C) Direct seeding
D) All of the above

Stored answer D · checker said X · The effectiveness of crop establishment methods can depend on various factors.

#54176 · SS2 Agricultural ScienceWhich practice helps in controlling soil erosion?

A) Crop rotation
B) Overgrazing
C) Monocropping
D) Burning residues

Stored answer A · checker said X · The question is ambiguous as it does not specify the context of soil erosion control.

#54124 · SS1 PhysicsIf a pulley system has a mechanical advantage of 3, how much effort is needed to lift a 300 N load?

A) 100 N
B) 150 N
C) 200 N
D) 300 N

Stored answer A · checker said B · Checker chose B, stored answer is A.

#54111 · SS1 PhysicsIf an object weighs 30 N, what is its mass? (Use g = 9.8 m/s²)

A) 3 kg
B) 4 kg
C) 6 kg
D) 8 kg

Stored answer C · checker said B · Checker chose B, stored answer is C.

#54097 · SS1 MathematicsIf z varies jointly with x and y, and z = 10 when x = 2 and y = 5, find z when x = 4 and y = 10.

A) 20
B) 25
C) 30
D) 40

Stored answer A · checker said D · Checker chose D, stored answer is A.

#54094 · SS1 MathematicsWhat is the range of the data set 5, 10, 15, 20?

A) 10
B) 15
C) 20
D) 25

Stored answer A · checker said D · Checker chose D, stored answer is A.

#54078 · SS1 MathematicsEstimate the value of 19.7 + 5.3.

A) 25
B) 24
C) 20
D) 30

Stored answer A · checker said B · Checker chose B, stored answer is A.

#54075 · SS1 MathematicsWhat is (x² - 1)/(x + 1) when x = 2?

A) 1
B) 2
C) 3
D) 4

Stored answer A · checker said D · Checker chose D, stored answer is A.

#54072 · SS1 MathematicsWhat is the value of x in the equation 2x + 4 = 12?

A) x = 2
B) x = 4
C) x = 6
D) x = 8

Stored answer B · checker said A · Checker chose A, stored answer is B.

#54051 · SS1 MarketingHow are wants different from needs?

A) Wants are essential; needs are not
B) Wants are influenced by culture; needs are not
C) Wants are unlimited; needs are limited
D) Wants are basic; needs are luxury

Stored answer B · checker said C · Checker chose C, stored answer is B.

Diagrams on new questions

**#54142 · SS1 Technical Drawing**Construct an angle of 135° using a compass and straightedge. What is the first step?

**#53086 · JSS2 Mathematics**If a point is 5 cm from point A, what shape does the locus form?

**#50846 · JSS3 Mathematics**What is the locus of points equidistant from two points A and B?

**#50464 · JSS2 Mathematics**What is the locus of points equidistant from point A and point B?

**#50463 · JSS2 Mathematics**In a line graph, if the points (1,2) and (2,4) are connected, what is the slope?

**#50462 · JSS2 Mathematics**If a bar graph shows 5 apples and 3 oranges, how many fruits are there in total?

**#49706 · SS3 Physics**What is the principle behind a transformer?

**#49705 · SS3 Physics**What happens to light when it passes through a prism?

**#49113 · SS2 Further Mathematics**The locus of points equidistant from A(2, 3) and B(4, 5) is?

**#40189 · JSS3 Mathematics**How do you construct a locus of points equidistant from a point?

**#37785 · SS1 Computer Science**What does a diamond shape represent in a flowchart?

Diagrams for old questions

0diagrams added

0still to look at

56no diagram needed / can't be drawn

1failed (retried up to 3×)

Recent runs

Started	Trigger	Status	Class / subject	Qs	Details
2026-10-12 05:34:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 05:28:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 05:22:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 05:19:37 UTC	timer	success	SS3 / Chemistry	25	24 approved and live, 1 held for review. 8 duplicate(s) of existing questions skipped.
2026-10-12 05:17:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 05:11:37 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-12 04:51:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 04:49:37 UTC	timer	success	SS3 / Biology	25	25 approved and live, 0 held for review. 5 duplicate(s) of existing questions skipped.
2026-10-12 04:45:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 04:40:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 04:35:37 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-12 04:19:37 UTC	timer	success	SS3 / Agricultural Science	44	44 approved and live, 0 held for review. 10 duplicate(s) of existing questions skipped.
2026-10-12 04:14:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 04:09:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 04:04:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 03:58:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 03:53:37 UTC	backfill	skipped			No old questions left that need a diagram.
2026-10-12 03:49:37 UTC	timer	success	SS2 / Physics	18	17 approved and live, 1 held for review. 12 duplicate(s) of existing questions skipped.
2026-10-12 03:48:37 UTC	backfill	skipped			No old questions left that need a diagram.