Teechaa Worker

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

2994AI questions in bank

200awaiting review

JSS1 / Basic Technologynext batch (1 of 83 class/subject pairs in your bank)

2026-09-30 16:38:00 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

2557approved and live

83held 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 83.

#39104 · JSS1 Agricultural ScienceWhat type of plant is tomato classified as?

A) Herbaceous
B) Woody
C) Perennial
D) Annual

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

#39085 · SS3 PhysicsWhat is the focal length of a convex lens if the image distance is 20 cm and the object distance is 30 cm?

A) 6 cm
B) 10 cm
C) 15 cm
D) 20 cm

Stored answer B · checker said X · The question lacks sufficient information to calculate the focal length.

#39077 · SS3 PhysicsWhat is the de Broglie wavelength of an electron with a momentum of 4 × 10⁻² kg·m/s?

A) 0.5 nm
B) 1.6 nm
C) 2.0 nm
D) 3.0 nm

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

#39068 · SS3 PhysicsWhat is the equivalent resistance of three 6Ω resistors in series?

A) 2Ω
B) 6Ω
C) 12Ω
D) 18Ω

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

#39061 · SS3 PhysicsWhich particle in an atom has a mass approximately 1 amu?

A) Electron
B) Neutron
C) Proton
D) Positron

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

#39056 · SS3 MathematicsWhat is the standard deviation of the set {2, 4, 4, 4, 5, 5, 7, 9}?

A) 2.0
B) 1.5
C) 1.0
D) 0.5

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

#39052 · SS3 MathematicsWhat are the solutions to 2x + 3y = 6 and 4x - y = 5?

A) (2, 0)
B) (1, 1)
C) (0, 2)
D) (3, -1)

Stored answer B · checker said X · The equations do not have a unique solution; they are inconsistent.

#39049 · SS3 MathematicsFind the roots of the quadratic equation x² + 3x + 2 = 0.

A) -2, -1
B) 1, 2
C) 0, 2
D) -1, -2

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

#39038 · SS3 MathematicsCalculate 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.

#38995 · SS3 MarketingWhat term describes the network of organizations involved in moving products from producers to consumers?

A) Supply Chain
B) Market Segmentation
C) Distribution Channel
D) Retail Network

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

#38989 · SS3 GovernmentWhat was a major political development in Nigeria during the 1970s?

A) Return to military rule.
B) Establishment of a one-party state.
C) Civilian government reinstated.
D) End of the civil war.

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

#38929 · SS3 Further MathematicsWhat is the z-score for a value of 10 in a normal distribution with mean 5 and standard deviation 2?

A) 2.5
B) 1.5
C) 3
D) 5

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

#38923 · SS3 Further MathematicsWhat is the acceleration of an object that changes its velocity from 10 m/s to 20 m/s in 5 seconds?

A) 2 m/s²
B) 5 m/s²
C) 10 m/s²
D) 4 m/s²

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

#38868 · SS3 English LanguageWhat is the main idea of the passage?

A) The importance of education.
B) The benefits of exercise.
C) The history of Nigeria.
D) The role of technology.

Stored answer A · checker said X · The question refers to a passage that is not provided.

#38859 · SS3 EconomicsWhich theory focuses on the relationship between population and economic development?

A) Malthusian theory
B) Demographic transition theory
C) Population control theory
D) Socialist theory

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

#38801 · SS3 CommerceWhat is an example of a non-tariff barrier?

A) Import tax
B) Quotas
C) Export tax
D) Customs duty

Stored answer B · checker said X · More than one option is correct; quotas can also be considered non-tariff barriers.

#38731 · SS3 ChemistryWhat is the general formula for alkynes?

A) CₙH₂ₙ₊₂
B) CₙH₂ₙ₋₂
C) CₙH₂ₙ₋₁
D) CₙH₂ₙ

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

#38605 · SS2 MathematicsIf you invest ₦5000 at 5% interest per annum for 2 years, how much interest do you earn?

A) ₦500
B) ₦250
C) ₦100
D) ₦200

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

#38600 · SS2 MathematicsIf a tower is 30 m high and is 40 m away, what is the angle of elevation?

A) 36.87°
B) 45°
C) 53.13°
D) 60°

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

#38595 · SS2 MathematicsWhat is the circumference of a circle with radius 7 cm?

A) 14π cm
B) 7π cm
C) 21π cm
D) 28π cm

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

#38578 · SS2 MarketingWhich marketing strategy is most effective for agricultural products?

A) Mass marketing
B) Niche marketing
C) Direct marketing
D) Online marketing

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

#38541 · SS2 GovernmentWhich constitutional amendment established local government in Nigeria?

A) 1st Amendment
B) 4th Amendment
C) 6th Amendment
D) 8th Amendment

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

#38507 · SS2 GeographyWhat is the average annual rainfall in Nigeria’s rainforest zone?

A) 500 mm
B) 1500 mm
C) 2500 mm
D) 3000 mm

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

#38475 · SS2 Further MathematicsSolve for θ in 2cosθ = 1.

A) θ = 60°
B) θ = 30°
C) θ = 90°
D) θ = 120°

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

#38474 · SS2 Further MathematicsWhat is the area between y = x and y = x² from x = 0 to x = 1?

A) ⅙
B) ⅓
C) 1
D) ⅔

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

#38472 · SS2 Further MathematicsWhat is the sum of the first 5 terms of the series 1, 4, 7, ...?

A) 35
B) 30
C) 25
D) 40

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

#38471 · SS2 Further MathematicsWhat is the area of a circle with diameter 10 cm?

A) 25π cm²
B) 50π cm²
C) 100π cm²
D) 75π cm²

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

#38465 · SS2 Further MathematicsIf s(t) = t² + 3t, find v(t) = ds/dt at t = 2.

A) 7
B) 8
C) 9
D) 10

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

#38460 · SS2 Further MathematicsWhat is the area under the curve y = x² from x = 1 to x = 3?

A) 8/3
B) 10
C) 6
D) 4

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

#38457 · SS2 Further MathematicsEvaluate ∫(2x + 3) dx.

A) x² + 3x + C
B) 2x² + 3x + C
C) x² + 3x
D) 2x² + 3x

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

Diagrams on new questions

**#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
2026-09-30 16:38:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:37:33 UTC	timer	success	JSS1 / Basic Science	29	29 approved and live, 0 held for review. 1 duplicate(s) of existing questions skipped.
2026-09-30 16:33:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:27:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:22:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:16:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:11:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:07:33 UTC	timer	success	JSS1 / Agricultural Science	26	25 approved and live, 1 held for review. 2 duplicate(s) of existing questions skipped.
2026-09-30 16:06:34 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 16:01:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:56:34 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:51:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:46:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:41:34 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:37:33 UTC	timer	success	SS3 / Physics	30	26 approved and live, 4 held for review.
2026-09-30 15:36:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:31:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:26:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:21:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:16:34 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:11:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:07:33 UTC	timer	success	SS3 / Mathematics	39	35 approved and live, 4 held for review.
2026-09-30 15:06:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 15:01:33 UTC	backfill	skipped			No old questions left that need a diagram.
2026-09-30 14:56:33 UTC	backfill	skipped			No old questions left that need a diagram.