100+ Free CWC Junior Technical Assistant Practice Questions

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Key Facts: CWC Junior Technical Assistant Exam

200 MCQs

Official online-test question count (200 marks)

CWC Official Advertisement

2 hr 30 min

Total duration with separately timed sections

CWC Exam Pattern

0.25 penalty

Negative marking for each wrong answer (1/4th)

CWC Advertisement — Penalty for Wrong Answers

No interview

JTA selection is Online Test + Document Verification only

CWC Selection Process

₹1,350 / ₹500

Total fee UR-EWS-OBC vs SC-ST-PwBD-ExSM-Women

CWC Application Fee Table

60% PK floor

Minimum score required in Professional Knowledge

CWC Cut-off / Qualifying Score rules

CWC JTA: 200 MCQs in 2.5 hours, separately timed sections, 0.25 negative marking. Selection = Online Test + Document Verification (no interview). Fees ₹1,350 (UR/EWS/OBC) or ₹500 (SC/ST/PwBD/Ex-SM/Women). Eligibility: Agriculture degree or degree with Zoology/Chemistry/Bio-Chemistry.

Sample CWC Junior Technical Assistant Practice Questions

Try these sample questions to test your CWC Junior Technical Assistant exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1For long-term bagged storage of wheat in Indian warehouses, the commonly recommended safe moisture content is approximately:

A.18–20%

B.Less than 14%

C.22%

D.25%

Explanation: In Indian godown practice (FCI/CWC-type bagged storage), wheat is generally stored at a safe moisture level of about less than 14% to suppress insect and mold activity. Higher moisture sharply raises spoilage risk.

2Which fumigant formulation is the primary large-scale curative treatment used for food-grain stacks in Indian warehouses?

A.Aluminium phosphide (phosphine)

B.DDT dust

C.Bordeaux mixture

D.Glyphosate

Explanation: Aluminium phosphide releases phosphine gas and is the main fumigant used for stack/godown fumigation of stored food grains in India. It requires airtight covering for efficacy.

3A warehouse treats a 20-tonne wheat stack with aluminium phosphide at a common label rate of 3 tablets of 3 g each per tonne. How many 3 g tablets are required?

A.20 tablets

B.9 tablets

C.180 tablets

D.60 tablets

Explanation: Dose = 3 tablets/tonne × 20 tonnes = 60 tablets. Each tablet is 3 g ALP, so total ALP mass = 180 g, but the question asks for tablet count.

4Which stored-product beetle is especially associated with hot, dry, unhygienic storage conditions in North India and is a quarantine-important pest of cereals?

A.Honey bee (Apis mellifera)

B.Ladybird beetle

C.Khapra beetle (Trogoderma granarium)

D.Silkworm (Bombyx mori)

Explanation: The Khapra beetle (Trogoderma granarium) thrives in hot, dry, poor-hygiene storages and is a major quarantine pest of stored cereals, notably in North Indian conditions.

5Sitophilus oryzae, a major primary pest of stored cereals, is commonly known as the:

A.Red flour beetle

B.Rice weevil

C.Lesser grain borer

D.Angoumois grain moth

Explanation: Sitophilus oryzae is the rice weevil, a primary internal feeder of whole grains such as rice, wheat, and maize in storage.

6Rhyzopertha dominica, an important primary pest boring into whole grains, is known as the:

A.Lesser grain borer

B.Rice weevil

C.Khapra beetle

D.Pulse beetle

Explanation: Rhyzopertha dominica is the lesser grain borer, a strong flier and serious primary pest that bores into sound kernels.

7Tribolium castaneum (rust-red flour beetle) is best described as:

A.A beneficial parasitoid of aphids

B.A field pest of standing paddy only

C.A nematode parasite of roots

D.A secondary pest favoring broken grain, flour, and dockage

Explanation: Tribolium castaneum is a classic secondary storage pest that multiplies rapidly on flour, broken kernels, and poorly cleaned stocks.

8In scientific bagged godown layout, a commonly cited minimum gap between the wall and the grain stack is about:

A.0.1 m

B.5 m

C.0.8 m

D.10 m

Explanation: Standard warehouse layout practice leaves roughly 0.8 m between walls and stacks (and about 0.75 m between stacks, ~1.5 m from stack top to roof) for inspection, aeration, and treatment access.

9Under India’s Jute Packaging Materials (Compulsory Use in Packing Commodities) Act, 1987, food grains for storage/transport are generally required to be packed in:

A.Only plastic FIBCs with no exception rules

B.Jute bags

C.Glass bottles

D.Aluminium cans

Explanation: JMMA/related jute packaging mandates make jute bags the standard packaging for food-grain storage and transport in the organized Indian warehousing system.

10Prophylactic spray schedules in Indian food-grain warehouses commonly include malathion 50 EC at about every 15 days and deltamethrin 2.5 WP about every:

A.Three months

B.Every hour

C.Once in 10 years

D.Never; only herbicides are used

Explanation: Typical prophylactic protocols cited for FCI/CWC-type storages use malathion sprays about every 15 days and deltamethrin 2.5 WP about every three months, alongside hygiene and fumigation as needed.

About the CWC Junior Technical Assistant Exam

The CWC Junior Technical Assistant Online Test recruits technical staff for Central Warehousing Corporation godowns and related operations. The computer-based exam has 200 objective questions across five separately timed sections totaling 2 hours 30 minutes, with 0.25 negative marking. Unlike Management Trainee and Superintendent posts, JTA selection is Online Test + Document Verification only—there is no interview. Professional Knowledge draws from agriculture, botany, zoology (storage pests/insecticides), chemistry, and physics, with practical weight on grain storage quality and warehouse pest/fungus control.

Assessment

Separately timed online sections: Professional Knowledge (65Q/65M/55 min), Reasoning & Computer Aptitude (40Q/40M/25 min), DI & Quantitative Aptitude (40Q/40M/30 min), General Awareness (20Q/20M/15 min), English Language (35Q/35M/25 min). 1/4 mark penalty for wrong answers.

Time Limit

2 hours 30 minutes

Passing Score

Merit-based with sectional minima; Professional Knowledge must score at least 60% to qualify for shortlisting.

Exam Fee

UR/EWS/OBC: ₹850 application + ₹500 intimation = ₹1,350; SC/ST/PwBD/Ex-Servicemen/Women: NIL application + ₹500 intimation = ₹500. (Central Warehousing Corporation (CWC))

CWC Junior Technical Assistant Exam Content Outline

32.5%

Professional Knowledge

Agriculture, botany, zoology (storage insects/rodents/insecticides), chemistry, physics, and warehouse grain-protection practice.

20%

Reasoning and Computer Aptitude

Logical puzzles, analytical reasoning, and computer fundamentals.

20%

DI & Quantitative Aptitude

Arithmetic calculations and data interpretation sets.

10%

General Awareness

Current affairs, economy, agriculture/food policy, and static GK.

17.5%

English Language

Grammar, vocabulary, comprehension, and verbal ability.

How to Pass the CWC Junior Technical Assistant Exam

What You Need to Know

Passing score: Merit-based with sectional minima; Professional Knowledge must score at least 60% to qualify for shortlisting.
Assessment: Separately timed online sections: Professional Knowledge (65Q/65M/55 min), Reasoning & Computer Aptitude (40Q/40M/25 min), DI & Quantitative Aptitude (40Q/40M/30 min), General Awareness (20Q/20M/15 min), English Language (35Q/35M/25 min). 1/4 mark penalty for wrong answers.
Time limit: 2 hours 30 minutes
Exam fee: UR/EWS/OBC: ₹850 application + ₹500 intimation = ₹1,350; SC/ST/PwBD/Ex-Servicemen/Women: NIL application + ₹500 intimation = ₹500.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CWC Junior Technical Assistant Study Tips from Top Performers

1Treat Professional Knowledge as the make-or-break section: you need at least 60% there, and it has 65 marks with 55 minutes.

2Focus warehouse science facts: safe moisture for wheat/rice/paddy, aluminium phosphide fumigation, stack hygiene, and major storage pests (rice weevil, lesser grain borer, Khapra beetle, Tribolium).

3Practice under separately timed sections so you do not overspend minutes meant for DI/Quant or English.

4Because of 0.25 negative marking, skip low-confidence guesses unless you can eliminate at least two options.

5Revise basic chemistry (bonding, organic/inorganic/biochemistry) and physics measurement/thermodynamics items that appear in the indicative JTA syllabus.

6Keep original degree marksheets and category certificates ready early; JTA final appointment hinges on document verification after the online test.

Frequently Asked Questions

Is there an interview for CWC Junior Technical Assistant?

No. For Junior Technical Assistant, selection is Online Test + Document Verification only. Interview applies to other posts such as Management Trainee, Accountant, and Superintendent (General), not JTA.

What is the CWC JTA exam pattern?

200 questions for 200 marks in 2 hours 30 minutes with separately timed sections: Professional Knowledge 65, Reasoning & Computer Aptitude 40, DI & Quantitative Aptitude 40, General Awareness 20, and English Language 35.

How much negative marking applies?

One-fourth (0.25) of the marks assigned to a question is deducted for each wrong answer. Unattempted questions carry no penalty.

What is the application fee?

UR/EWS/OBC candidates pay ₹850 application fee plus ₹500 intimation charges (₹1,350 total). SC/ST/PwBD/Ex-Servicemen and Women candidates pay NIL application fee plus ₹500 intimation charges (₹500 total).

What educational qualification is required for JTA?

A Degree in Agriculture, or a degree with Zoology, Chemistry, or Bio-Chemistry as one of the subjects from a recognized University/Institution.

Is there a minimum score in Professional Knowledge?

Yes. Candidates must obtain at least 60% in the Professional Knowledge section, plus the prescribed sectional and overall minima, to be considered for shortlisting.