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Exam Review

Key Facts: RRB Health & Malaria Inspector Exam

100 MCQs

CBT question count

RRB CEN 04/2024 Paramedical Categories

90 minutes

Exam duration

RRB CEN 04/2024 Paramedical Categories

1/3 negative

Marking scheme deduction

RRB CEN 04/2024 Paramedical Categories

70% weight

Professional Ability section

RRB CEN 04/2024 Paramedical Categories

INR 500 / 250

UR-OBC / SC-ST-Female fees

RRB CEN 04/2024 Paramedical Categories

RRB Health & Malaria Inspector is a 90-minute CBT with 100 MCQs testing public health, epidemiology, sanitary engineering, vector control, and general aptitude with 1/3 negative marking.

Sample RRB Health & Malaria Inspector Practice Questions

Try these sample questions to review concepts for the RRB Health & Malaria Inspector exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Bitot's spots on the conjunctiva are a characteristic clinical sign of which nutrient deficiency?
A.Vitamin A
B.Vitamin C
C.Vitamin D
D.Vitamin B12
Explanation: Bitot's spots are dry, triangular, pearly-white foamy deposits on the bulbar conjunctiva that are pathognomonic of Vitamin A deficiency. Left untreated, Vitamin A deficiency can progress to keratomalacia and permanent blindness.
2According to the Gomez classification of protein-energy malnutrition (PEM) in children, what percentage of weight-for-age is classified as severe (Grade III) malnutrition?
A.Between 90% and 110%
B.Between 75% and 89%
C.Between 60% and 74%
D.Less than 60%
Explanation: The Gomez classification grading is based on weight-for-age percentage of the reference standard: Grade I (mild) is 75-89%, Grade II (moderate) is 60-74%, and Grade III (severe) is less than 60%. It is a widely used system in public health to assess child growth and malnutrition severity.
3What are the daily nutritional norms for calories and protein provided to primary school children (Classes I to V) under the Mid-Day Meal Scheme (PM POSHAN) in India?
A.300 kcal and 8g protein
B.450 kcal and 12g protein
C.700 kcal and 20g protein
D.900 kcal and 25g protein
Explanation: Under the PM POSHAN (Mid-Day Meal) guidelines, children in primary classes (I to V) are provided with a lunch that meets the nutritional norm of 450 calories and 12 grams of protein per day. This ensures basic nutritional support during school hours to improve attendance and combat malnutrition.
4Which of the following statements regarding Vitamin C (ascorbic acid) is correct?
A.It is highly stable to heat and oxidation during cooking.
B.It is a fat-soluble vitamin stored extensively in the liver.
C.It is essential for collagen synthesis and non-heme iron absorption.
D.Deficiency leads to osteomalacia and poor bone mineralization.
Explanation: Vitamin C (ascorbic acid) acts as a reducing agent in the hydroxylation of proline and lysine residues, which is essential for collagen triple helix stabilization. It also enhances the absorption of dietary non-heme iron by reducing ferric iron (Fe3+) to the more absorbable ferrous state (Fe2+).
5In the pasteurization of milk, the High-Temperature Short-Time (HTST) method requires heating the milk to which temperature and duration?
A.63°C for 30 minutes
B.72°C for 15 seconds
C.85°C for 5 seconds
D.100°C for 2 seconds
Explanation: The High-Temperature Short-Time (HTST) pasteurization method requires heating milk to 72°C and holding it there for at least 15 seconds, followed by immediate cooling to below 10°C. This process destroys vegetative pathogens, including Mycobacterium bovis and Coxiella burnetii, without significantly altering the milk's nutritional quality.
6What is the biologically active form of Vitamin D synthesized in the kidneys?
A.Cholecalciferol
B.Ergocalciferol
C.25-hydroxyvitamin D
D.1,25-dihydroxyvitamin D
Explanation: Vitamin D is synthesized in the skin or ingested, then hydroxylated in the liver to form 25-hydroxyvitamin D (calcidiol). The final activation step occurs in the kidneys, where 1-alpha-hydroxylase converts it into the biologically active hormone 1,25-dihydroxyvitamin D (calcitriol).
7Calculate the total energy value (in kcal) of a food ration containing 60 grams of protein, 45 grams of fat, and 300 grams of carbohydrates.
A.1440 kcal
B.1845 kcal
C.2045 kcal
D.2250 kcal
Explanation: The total energy is calculated using Atwater values: Protein and Carbohydrates yield 4 kcal/gram each, and Fat yields 9 kcal/gram. Energy = (60g protein * 4 kcal/g) + (300g carbohydrate * 4 kcal/g) + (45g fat * 9 kcal/g) = 240 + 1200 + 405 = 1845 kcal.
8Under the PM POSHAN (Mid-Day Meal) guidelines, how much food grain (in grams) is allotted per child per day for upper primary school children (Classes VI to VIII)?
A.100 grams
B.150 grams
C.200 grams
D.250 grams
Explanation: According to the PM POSHAN (Mid-Day Meal Scheme) guidelines, the daily food grain allocation per child is 100 grams for primary school children and 150 grams for upper primary school children. The grains consist of wheat or rice depending on the regional food habit.
9The Methylene Blue Reduction Test (MBRT) is widely used in dairy hygiene to assess:
A.The concentration of added chemical preservatives in milk
B.The somatic cell count indicating mastitis
C.The microbiological quality and bacterial load of raw milk
D.The fat and solid-not-fat (SNF) percentages in milk
Explanation: The Methylene Blue Reduction Test (MBRT) is a standard method used to estimate the bacterial population in raw milk. Active bacteria consume oxygen, creating a reducing environment that turns methylene blue colorless; a shorter reduction time indicates poorer milk quality.
10Neurolathyrism, a neurological disease causing spastic paraplegia, is caused by the consumption of Kesari dal (Lathyrus sativus) containing which neurotoxin?
A.Beta-oxalyl-amino-alanine (BOAA)
B.Sanguinarine
C.Aflatoxin B1
D.Muscarine
Explanation: Neurolathyrism is caused by chronic consumption of Kesari dal (Lathyrus sativus), which contains the neurotoxin BOAA (also known as ODAP). BOAA is an agonist of AMPA receptors, and prolonged exposure leads to the death of upper motor neurons in the spinal cord, resulting in spastic paraplegia.

About the RRB Health & Malaria Inspector Exam

RRB Health & Malaria Inspector Recruitment Exam is a computer-based test conducted for recruiting Health & Malaria Inspectors in Indian Railways. The exam consists of 100 questions testing public health, sanitation, epidemiology, nutrition, arithmetic, and general reasoning.

Exam sponsor: Railway Recruitment Board (RRB). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Single-stage CBT. 70 professional questions and 30 general questions (General Awareness, Arithmetic/Reasoning, General Science). Negative marking of 1/3 per wrong answer.

Time Limit

90 minutes

Passing Score

Minimum qualifying marks: UR/EWS 40%, OBC/SC 30%, ST 25%

Exam / Certification Fees

INR 500 (General/OBC/EWS); INR 250 (SC/ST/PwBD/Female/Minorities)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

~20%

Food & Nutrition

Food hygiene, nutritional requirements, mid-day meal scheme, vitamins, minerals, food-borne diseases

~25%

Environmental Sanitation and Sanitary Engineering

Water purification, chlorination calculations, waste management, sewage treatment, solid waste disposal, ventilation, and housing sanitation

~25%

Communicable and Non-Communicable Diseases

Vector-borne diseases, mosquito life cycle, insecticide dosages, TB, cholera, typhoid, and disease prevention methods

~15%

Health and Death Statistics

Maternal mortality rate (MMR), infant mortality rate (IMR), birth/death rate calculations, and vital statistics registration

~15%

Public Health and Epidemiology

Levels of prevention, immunity, National Immunization Schedule, epidemic investigations, and disinfection protocols

Preparing for the RRB Health & Malaria Inspector Exam

What You Need to Know

  • Passing score: Minimum qualifying marks: UR/EWS 40%, OBC/SC 30%, ST 25%
  • Assessment: Single-stage CBT. 70 professional questions and 30 general questions (General Awareness, Arithmetic/Reasoning, General Science). Negative marking of 1/3 per wrong answer.
  • Time limit: 90 minutes
  • Exam / certification fees: INR 500 (General/OBC/EWS); INR 250 (SC/ST/PwBD/Female/Minorities) Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

RRB Health & Malaria Inspector: Suggested Study Strategy

1Focus heavily on environmental sanitation, especially formulas for calculating bleach/chlorine dosage in wells and water bodies.
2Understand the life cycle of mosquitoes, identification of vector species (Anopheles, Aedes, Culex), and standard insecticide spraying dosages (DDT, Malathion).
3Revise public health statistics formulas: MMR, IMR, Crude Birth Rate, and Crude Death Rate, and be ready to solve calculation problems.

Frequently Asked Questions

What is the exam structure for RRB Health & Malaria Inspector?

The exam consists of 100 questions in 90 minutes. 70 questions are from the professional syllabus (food hygiene, sanitation, vector control, statistics, epidemiology), and 30 are from general areas (science, math, reasoning, awareness). There is a 1/3 negative marking.

What are the minimum qualifying marks?

Candidates must score at least 40% (UR/EWS), 30% (OBC/SC), or 25% (ST) to qualify, though final merit depends on competitive cutoffs.