RPSC Veterinary Officer (Rajasthan) · India · Rajasthan Public Service Commission
Original practice questions written to the published syllabus · not past papersRPSC Veterinary Officer (Rajasthan) is a government recruitment exam run by Rajasthan Public Service Commission, for candidates in India. 150 questions, 150 marks, 2.5 hours, negative marking of one-third of a question's marks for each wrong answer (Advertisement No. 04/2025-26).
Source: rpsc.rajasthan.gov.in.
Checked against the exam body's published information. Formats and fees change; confirm the current edition there before you book.
The bacterial and related infectious diseases of livestock and horses: clinical signs, diagnosis, treatment, prevention and control.
Our 29 RPSC Veterinary Officer questions in this subject: 14 easy, 12 medium, 3 hard, across 12 units.
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
These 10 were written to RPSC Veterinary Officer and are not shown on any other exam's page.
Which of the following is NOT one of the five points of the classical five-point mastitis control plan?
B. Vaccination of all cows against Staphylococcus aureus
The five points are post-milking teat disinfection, dry-cow therapy, prompt treatment of clinical cases, culling of chronic cases and milking-machine maintenance. Staph. aureus vaccines exist in some countries but give limited protection and were never part of the plan.
Of 200 cattle in a village, 12 developed anthrax and 10 of these died. What are the attack rate and case fatality rate?
C. 6% and 83.3%
Attack rate = 12/200 = 6%. Case fatality = deaths/cases = 10/12 = 83.3%. Mortality rate (10/200 = 5%) is a different measure, and confusing the two gives the distractors.
Haemorrhagic septicaemia in Asian cattle and buffalo is caused by Pasteurella multocida serotype:
D. B:2
B:2 (6:B) causes HS in Asia; E:2 (6:E) in Africa, the tempting distractor. Capsular type A strains cause fowl cholera and respiratory disease; type D toxigenic strains are involved in atrophic rhinitis.
During the first week of the monsoon, a buffalo has fever of 41.5 °C, profuse salivation, a hot painful swelling of the throat and brisket and noisy breathing. Two others died suddenly yesterday. What is the most appropriate action for the rest of the herd?
C. Vaccinate the healthy animals, isolate and treat the sick early, and notify
This is typical HS; early treatment helps only febrile cases, and vaccination of the healthy herd plus isolation limits losses. Sudden-death carcasses must not be opened before anthrax is excluded by a smear; waiting two weeks for vaccination loses the herd.
A horse in northern India has nodules along thickened lymphatics of the hind limb discharging honey-like pus, and star-shaped scars on the nasal septum. What is the correct course of action?
A. Notify the authority, isolate and confirm the diagnosis; confirmed cases are destroyed, not treated
Farcy buds and nasal scars indicate glanders, a scheduled disease in India and WOAH-listed; confirmed cases are humanely destroyed and premises quarantined. There is no vaccine, and treatment is not permitted in most countries because it creates carriers and exposes people.
'Lumpy jaw' in cattle is caused by:
B. Actinomyces bovis
Actinomyces bovis causes rarefying osteomyelitis of the jaw (lumpy jaw). Actinobacillus lignieresii causes wooden tongue, a soft-tissue disease; the similar names are the trap.
A 400 kg cow with actinobacillosis is to receive sodium iodide at 70 mg/kg as a 10% solution by slow intravenous injection. What volume is needed?
D. 280 mL
Dose = 400 x 70 = 28,000 mg = 28 g. A 10% solution contains 10 g per 100 mL (100 mg/mL), so 28,000/100 = 280 mL. Reading 10% as 1 g/mL gives 28 mL; reading it as 1% gives 2,800 mL; reading it as 10 g/mL gives 2.8 mL. Confirm against the product label and your national formulary.
Which mastitis pathogen is associated with 'summer mastitis' of dry cows and heifers spread by flies?
D. Trueperella pyogenes
T. pyogenes, often with anaerobes, causes summer mastitis with foul-smelling pus in dry cows and heifers, spread by the fly Hydrotaea irritans in parts of Europe. C. bovis is a minor contagious pathogen.
The most important safeguard against zoonotic Mycobacterium bovis infection from milk is:
D. Pasteurisation
Pasteurisation kills M. bovis; refrigeration only slows bacterial growth, and filtration removes debris, not bacteria. Unpasteurised milk causes extrapulmonary tuberculosis, especially cervical lymphadenitis in children.
India's status for contagious bovine pleuropneumonia according to WOAH is:
C. Officially recognised free
India holds WOAH official free status for CBPP. WOAH grants official status for CBPP, and countries must maintain surveillance to keep it.
This plan follows where our questions actually fall, so the time goes where the marks are likely to be. It is our reading of the syllabus, not the exam body's weighting.
Read the manual chapters for these first and do every worked question you can find on them.
Aim for one sitting per unit, then mixed questions across them.
Learn the definitions, classifications and standard numbers; these units are more often recalled than worked.
Come back to these after a first pass, untimed, and read every explanation, including for the options you rejected.
Do these early in revision so they are fast on the day.
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