HSSC Fire Operator Cum Driver (30-12-2023)Total Questions: 10011. In the CO₂ extinguisher, CO₂ is retained in a liquid condition at about ................ bars pressure.(a) 25(b) 51(c) 41(d) 61(e) UnattemptedCorrect Answer: (b) 5112. The diameter of the hose reel is normally :(a) 10 mm(b) 19 mm(c) 36 mm(d) 50 mm(e) UnattemptedCorrect Answer: (b) 19 mm13. The Human Development Report is published annually by :(a) I. M. F.(b) I. B. R. D.(c) U. N. D. P.(d) U. N. E. S. C. O.(e) UnattemptedCorrect Answer: (c) U. N. D. P.14. The integrating factor of dy ÷ dx + y 1÷x y is :(a) xeᵡ(b) eᵡ/x(c) xe¹/²(d) x/eᵡ(e) UnattemptedCorrect Answer: (b) eᵡ/x15. Who was the First President of United States?(a) Thomas Jefferson(b) George Washington(c) Truman(d) None of the above(e) UnattemptedCorrect Answer: (b) George Washington16. ................ is a lowest temperature at which a material will emit vapor combustible in air mixture.(a) Flash over(b) Fire point(c) Flash point(d) Flash up(e) UnattemptedCorrect Answer: (c) Flash point17. Which of the following are non-flammable gases ?(a) C₃H₈, CH₄(b) H₂, C₄H₁₀(c) CO₂, SO₂, N₂(d) C₂H₄, C₂H₂(e) UnattemptedCorrect Answer: (c) CO₂, SO₂, N₂18. Fittings used for joining two lengths of hose together or to an apparatus are called as :(a) Couplings(b) Diffuser(c) Branch pipe(d) Nozzles(e) UnattemptedCorrect Answer: (a) Couplings19. The Code of Practice for fire safety of buildings exit requirement as laid down in the :(a) IS-1644 : 1988(b) IS-1654 : 1988(c) IS-1532 : 1990(d) IS-1650 : 1988(e) UnattemptedCorrect Answer: (a) IS-1644 : 198820. ................ suit helps the fireman to work very close to the flames.(a) Proximity suit(b) Entry suit(c) Approach suit(d) Jacket suit(e) UnattemptedCorrect Answer: (a) Proximity suitSubmit Quiz« Previous12345678910Next »
