HSSC Fire Operator Cum Driver (30-12-2023)Total Questions: 10081. Which number will come in the place of question mark?7, 26, 63, 124, 215, 342, ?(a) 391(b) 481(c) 511(d) 421(e) UnattemptedCorrect Answer: (c) 51182. Utility rope for raising or lowering moving parts of extension ladder is called:(a) Hard line(b) Puller(c) Wire rope(d) Halyard(e) UnattemptedCorrect Answer: (d) Halyard83. Foam extinguisher can either gas cartridge type or ... type.(a) Chemical pressure(b) Stored pressure(c) Cylinder pressure(d) Hydraulic pressure(e) UnattemptedCorrect Answer: (b) Stored pressure84. 19.5% oxygen level is considered as a ... condition.(a) Minimum safe(b) Fainting(c) Normal(d) Enriched(e) UnattemptedCorrect Answer: (a) Minimum safe85. In the wet riser system, size of the vertical pipe should not be less than ... mm internal diameter.(a) 65 mm(b) 100 mm(c) 50 mm(d) 74 mm(e) UnattemptedCorrect Answer: (b) 100 mm86. What is the full form of TEC?(a) Typical Environment Control(b) Ternary Eutectic Chloride(c) Tender Equipment Commission(d) None of these(e) UnattemptedCorrect Answer: (b) Ternary Eutectic Chloride87. Volts = Amps × ................(a) Ohms(b) Resistance(c) Watts(d) Voltage(e) UnattemptedCorrect Answer: (a) Ohms88. Sparge pipe is useful to protect:(a) Engine from heating(b) Tyres from ground fire to water the road(c) Vehicle from radiant heat(d) Hoses from damaging(e) UnattemptedCorrect Answer: (b) Tyres from ground fire to water the road89. Fire involving combustible metals are classified as a classes..........fire.(a) A(b) C(c) B(d) D(e) UnattemptedCorrect Answer: (d) D90. Hydrostatic pressure testing is required for water extinguishers in every …………….. years.(a) 3(b) 8(c) 5(d) 10(e) UnattemptedCorrect Answer: (c) 5Submit Quiz« Previous12345678910Next »