Question 461 Which of the following has zero electron affinity ? A) Oxygen B) Fluorine C) Nitrogen D) Neon No Details
Question 462 The minimum temperature at which a combustible substance catches fire is called? A) fireless temperature B) ignition temperature C) static temperature D) optimum temperature No Details
Question 463 For respiration in deep sea, divers use mixture of? A) Oxygen and helium B) Oxygen and hydrogen C) Oxygen and carbon dioxide D) Oxygen, Helium & nitrogen No Details
Question 464 The first metal to be used by man was? A) Aluminum B) copper C) Iron D) Silve No Details
Question 465 Which among the following is the correct almost equivalent to 1 MMBTU Natural Gas ? A) 1.054615 gigajoule B) 0.1054615 gigajoul C) 10.54615 gigajoule D) 105.4615 gigajoule No Details
Question 466 A baby diaper, if tested with various solutions, will absorb maximum amount of which among the following:? A) Distill Water B) Drinking water C) Hard water D) Urine No Details
Question 467 Which among the following substances is being used most commonly for producing synthetic jet Fuel? A) Coal B) Natural Gas C) Plastic Waste D) Biomass No Details
Question 469 The three methods of science are observation, experimentation and ? A) Hypothesis B) Measurement C) Deduction D) inference No Details
Question 470 Which gas in the atmosphere saves us from the ultra violet rays of the sun? A) Nitrogen B) Oxygen C) Ozone D) Carbon Monoxide No Details