Science and Technology Question Answer
Q61. What was the code name of the first nuclear test conducted by USA on 16th July, 1945
(a) Hurricane
(b) Trinity
(c) RDS-1
(d) None of the above
Answer: (b) Trinity
Q62. How many US patents are in the name of Thomas Alva Edison
(a) 176
(b) 435
(c) 822
(d) 1093
Answer: (d) 1093
Q63. Who had developed the polio vaccines
(a) Jonas Salk
(b) Alexander Fleming
(c) Edward Jenner
(d) Howard Florey
Answer: (a) Jonas Salk
Q64. Edward Jenner is famous for the invention of
(a) Penicillin
(b) Smallpox vaccine
(c) Measles vaccine
(d) None of the above
Answer: (b) Smallpox vaccine
Q65. Which gas is also known as laughing gas
(a) Nitrogen
(b) Nitrous Oxide
(c) Chlorine
(d) Methane
Answer: (b) Nitrous Oxide
Q66. Which gas contains in largest volume in our atmosphere
(a) Oxygen
(b) Carbon
(c) Nitrogen
(d) Argon
Answer: (c) Nitrogen
Q67. Which one is the largest organ in a human body
(a) Skin
(b) Liver
(c) Kidney
(d) Lung
Answer: (a) Skin
Q68. Which blood goup is known as 'universal recipients' group
(a) AB Group
(b) A Group
(c) B Group
(d) O Group
Answer: (a) AB Group
Q69. Which blood goup is known as 'universal donors' group
(a) AB Group
(b) A Group
(c) B Group
(d) O Group
Answer: (d) O Group
Q70. Who is known as the inventor of steam engine
(a) William Murdoch
(b) James Watt
(c) Graham Bell
(d) Michael Faraday
Answer: (b) James Watt
Q71. What is the SI unit of electric current
(a) Volt
(b) Watt
(c) Ampere
(d) Ohm
Answer: (c) Ampere
Q72. Which vitamin is produced by the sunlight
(a) Vitamin A
(b) Vitamin B
(c) Vitamin C
(d) Vitamin D
Answer: (d) Vitamin D
Q73. Total number of chambers in a human heart
(a) 1
(b) 3
(c) 4
(d) 2
Answer: (c) 4
Q74. The hardest substance available in the world is
(a) Platinum
(b) Gold
(c) Diamond
(d) Iron
Answer: (a) Platinum
Q75. Which type of instrument is used to measure moisture in the atmosphere
(a) Barometer
(b) Hydrometer
(c) Hygrometer
(d) None of the above
Answer: (c) Hygrometer
Practice Test Exam