General Science Questions and Answers
General Knowledge General Science Questions with Answers enhance scientific understanding in physics, chemistry, and biology. Useful for SSC, RRB, and NDA exams, these questions strengthen your general science foundation
General Science
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124 questions
62. An ordinary tube light used for lighting purposes contains
- fluorescent material and an inert gas
- one filament, reflective material and mercury vapour
- fluorescent material and mercury vapour
- two filaments, fluorescent material and mercury vapour
63. The term ‘Black Box’ is more commonly used in relation to which of the following?
- It is a box in which high grade uranium is kept to prevent radiation.
- It is a time capsule in which records of important events are kept to be opened at a later date,
- It is a flight recorder in an aero plane.
- None of these
64. The lightning conductor used in building, protects the building by
- dissipating the electric charge away from the building
- conducting the lightning safely to the ground
- absorbing the electric charge
- None of these
65. Sodium vapour lamps are preferred over incandescent lamp because of
- higher tolerance to voltage fluctuation
- higher intensity of illumination
- easy installation
- None of these
66. The principle of working of periscope is based on
- reflection only
- refraction only
- reflection and refraction
- reflection and interference
67. The working of the quartz crystal in the watch is based on
- Johnson effect
- Photoelectric effect
- Edison effect
- Piezo electric effect
68. A handwritten message can be instantly transmitted as such to any part of the world through
- Speed post
- Telex
- Electronic mail
- FAX
69. Which of the following combinations of aperture and shutter speed of a camera will allow the maximum exposure?
- F-5.6,1/l000
- F-8,l/250
- F-16,l/l25
- F-22,1/60