Q21.When the metric system was introduced in India?
Correct answer: 1-4-1957
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Q22.Where was the 1st Engineering College of Asia established?
Correct answer: Roorkee
Q23.Cytotron is the device by which is produced
Correct answer: Artificial climate
Q24.Soleckshaw is a
Correct answer: Solar rickshaw
Q25.The Magnetic Resonance Imaging (MRI) is based on the phenomenon of
Correct answer: Nuclear magnetic resonance
Q26.The laws of planetary motion were enunciated by
Correct answer: Kepler
Q27.A carbon microphone is best used in
Correct answer: Telephone
Q28.The World’s most accurate clock that loses just a second every 300 million years uses
Correct answer: Strontium atoms
Q29.‘Indian Institute of Naturopathy and Yogic Science’ is located at
Correct answer: Bangalore
Q30.Which one of the following pairs are correctly matched?
Correct answer: Space Application Centre - Ahmedabad
Q31.Which one of the following is not suitably matched?
Correct answer: Antarctic Study Centre - Bengalore
Q32.Liquid crystals are used in
Correct answer: All of the above
Q33.In an electronic watch, the component corresponding to pendulum of a pendulum clock is a
Correct answer: Crystal oscillator
Q34.The working of the quartz crystal in the watch is based on the
Correct answer: Piezo-electric effect
Q35.With which of the following is the tape of the tape recorder coated?
Correct answer: Ferromagnetic powder
Q36.The magnetic needle points to
Correct answer: North
Q37.Which of the following is nonelectromagnetic element?
Correct answer: Copper
Q38.Which one of the following metal is not attracted by a magnet?
Correct answer: Aluminium
Q39.Which of the following is in liquid form at room temperature?
Correct answer: Francium
Q40.Which one of the following is paramagnetic in nature?
Correct answer: Oxygen