Q. The term EURO-IV in the context of modern cars refers to -
1) Emission from cars
2) Speed of cars
3) Fuel efficiency
4) Torque available
Q. If a barometer carries water instead of mercury, then the height of the column for a pressure equivalent to 75 cm of mercury would be -
1) 1050 cm
2) 1020 cm
3) 1000 cm
4) 5.5 cm
Q. Which of the following statements is wrong?
1) Ionic bonds are non-rigid and non-directional
2) Compounds formed by ionic bonds are non-conductors of electricity
3) Ionic bonds are formed by the transfer of electrons from a metal to a non- metal atom
4) Compounds formed by ionic bonds are hard and brittle
Q. What do you understand by the term 'BINDING ENERGY'?
1) The energy released when a nucleus is formed from protons and neutrons
2) The force of attraction between an electron in the first orbit and the nucleus
3) Electrons belonging to the same major energy level
4) Energy associated with a photon
Q. The isotopes of an element are characterized by which of the following?
1) The presence of neutrons of unusual size
2) Different numbers of electrons in the atom
3) Different numbers of protons in the nucleus
4) Different numbers of neutrons in the nucleus
Q. Which of the following is being used for applications such as assessing the depth of oceans, measuring thickness, determining the position of Icebergs, detecting flaws in metals, etc.?
1) Ultrasonic waves
2) X-rays
3) Light waves
4) Y-rays
Q. The sound waves in the audible range have Frequencies in the range of -
1) 20 Hz to 20,000 Hz
2) 0.5 Hz to 5 Hz
3) 1 Hz to 10 Hz
4) 20,000 hz to 40,000 Hz
Q. Which of the following stars lies nearest to our solar system?
1) Barnard's Star
2) Alpha Centauri A
3) Sirius A
4) Proxima Centauri
Q. What is the term AGMARK used for?
1) Grading various agricultural commodities
2) Grading battery toys
3) Grading polyester textiles
4) Grading engine lubricating oils
Q. Whose entry into India resulted in the introduction of maize crops in the country?
1) Dutch
2) English
3) French
4) Portuguese
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