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.Management Sciences
Category: Everyday Science Mcqs
Vacuum tubes have been replaced by__________?
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A. Conductors
B. Diodes
C. Transistors
D. None of these
A device that converts mechanical energy into electric energy is called_______?
A. Motor.
B. Transformer.
C. Coil.
D. Generator.
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The total energy of revolving electron in an atom_____________
A. Will always be positive
B. Can never be positive
C. Can have any value above zero
D. Cannot be negative
The instrument which measures very high temperature is____________?
A. Manometer
B. Thermostat
C. Chronometer
D. Pyrometer
E. None of these
Mohs’ Scale” is used to indicate the_________?
A. Degree of hardness of minerals
B. Degree of viscosity of a liquid
C. Degree of elasticity of a material
D. Degree of brittleness of a substance
Average salinity or ratio of salt as per kilogram of water of ocean is__________?
A. 35 grams
B. 55 grams
C. 32 grams
D. 42 grams
Dioptre is used to measure ?
A: lens refractive power
B: luminous intensity
C: power
D: distance of heavenly bodies
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