10 Important General Science MCQs for most of the competitive exams
Que 1: Iodised salt is a
(A) Mixture of potassium iodide and common salt
(B) Mixture of molecular iodine and common salt
(C) Compound formed by combination of potassium iodide and common salt
(D) Compound formed by molecular iodine and common salt
Correct Ans: A
Que 2: Antacids are commonly used to get rid of acidity in the stomach. a commonly used antacid is
(A) Sodium hydrogen phthalate
(B) Magnesium hydroxide
(C) Calcium hydroxide
(D) Magnesium acetate
Correct Ans: B
Que 3: Which instrument is used to measure altitudes in aircraft's ?
(A) Audiometer
(B) Ammeter
(C) Altimeter
(D) Anemometer
Correct Ans: C
Que 4: Which instrument is used to measure depth of ocean ?
(A) Galvanometer
(B) Fluxmeter
(C) Endoscope
(D) Fathometer
Correct Ans: D
Que 5: Name of the instrument to measure atomspheric pressure ?
(A) Barometer
(B) Barograph
(C) Bolometer
(D) Callipers
Correct Ans: A
Que 6: A rectifier is an electronic device used to convert
(A) AC voltage into DC voltage
(B) DC voltage into AC voltage
(C) Sinusoidal pulse into square pulse
(D) None of the above
Correct Ans: A
Que 7: In step down transformer, the AC output gives the
(A) Current more than the input current
(B) Current less than the input current
(C) Current equal to the input current
(D) Voltage more than the input voltage
Correct Ans: A
Que 8: When ice melts, its
(A) Volume decreases
(B) Volume increases
(C) Volume and mass both decrease
(D) Volume decreases while mass increases
Correct Ans: A
Que 9: In absorption of insolation, the most significant part is played by
(A) CO2
(B) Ozone
(C) Oxygen
(D) Haze
Correct Ans: D
Que 10: Which of the following is a large blood vessel that carries blood away from the heart?
(A) Vein
(B) Artery
(C) Capillary
(D) Nerve
Correct Ans: B
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