Vacuum tubes have been replaced by__________...? Mcqs

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Vacuum tubes have been replaced by__________...?

(A) Conductors
(B) Diodes

(C) Transistors
(D) None of these

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The springs in brakes and clutches are used ______...?

(A) To restore original position
(B) To measure forces

(C) To absorb shocks
(D) To absorb strain energy

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What does Angstrom measure...?

(A) Quantity
(B) Speed

(C) Length
(D) None of these

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Instrument of rain gauge is _________...?

(A) Drosometer
(B) Ombrometer

(C) Micrometer
(D) Pyrometer

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The disease “Itai Itai “is caused by____________...?

(A) Carbon
(B) Cadmium

(C) Manganese
(D) None of these

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The electric field can be detect ______...?

(A) Photon
(B) Neutron

(C) Proton
(D) Electron

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In which layer of atmosphere does commercial aircrafts usually fly...?

(A) Stratosphere
(B) Troposphere

(C) Mesosphere
(D) Thermosphere

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Hepatitis is a disease of which of the following organ...?

(A) Heart
(B) Liver

(C) Lungs
(D) Brain

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What is the harm from the depletion of Earth's Ozone Layer...?

(A) The average operation of the Earth's surface will increase gradually
(B) The oxygen content of the atmosphere will decrease

(C) Increased amount of UV rays will reach Earth's surface
(D) Sea levels will rise as the glaciers' caps will gradually melt

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If an opaque object is moved further away from the light source, the shadow gets _____...?

(A) Smaller
(B) Bigger

(C) Darker
(D) Lighter

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