Which of the following layers make radio transmission possible...? Mcqs

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Which of the following layers make radio transmission possible...?

(A) Troposphere
(B) Ionosphere

(C) Mesosphere
(D) Stratosphere

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Latest MCQs

For water purification, we use...?

(A) Chlorine
(B) Bromine

(C) Plants
(D) Young man

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Latest MCQs

Exosphere interacts with ___________ of Earth at roughly distance of 10,000 km....?

(A) Electrosphere
(B) Magnetosphere

(C) Spectrosphere
(D) Echosphere

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In an acidic medium, methyl orange is orange (red) and in a basic medium, it is...?

(A) Red
(B) Yellow

(C) Pink
(D) Blue

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Ionic crystals have ______...?

(A) High melting points
(B) Moderate melting points

(C) Low melting points
(D) None of above

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Tooth decay is caused by...?

(A) Salt
(B) Sugar

(C) Calcium
(D) Formalin

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Which of the following is the SI unit of volume...?

(A) Meter cube
(B) Cm cube

(C) mm cube
(D) Km cube

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The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________...?

(A) The hair barging against the charged comb
(B) Small electric sparks

(C) The rubbing of the comb with the hair
(D) None of the above

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Diesel engine was discovered by___________...?

(A) Paul Muller
(B) Faraday

(C) Waldeyer
(D) Rudolf Diesel

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If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________...?

(A) Annealing
(B) Quenching

(C) Tempering
(D) Nitriding

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