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

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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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The Percentage of Water used for Drinking in the world is...?

(A) 1%
(B) 10%

(C) 3%
(D) 5%

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Number of electrons lost by atoms of group IIIA equals ______...?

(A) 1
(B) 2

(C) 3
(D) 4

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Value of 1 Farady is equal to ______...?

(A) 9.65 C
(B) 9650 C

(C) 96500 C
(D) 965 C

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Epileptic and parasitic plants grow on which of the following...?

(A) Plants
(B) Sea

(C) Dogs
(D) Rocks

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The gas usually filled in the electric bulb is___________...?

(A) Nitrogen
(B) Hydrogen

(C) Carbon dioxide
(D) Oxygen

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_____ species are given scientific names....?

(A) All
(B) Some

(C) Few
(D) None

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What do you call the positive electrode of an electric cell...?

(A) Diode
(B) Anode

(C) Grid
(D) Cathode

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Who discovered the Polio Vaccine...?

(A) Jonas Salk
(B) Jaber Ibn Hayan

(C) Selman Waksman
(D) None of these

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Inspiration involves ______...?

(A) Contraction of intercostals muscles
(B) Contraction of diaphragm

(C) Inward movement of ribs
(D) Both a and b

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