Which of the following mixture of gases is required in gas welding...? Mcqs

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Which of the following mixture of gases is required in gas welding...?

(A) Oxygen and ethylene
(B) Oxygen and hydrogen

(C) Acetylene and oxygen
(D) Acetylene and hydrogen

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The energy released during fission or fusion reaction is called...?

(A) Solar energy
(B) Geothermal energy

(C) Tidal energy
(D) Nuclear energy

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What is meant by intermediate goods and services...?

(A) The same as capital goods, such as plants, buildings, vehicles, and machinery.
(B) Products which one firm buys off another and then uses up in its own products.

(C) All inputs bought by firms, including labor and raw materials.
(D) Imports.

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The universe is continuously ____...?

(A) Contracting
(B) Expanding

(C) Static
(D) None of these

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Symbol of Iron is__________...?

(A) Na
(B) Fr

(C) Fe
(D) Zn

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The moon rotates on its axis in how many days...?

(A) 14.8 days
(B) 17.5 days

(C) 29.7 days
(D) 27.3 days

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The temperature of the dead body is_______________...?

(A) 0 ‘C
(B) 37 ‘

(C) Room Temperature
(D) Temperature of the place where it is kept

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Which of the following have maximum calorific value...?

(A) Carbohydrates
(B) Fats

(C) Proteins
(D) Vitamins

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Which one of the following is not a way to reduce friction...?

(A) Smooth and polishing surfaces
(B) Less contact area

(C) Oil and lubricants
(D) Ball bearing and rollers

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Moon light reaches to earth in___________seconds...?

(A) 0.3 seconds
(B) 1.3 seconds

(C) 2.3 seconds
(D) 3.3 seconds

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