TNPSC Science and Technology Gk Questions and Answers - 2

Question: 6

Which of the following gases is obtained by the reaction of water with calcium carbide?

(A) Water gas

(B) Methane

(C) Ethylene

(D) Acetylene

Question: 7

On which of the following factors does the temperature of steam in a pressure cooker depend?

(A) Size of the pressure cooker

(B) Quantity of cooking material

(C) Temperature of the flame

(D) Material of which cooker is made

Question: 8

The sweetest sugar is

(A) Lactose

(B) Fructose

(C) Glucose

(D) Sucrose

Question: 9

The smallest cells in the human body are

(A) Epithelial cells

(B) Blood cells

(C) Muscle cells

(D) Nerve cells

Question: 10

An electron microscope gives higher magnification than an optical microscope because

(A) The wavelength of electrons is smaller as compared to the wavelength of visible light

(B) The electrons have more energy than the light particles

(C) The velocity of electrons is smaller than that of visible light

(D) It uses more powerful lenses