(A) 88 days
(B) 365 days
(C) 2 years
(D) 98 days
Answer: (A) 88 days
Q. Orbital period of the planet Earth around the sun is:?
(A) 88 days
(B) 365 days
(C) 2 years
(D) 98 days
Answer: (B) 365 days
Q. Orbital period of the planet Venus around the sun is:?
(A) 88 days
(B) 225 days
(C) 365 days
(D) 687 days
Answer: (B) 225 days
(A) Steel
(B) Rubber
(C) Glass
(D) Sponge
Answer: (A) Steel
Q. Modulus of elasticity is a mechanical property that measures the stiffness of a solid. The modulus of elasticity of steel is:
(A) 120 GPa
(B) 180 GPa
(C) 200 GPa
(D) 250 GPa
Answer: (C) 200 GPa
Q. What is the SI unit of Young’s modulus?
(A) Mole
(B) Pascal
(C) Ampere
(D) Candela
Answer: (B) Pascal
(A) Copper and Zinc
(B) Tin and Zinc
(C) Copper and Tin
(D) Iron and Zinc
Answer: (C) Copper and Tin
Q. Brass is an alloy of:
(A) Copper and Zinc
(B) Tin and Zinc
(C) Copper and Tin
(D) Iron and Zinc
Answer: (A) Copper and Zinc
Q. What is the percentage of tin in Bronze alloy?
(A) 12 – 12.5 %
(B) 15 – 15.5 %
(C) 18 – 18.5 %
(D) 21 – 21.5 %
Answer: (A) 12 – 12.5 %
(A) Speed of sound
(B) Density of milk
(C) Humidity of air
(D) Specific gravity of liquids
Answer: (C) Humidity of air
Q. Who invented the first hygrometer in 1783 using human hair to measure humidity?
(A) Swiss physicist Horace Benedict de Saussure
(B) German Albert Einstein
(C) Swiss physicist Kappeller
(D) None of these
Answer: (A) Swiss physicist Horace Benedict de Saussure
Q. The first crude hygrometer was invented in 1480 by:
(A) Swiss physicist kappeller
(B) Italian polymath Leonardo da Vinci
(C) Swiss physicist Albert Einstein
(D) None of these
Answer: (B) Italian polymath Leonardo da Vinci
(A) Biotin
(B) Thiamine
(C) Niacin
(D) Pyridoxine
Answer: (D) Pyridoxine
Q. Pyridoxine is also known as vitamin:
(A) B6
(B) B7
(C) B9
(D) B12
Answer: (A) B6
Q. Deficiency of following vitamin cause diseases like beriberi which may increase the amount of lactic acid and pyruvic acid within the blood:
(A) Biotin
(B) Thiamine
(C) Niacin
(D) Pyridoxine
Answer: (B) Thiamine