An astronaut inside a spacecraft is in a state of weightlessness. This implies that...? Mcqs

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An astronaut inside a spacecraft is in a state of weightlessness. This implies that...?

(A) The mass of the astronaut is reduced to zero
(B) Gravity inside the spacecraft ceases to act

(C) The astronaut is outside the influence of the earth’s gravitational force
(D) The astronaut and the spacecraft are both in a free-failing state

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Nearest star to the sun is: ___________...?

(A) Proxima Centauri
(B) Alpha Scorpius

(C) Beta Orionis
(D) Vegetal

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Linear thermal expansion of a solid depend upon ____...?

(A) Increasing in temperature
(B) Original length

(C) Properties of material
(D) All of these

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For glavinizing of iron which of the following metals is used ...?

(A) Aluminimum
(B) Copper

(C) Zinc
(D) Lead

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Vitamin B2 is also called as__________...?

(A) Riboflavin
(B) Thiamine

(C) Ascorbic Acid
(D) Niacin

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What happens when water solidifies as ice on cooling from 4°C to 0°C...?

(A) Its volume increases and density decreases
(B) Its volume increases and density increases

(C) Its volume decreases and density decreases
(D) Its volume decreases and density increases

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What cells are involved in bone remodeling...?

(A) Osteoblasts
(B) Osteoclasts

(C) Osteocytes
(D) All of these

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Which of the following is an example of wheel and axle...?

(A) Car Steering
(B) Knife

(C) Seesaw
(D) Bottle opener

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When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ...?

(A) These gases are not present
(B) These gases are like plasma

(C) These gases are frozen
(D) These gases are volatile

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The Virus of AIDS affects the growth of_____________...?

(A) Hemoglobin
(B) RBCs in blood

(C) T cells in blood
(D) Grey Cells in blood

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