Practice Gk questions set 2 - general science mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   Which one among the following is the correct value of the gravitational force of the Earth acting on a body of mass 1 kg?

(a) 89 N

(b) 9. 8 N

(c) 8. 9 N

(d) 98 N

Q-2)   A body weighs 5 kg on equator. At the poles it is likely to weight

(a) 0 kg

(b) less than 5 kg but not zero

(c) 5 kg

(d) more than 5 kg

Q-3)   Consider the following statements: A body weighs less at the equator than at the poles because:

1. earth rotates about its axis.
2. the ice cap at the poles increases gravitational pull.
3. equatorial diameter is greater than the polar diameter.
4. of some unknown facts.

Which of the statements given above is/are incorrect?

(a) 1 and 3

(b) 3 only

(c) 1 and 2

(d) 4 only

Q-4)   Flow velocities in an incompressible fluid can be measured with which one of the following?

(a) Strain gauge

(b) Venturi tube

(c) Barometer

(d) Manometer

Q-5)   Consider the following statements:

1. The gravitational force exerted by the sun on the moon is greater than the gravitational force exerted by the earth on the moon.
2. A heavy body falls at a faster rate than a light body in vacuum.

Which of the following statements given above is/are correct ?

(a) Both 1 and 2

(b) 2 only

(c) 1 only

(d) Neither 1 nor 2

Q-6)   Consider the following statements : If there were no phenomenon of capillarity

1. it would be difficult to use a kerosene lamp
2. one would not be able to use a straw to consume a soft drink
3. the blotting paper would fail to function
4. the big trees that we see around would not have grown on the Earth

Which of the statements given above are correct?

(a) 2 and 4 only

(b) 1, 3 and 4 only

(c) 1, 2 and 3 only

(d) 1, 2, 3 and 4

Q-7)   A block of ice is floating in a beaker containing liquid of specific gravity greater than one. When ice melts completely what happens to the level of liquid in the beaker?

(a) It will rise up

(b) It will go down

(c) It will remain the same as before

(d) It may or may not change depending upon size of beaker

Q-8)   If the radius of the earth were to shrink by one percent, its mass remaining the same, the value of g on the earth’s surface would:

(a) decrease by 0.5%

(b) increase by 2%

(c) increase by 0.5%

(d) decrease by 2%

Q-9)   Purity of a metal can be determined with the help of

(a) Archimedes principle

(b) Boyle's law

(c) Pascal's law

(d) Conservation of mass principle

Q-10)   A spring balance is graduated on sea level. A body of mass 1 kg is weighed at consecutively increasing heights from the earth’s surface, then what would be the weight indicated by the balance?

(a) Weight will remain same

(b) Weight will go on decreasing continuously

(c) Weight will go on increasing continuously

(d) Weight will first increase and then decreases