Forest Guard Exam Science Quiz-1

 1. The minimum possible temperature is

(A) -373 ° C

(B) -273 ° C

(C) -171 ° C

(D) 0 ° C

ANS. (B) -273 ° C

2. At what angle should a ball be thrown horizontally so that it can cover the maximum horizontal distance?

(A) 0 °

(B) 90 °

(C) 30 °

(D) 45 °

ANS. (D) 45 °

3. Which lens is used to remove myopia?

(A) convex

(B) concave

(C) level

(D) cylindrical

ANS. (B) Concave

4. How many watts is a horsepower (H.P)?

(A) 435 watts

(B) 305 watts

(C) 746 watts

(D) 976 watts

ANS. (C) 746 watts

5. The velocity of sound wave is highest-

(A) solid

(B) in gas

(C) Fluid

(D) in a vacuum

ANS. (A) in solid

6. What is the migration velocity of the Earth?

(A) 15 km / s

(B) 21.1 km / s

(C) 7.0 km / s

(D) 11.2 km / s

ANS. (D) 11.2 km / s

7. Which color light has the highest scattering?

(A) Red

(B) Sky

(C) Yellow

(D) Purple

ANS. (D) Purple

8. Ultrasonic waves are those whose frequency is compound-

(A) is less than 20 herts

(B) is between 20 Hz to 20,000 Hz

(C) exceeds 20,000 herts

(D) None of the above

ANS. (C) exceeds 20,000 herts

9. The unit of frequency is-

(A) Hearts

(B) kg

(C) Hz / second

(D) kg / ha

ANS. (A) Hearts

10. The speed of sound in dry air is-

(A) 1,80,000 km / s

(B). 6,400 km / s

(C) 332 m / s

(D) 764 m / s

ANS. (C) 332 m / s