HAU B.Sc. 4 Years Programme Question Paper : CCS Haryana Agricultural University

Organisation : CCS Haryana Agricultural University
Course : B.Sc. 4 Years Programme
Document Type : Old Question Paper
Website : http://admissions.hau.ac.in/

HAU B.Sc.Question Paper

CCS Haryana Agricultural University, B.Sc. Old Question Paper

Related / Similar Question Paper : HAU B.Sc. 6 Years Programme Question Paper

B.Sc. Old Question Paper

1. While walking on smooth surface one should take small steps to ensure
(A) Large friction
(B) Small friction
(C) Larger normal force
(D) Smaller normal force

2. What happens to a vehicle travelling in an unbanked curved path if the friction between the road and tires suddenly disappears
(A) Moves along tangent
(B) Moves radially in
(C) Moves radially out
(D) Moves along the curve

3. A ball of mass 0.2 kg strikes an obstacle and moves at 600 to its initial direction. If its speed changes from 20m/s to 10m/s the magnitude of impulse received by the ball is ——Ns
(A) 2v7
(B) 2v3
(C) 2v5
(D) 3v2

4. A spacecraft of mass 2000kg moving with 600 m/s suddenly explodes into two pieces. One piece of mass 500 kg is stationary. The velocity of other part in m/s is
(A) 600
(B) 800
(C) 1500
(D) 1000

5. 16 kg, 8 kg, 4 kg. The force on 16 kg is………?
(A) 140N
(B) 120N
(C) 100N
(D) 80N

6. A man of mass 40 kg is at rest between the walls. If coeff. of friction between man and wall is 0.8, find the normal reaction exerted by wall on man (take g = 10 m/s/s)
(A) 100 N
(B) 250 N
(C) 80 N
(D) 50 N

7. Find minimum height in terms of D to complete the loop
(A) 7D/4
(B) 9D/4
(C) 5D/4
(D) 3D/4

8. Gravitational force between two bodies is F. The space around the mass is now filled with a liquid of specific gravity 3. The gravitational force will be
(A) F/9
(B) 3F
(C) F
(D) F/3

9. A man weighs 75 kg on the surface of earth. His weight on the geostationary satellite is
(A) infinity
(B) 150kg
(C) zero
(D) 75/2 kg

10. g at a depth of 1600 km inside the earth in m/s/s is
(A) 6.65
(B) 7.35
(C) 8.65
(D) 4.35

11. A block of mass 19 M is suspended by a string of length 1m. A bullet of mass M hits it and gets embedded in it. If the block completes the vertical circle the velocity of bullet in m/s is
(A) 140
(B) 20v19.6
(C) 20v9.8
(D) 20

12. A rubber ball falls from a height of 4m and rebounds to 1.5m. The % loss of energy during the impact is
(A) 20
(B) 62.5
(C) 23
(D) 60

13. 25 kg of sand is deposited each second on a conveyor belt moving at 10m/s. The extra power required to maintain the belt in motion is
(A) 2600W
(B) 250W
(C) 325W
(D) 2500W

14. A uniform rod of mass M and length L standing vertically on a horizontal floor falls without slipping at the bottom. The moment of inertia will be
(A) ML2/3
(B) ML2/6
(C) ML2/9
(D) ML2/12

15. If the velocity of C.M of a rolling body is V, then velocity of highest point in the body will be
(A) v2V
(B) V
(C) 2V
(D) V/v2

16. The angular momentum of two rotating bodies are equal. If the ratio of their M.I is 1:4, the ratio of their rotational K.E is
(A) 1:2
(B) 2:1
(C) 1:4
(D) 4:1

17. The level of water in a tank is 5m. A hole 1 cm2 is made at the bottom. The rate of leakage in m3/s is (take g= 10 m/s/s)
(A) 10-3
(B) 10-4
(C) 10
(D) 10-2

18. Two blocks A and B float in water. A floats with 1/4th of its volume immersed and B floats with 3/5th of its volume immersed. The ratio of their densities is
(A) 5:12
(B) 12:5
(C) 3:20
(D) 20:3

19. The terminal velocity of a spherical ball of lead of radius R is Vwhile falling through a viscous liquid varies with R such that
(A) V/R is constant
(B) VR is constant
(C) V is constant
(D) V/R2 is constant

20. A hydraulic press uses a piston of 100 cm2to exert a force of 107dynes on water. The area of the other piston that supports a mass of 2000 kg is (take g = 10m/s/s)
(A) 100cm2
(B) 109 cm2
(C) 2 x 104 cm2
(D) 2 x 1010 cm2

21. When kerosene and coconut oil of coeff. of viscosity 0.002 and 0.0154 Ns/m2 are followed through the same pipe, under same pressure difference and same time collects 1 lit of coconut oil. The volume of kerosene that flows is
(A) 5.5 lit
(B) 6.6 lit
(C) 7.7 lit
(D) 8.8 lit

22. There is a circular hole in metal plate. When the plate is heated the radius of the hole becomes
(A) increased
(B) decreased
(C) unchanged
(D) depends on metal

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