Engineering :: Applied Mechanics
161.
During SHM which of the following is conserved?
A. Kinetic energy
B. Potential energy
C. Total energy
D. Momentum
E. All of the above
Answer: D
Explanation:
162.
During planetary motion which of the following remains constant?
A. Augular speed
B. Linear velocity
C. Angular acceleration
D. Total angular momentum
E. All of the above
Answer: B
Explanation:
163.
A point moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one. The locus of the path traced by the point will be a
A. Circle
B. Cycloid
C. Involute
D. Hyperbola
E. Ellipsc
Answer: C
Explanation:
164.
The dimensions of gravitational constant G
Answer: D
Explanation:
165.
A body weighing one tonne falls through 8 cm on to a spring of stiffness 500 kg/cm the spring will be compressed through
Answer: C
Explanation:
166.
Which of the following is not a unit of energy?
A. Joule
B. kW
C. N-m
D. Electron volt
E. Watt-hour
Answer: B
Explanation:
167.
One newton is equal to
A. 103 dynes
B. 104 dynes
C. 105 dynes
D. 106 dynes
E. 107 dynes
Answer: C
Explanation:
168.
The gravitational field intensity is maximum at the
A. equator
B. pole
C. centre of the earth
D. at a height above the surface
Answer: C
Explanation:
169.
Static friction is always
A. greater than the dynamic driction
B. less than the dynamic friction
C. equal to the dynamic friction
D. either greater or more than the dynamic friction
Answer: A
Explanation:
170.
A bullet is fired from a fifle. If the rifle recoils freely, the kinetic energy of the rifle
A. will be more than the kinetic energy of the bullet
B. will be less than the kinetic energy of the bullet
C. will be the same as the kinetic energy of the bullet
Answer: B
Explanation:
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