201. The velocity ratio of a first system of pulleys with 4 pulleys is
4
8
16
20
✅ The correct answer is option C.
Engineering Mechanics MCQs
202. The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
Newton’s first law of motion
Newton’s second law of motion
principle of conservation of energy
principle of conservat
✅ The correct answer is option D.
203. According to lami’s theorem
the three forces must be equal
the three forces must be at 120° to each other
the three forces must be in equilibrium
if the three forces ac
✅ The correct answer is option D.
204. The angle of the inclined plane at which a body just begins to slide down the plane, is called helix angle.
TRUE
FALSE
✅ The correct answer is option B.
205. The moment of inertia of a square of side a about its base is a4/ 3.
TRUE
FALSE
✅ The correct answer is option A.
207. In a framed structure, as shown in the below figure, the force in the member AC is numerically equal to the force in member BC.
Correct
Incorrect
✅ The correct answer is option A.
209. A lift moves downwards with an acceleration of 9.8 m/s2. The pressure exerted by a man on the floor of the lift is zero.
TRUE
FALSE
✅ The correct answer is option A.
210. If a pendulum is taken 1 km below the earth surface in a mine, it will __________ in time.
gain
loose
✅ The correct answer is option A.