Top 350+ Solved Applied Mechanics MCQ Questions Answer
Q. A compressure force in boom in above problem is
a. 107 dynes
b. 1096 kg
c. 886 kg
d. 693 kg
e. 1390 kg
Q. A body having SHM has period of 6 sec and amplitude of 4 mts. Maximum velocity is
a. ?/3 m/s
b. 2?/3 m/s
c. 107 dynes
d. 3? m/s
e. 4?/3 m/s
Q. What is the maximum force, in Newtons, that will not cause tension?
a. 294
b. 316
c. 346
d. 184
e. 107 dynes
Q. Centroid of the are of circle shown in adjacement figure is
a. r sin (?/2)/2 ?, 0
b. r sin (?)/?, 0
c. 2 r sin (?/2)/?, 0
d. 107 dynes
e. 2r sin (?)/?, 0
Q. The centroid of the area between the circle x2 + y2 = 16 and the line x + y = 4 will have the coordinates
a. (4, 2)
b. (2, 4)
c. (2.34, 2.34)
d. (1.16, 1.16)
e. None of the above
Q. Polar moment of inertia is
a. Applicable to masses whereas moment of inertia is applicable to area only
b. The moment of inertia for an area ralative to a line or axis which is out the plane of area
c. Same as moment of inertia
d. The moment of inertia for an area relative to a line or axis parallel to the centroidal axis
e. The moment of inertia for an area relative to a line or axis perpendicular to the plane of the area
Q. A bullet is fired vertically upwards with a velocity of 2200 ft/s. Bullet ascends to a height of
a. 56,900 ft
b. 107 dynes
c. 75,000 ft
d. 48.300 ft
e. 65,800 ft
Q. In the impact problems the following conditions must always be satisfied
a. The total kinetic energy remains unchanged
b. The total linear momentum remains unchanged
c. The magnitude of the total linear momentum is multiplied by the coefficient of restitution
d. The kinetic energy of the system is reduced by a factor proportional to the coefficient of restitution
e. None of the above
Q. A hammer gains 50 Ns momentum in 0.05 sec. The average force on the hammer will be
a. 500 N
b. 2000 N
c. 1500 N
d. 107 dynes
e. 1000 N
Q. If the distance to electric train is given by Fr = a + bv + cv2 In this equation constant c is likely to cover
a. air resistance
b. track resistance
c. frictional resistance
d. flange resistance
e. 107 dynes
Q. A man is standing near the edge of a uniformly rotating platform about an axis passing through its centre. The speed of rotation of the platform will decrease if he
a. extends his arms outwards
b. moves towards the axis of rotation
c. jumps out from the platform
d. accepts a heavy bag from one of his friends standing near by and holds it in his hand
e. 107 dynes
Q. A stone weighing 20 N is whirling in a vertical circle at the extremity of a string 100 cm long. The tension in the string will be zero
a. at the highest position
b. at the lowest position
c. at the midway position
d. at none of the above
e. 107 dynes
Q. 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
Q. According to principle of transmissiblity of forces, when a force acts upon a body, its effect is
a. maximum when it acts at C.G. of the body
b. minimum when it acts at C.G. of the body
c. different at different points of the body
d. 107 dynes
e. same at every point in its line of action