A. 36°
B. 45°
C. 56°
D. 76°
✅ The correct answer is option D.
Applied Mechanics and Graphic Statics MCQs
The force polygon representing a set of forces in equilibrium is a_____________________?
A. triangle
B. open polygon
C. closed polygon
D. parallelogram
✅ The correct answer is option C.
A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is______________________?
A. 3/4
B. 4/5
C. 5/3
D. 3/5
✅ The correct answer is option D.
A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in________________?
A. 5 sec
B. 8 sec
C. 10 sec
D. 20 sec
✅ The correct answer is option C.
A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?
A. (1/3) g sin0
B. (2/5) g sin 0
C. (3/7) g sin 0
D. (5/7) g sin0
✅ The correct answer is option D.
A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?
A. 60 N
B. 80 N
C. 100 N
D. 120 N
✅ The correct answer is option D.
Time period and length of a seconds pendulum respectively are_________________?
A. 1 sec and 99.4 cm
B. 1 sec and 92.7 cm
C. 2 sec and 99.4 cm
D. 2 sec and 92.7 cm
✅ The correct answer is option C.
One Newton is equivalent to________________?
A. 1 kg-wt
B. 9.81 kg-wt
C. 981 dyne
D. 1/9.81 kg-wt
✅ The correct answer is option D.
The bending moment in an arch is proportional to___________________?
A. vertical ordinate of funicular polygon
B. vertical ordinate of the arch
C. intercept between the arch axis and the funicular polygon
D. none of these
✅ The correct answer is option C.