Search
.Management Sciences
Category: Applied Mechanics and Graphic Statics
A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are____________________?
0
A. 1346.3 kN and 1500 kN
B. 1436.2 kN and 1250 kN
C. 1346.3 kN and 1250 kN
D. 1436.2 kN and 1500 kN
For a non-concurrent force system to be in equilibrium__________________?
A. only the closure of force polygon is sufficient
B. only the closure of funicular polygon is sufficient
C. both force polygon and funicular polygon must close
D. none of the above
A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec2)______________________?
A. 15 m/sec
B. 25 m/sec
C. 40 m/sec
D. 50 m/sec
A solid cylinder of mass M and radius R rolls down an inclined plane without slipping. The acceleration of center of mass of rolling cylinder is________________?
A. (1/3) g sinB
B. (2/3) g cos 9
C. (2/3) g sin 0
D. g sin 9
where ‘g’ is acceleration due to gravity and 0 is inclination of plane with horizontal
The condilion for a lifting machine to be reversible is that its efficiency should be_________________?
A. less than 50%
B. more than 50%
C. more than 66.67%
D. equal to 100%
Recent Comments