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Engineering Mechanics

Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction___________________?

Engineering Mechanics /
Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction___________________?

A. along the plane
B. horizontally
C. vertically
D. at an angle equal to the angle of friction to the inclined plane
E. unpredictable

Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction___________________? Read More »

Engineering Mechanics

In the equation of virtual work, following force is neglected_______________________?

Engineering Mechanics /
In the equation of virtual work, following force is neglected_______________________?

A. reaction of any smooth surface with which the body is in contact
B. reaction of a rough surface of a body which rolls on it without slipg
C. reaction at a point or an axis, fixed in space, around which a body is con-strained to turn
D. all of the above
E. none of the above

In the equation of virtual work, following force is neglected_______________________? Read More »

Engineering Mechanics

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span___________________?

Engineering Mechanics /
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span___________________?

A. 2.5 cm
B. 3.0 cm
C. 4.0 cm
D. 5.0 cm
E. 2.0 cm

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span___________________? Read More »

Engineering Mechanics

From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate____________________?

Engineering Mechanics /
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate____________________?

A. 0.5 cm
B. 1.0 cm
C. 1.5 cm
D. 2.5 cm
E. 0.25 cm

From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate____________________? Read More »

Engineering Mechanics

A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve ____________________?

Engineering Mechanics /
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve ____________________?

A. catenary
B. parabola
C. hyperbola
D. elliptical
E. circular arc

A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve ____________________? Read More »

Engineering Mechanics

Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?

Engineering Mechanics /
Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?

A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above

Center of gravity of a thin hollow cone lies on the axis at a height of ___________________? Read More »

Engineering Mechanics

Center of gravity of a solid cone lies on the axis at the height _____________________?

Engineering Mechanics /
Center of gravity of a solid cone lies on the axis at the height _____________________?

A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above

Center of gravity of a solid cone lies on the axis at the height _____________________? Read More »

Engineering Mechanics