A. unpredictable

B. full equilibrium

C. partial equilibrium

D. none of the above

A. positive and negative couples can be balanced

B. if a system of coplanar forces is in equilibrium, then their algebraic sum is zero

D. none of the above

E. the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point

A. k up wrong statement?

B. proportional to normal load between the surfaces

C. none of the above is wrong statement

D. independent of the area of contact surfaces

E. dependent on the materials of contact surface

A. none of the above

B. mechanical advantage is unity

D. mechanical advantage is greater than velocity ratio

E. mechanical advantage is less than velocity ratio

A. watt

B. dyne

D. joule

E. kilogram

A. coplanar

B. meet at one point ;

D. all be equal

E. something else

A. pascal

B. kilogram meter

C. newton

D. watt

A. their total sum is zero

B. two resolved parts in two directions at right angles are equal

D. all of them are inclined equally

E. none of the above

A. maximum when it acts at the center of gravity of a body

B. minimum when it acts at the C.G. of the body

D. different at different points in its line of action

E. none of the above

A. parabola

C. circle

D. ellipse

E. none of the above

A. resulting couple

B. none of the above

D. moment of the forces

E. resultant couple

A. kg m2

B. kg/m4

C. kg/m2

E. m3

A. 500

C. 250

D. 25

E. 100

A. determining stresses in the truss

C. designing safe structures

D. stability of floating bodies

E. solving kinematic problems

A. angle between normal reaction and the resultant of normal reaction and the limiting friction

B. tangent of angle of repose

C. the friction force acting when the body is in motion

E. the friction force acting when the body is just about to move

A. perpendicular planes

C. different planes

D. plane

E. two points

A. three forces acting at a point can be represented by a triangle, each side being proportional to force

B. none of the above

C. if three forces acting upon a particle are represented in magnitude and

E. three forces acting at a point will be in equilibrium

F. ection by the sides of a triangle, taken in order, they will be in equilibrium

A. r/2

B. 2r/3

D. 3r/A

E. r/A

B. energy

C. angle

D. mass

E. speed

A. Wcos(a + )

B. Wsin(a + )

C. Wtan(a-)

E. W (sin a + cos ).

A. none of the above

B. the center of heavy portion

C. the bottom surface

E. all of the above

A. point of application

C. direction

D. none of the above

E. magnitude

A. Torque and work

B. Torque and energy

C. Momentum and impulse

E. Kinetic energy and potential energy

A. slant up towards direction of pull

C. none of the above

D. unpredictable

E. remain horizontal

A. 6f-4

B. 3t2-lt

D. 6t2-8t

E. 3t2+2t

A. joule

B. pascal per sec

C. newton meter

E. kilogram meter/sec

A. one point

B. different points

C. perpendicular planes

D. different planes

A. 124 m

B. 96 m

C. 38 m

D. 240 m

A. W

C. W\an(a-)

D. W sin (a + $)

E. Wtana

A. one fourth

B. same

D. half

E. four times

A. kinetic friction

B. limiting friction

C. friction force

E. angle of repose

A. h/6

B. J/3

D. 3/i/5

E. h/2

A. A. and B. above

C. ail of the above.

D. shape of the surfaces

E. area of contact

B. two dry surfaces

C. electrically charged particles

D. solids and liquids

E. two lubricated surfaces

A. kcal

B. kg m

D. watt hours

E. kg m x (m/sec)2

A. are equivalent

B. balance each other

C. none of the above

D. produce moment of a couple

A. none of the above

B. one-half of the total height above base

C. one-fourth of the total height above base

D. three-eighth of the total height above the base

A. hyperbola

B. catenary

D. circular arc

E. elliptical

A. ratio of limiting friction and normal reaction

B. tangent of angle between normal-reaction and the resultant of normal reaction and limiting friction

D. the friction force acting when the body is in motion

E. minimum force of friction

A. zeioth order

C. fourth order

D. third order

E. first order

A. kcal/sec

C. hp (horse power)

D. kW (kilowatt)

E. kg m/sec

A. upwards at its upper end

B. none of the above

C. perpendicular to the wall at its upper end

E. downwards at its upper end

B. none of the above

C. metal is twice as dense as water

D. metal will float in water

E. metal is twice as dense as unknown fluid

A. balance the other forces acting on it

B. retard its motion

C. change its motion

E. introduce internal stresses

A. rectangle

B. circle

C. square

D. equilateral triangle

A. 2/ -4

B. 3/-2

D. 2j-l

E. j-2

A. friction

B. limiting friction

C. static friction

D. kinematic friction

A. forces experienced by body in atmosphere

C. centripetal force of earth

D. gravitational pull exerted by the earth

E. force of attraction experienced by particles

A. these forces are equal

C. none of the above

D. the lines of action of these forces meet in a point

E. the lines of action of these forces are parallel

B. mechanical advantage is unity

C. none of the above

D. mechanical advantage is greater than velocity ratio

E. mechanical advantage is equal to velocity ratio