# The unit of force in S.I. units is

1.  kilogram

2.  newton

3.  watt

4.  dyne

4

newton

Explanation :
No Explanation available for this question

# The unit of work or energy in S.I. units is

1.  newton

2.  pascal

3.  kilogram meter

4.  joule

4

joule

Explanation :
No Explanation available for this question

# The unit of power in S.I. units is

1.  newton meter

2.  watt

3.  joule

4.  kilogram meter/sec

4

watt

Explanation :
No Explanation available for this question

# Forces are called concurrent when their lines of action meet in

1.  one point

2.  two points

3.  plane

4.  perpendicular planes

4

one point

Explanation :
No Explanation available for this question

# Forces are called coplanar when all of them acting on body lie in

1.  one point

2.  one plane

3.  different planes

4.  perpendicular planes

4

one plane

Explanation :
No Explanation available for this question

# A force acting on a body may

1.  introduce internal stresses

2.  balance the other forces acting on it

3.  retard its motion

4.   all of the above

4

all of the above

Explanation :
No Explanation available for this question

# Which is the correct statement about law of polygon of forces

1.  if any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium

2.  if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium

3.  if a polygon representing forces acting at a point is closed then forces are in equilibrium

4.  if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

4

if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

Explanation :
No Explanation available for this question

# Effect of a force on a body depends upon

1.  magnitude

2.  direction

3.  position or line of action

4.  all of the above

4

all of the above

Explanation :
No Explanation available for this question

# If a number of forces act simultaneously on a particle, it is possible

1.  not a replace them by a single force

2.  to replace them by a single force

3.  to replace them by a single force through C.G.

4.  to replace them by a couple

4

to replace them by a single force

Explanation :
No Explanation available for this question

# Choose the wrong statement

1.  Viscosity of a fluid is that property which determines the amount of its resistance to a shearing force

2.  Viscosity is due primarily to interaction between fluid molecules

3.  Viscosity of liquids decreases with in-crease in temperature

4.  Viscosity of liquids is appreciably affected by change in pressure

4