MCQ: 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
5. to replace them by a couple and a force

MCQ: The unit of work or energy in S.I. units is________________?

1. newton
2. pascal
3. kilogram meter
4. watt
5. joule

MCQ: Which of the following is not the unit of pressure ?

1. kg/cm
2. ata
3. atmosphere
4. mm of wcl
5. newton

MCQ: The forces, which meet at one point, but their lines of action do not lie in a plane, are called______________?

1. coplanar non-concurrent forces
2. non-coplanar concurrent forces
3. non-coplanar non-concurrent forces
4. intersecting forces
5. none of the above

MCQ: Which of the following is not a scalar quantity__________________?

1. time
2. mass
3. volume
4. density
5. acceleration

MCQ: The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are____________________?

1. 2 and V6
2. 3 and 1 kg
3. V5andV5
4. 2 and 5
5. none of the above