Question Paper CDS Engineering

Q1. Which one among the following compounds has same equivalent weight and molecular weight?

1. H 2 SO 4
2. CaCl 2
3. Na 2 SO 4
4. NaCl

Q2. Which one among the following statements is not true for Mammals?

1. They possess hair on the body
2. Some of them lay eggs
3. Their heart is three chambered
4. Some are aquatic

Q4. A metallic plate sticks firmly on the mouth of a water vessel made from another metal. By way of heating, one can detach the plate from the vessel. This is because heat expands

1. the vessel only
2. both the vessel and the plate equally
3. the vessel more than the plate
4. the vessel and contracts the plate

Q5. Electricity is produced through dry cell from

1. chemical energy
2. thermal energy
3. mechanical energy
4. nuclear energy

Q6. In human digestive system, the process of digestion starts in

1. Oesophagus
2. Buccal cavity
3. Duodenum
4. Stomach

Q7. Which one among the following fuels is used in gas welding?

1. LPG
2. Ethylene
3. Methane
4. Acetylene

Q8. In respect of the difference of the gravitational force from electric and magnetic forces, which one of the following statements is true?

1. Gravitational force is stronger than the other two
2. Gravitational force is attractive only, whereas the electric and the magnetic forces are attractive as well as repulsive.
3. Gravitational force has a very short range
4. Gravitational force is a long range force, while the other two are short range forces

Q9. Which one among the following is a micronutrient present in soil for various crops?

1. Calcium
2. Manganese
3. Magnesium
4. Potassium