1. The working principle of atom bomb is nuclear fission of uranium and the working principle of hydrogen bomb is:
nuclear fusion of deuterium.
nuclear fission of thorium.
explosion of bomb involving hydrogen gas.
explosion involving dynamite and T.N.T.
2. Pencil lead is:
graphite
charcoal
lamp black
coal
3. The working principle of atom bomb is nuclear fission of uranium and the working principle of hydrogen bomb is:
nuclear fusion of deuterium.
nuclear fission of thorium.
explosion of bomb involving hydrogen gas.
explosion involving dynamite and T.N.T.
4. In a diesel engine the fuel used is:
vapor of diesel and air
diesel only
mixture of diesel and petrol
mixture of diesel, air and petrol
5. Which of the following is an element?
Sand
Diamond
Marble
Sugar
6. Tetraethyl lead (TEL) is added to petrol:
To prevent its freezing
To increase its flash point
To increase anti-knocking rating
To increase its boiling point
7. Which one of the following statements is correct?
DDT is antibacterial compound
TNT is an insecticide
RDX is an explosive
LSD is an antiviral compound
8. The gas used in artificial ripening of green fruit is?
Acetylene
Ethane
Hydrogen
Carbon Dioxide
9. Milk is an example of
A gel
An emulsion
A suspension
A foam
10. Which one of the following is used in food preservation?
Sodium Carbonate
Acetylene
Benzoic Acid
Sodium Chloride
11. Which one of the following fertilizers leaves maximum acidity in the soil?
Urea
Ammonium Sulphate
Ammonium Nitrate
Calcium Ammonium Nitrate
12. Which one of the following is the hardest metal?
Gold
Iron
Platinum
Tungsten
13. The nucleus of an atom consist of
Electrons and Neutrons
Electrons and Protons
Protons and Neutrons
Protons and Radons
14. Solder used in soldering metal pieces consist of an alloy of
Tin and Zinc
Tin and Lead
Zinc and Lead
Zinc and Copper
15. Which of the following metals pollute the air of a city, having a very large number of automobiles:
Cadmium
Chromium
Lead
Copper
16. Bauxite is an ore of:
Lead
Aluminium
Zinc
Copper
17. Match List–I with List–II and select the correct answer from the codes given below: List–I List–II (Acid) (Source) A. Lactic acid 1. Lemon B. Acetic acid 2. Rancid butter C. Citric acid 3. Milk D. Butyric acid 4. Vinegar Codes: A B C D
1 4 3 2
3 1 4 2
2 3 4 1
3 4 1 2
18. The important metal used with iron to produce stainless steel is:
aluminium
chromium
tin
carbon
19. Assertion (A): Detergents easily remove oil and dirt from soiled garments. Reason (R): Detergents increase the surface tension of water.
Both A and R are true R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
20. Match List–I with List–II and select the correct answer from the codes given below: List–I List–II A. Dry Ice 1. Treatment of Cancer B. Gene therapy 2. Freezing living bodies to be revived later C. Cryonics 3. Solid carbon dioxide D. Cobalt-60 4. Treatment of blood diseases. Codes: A B C D
1 2 3 4
4 3 2 1
3 4 2 1
2 1 4 3
12 Total Test
360 Total Question
Scientifically designed for PCS
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IAS PCS SCC and others
75 Total Test
2250 Total Question
Scientifically designed for PCS
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IAS PCS SCC and others
69 Total Test
2070 Total Question
Scientifically designed for PCS
A must have for Civil services aspirant
Timer for time management
