946.  How many bits is a byte?

a

  8

b

 32

c

 4

d

 16

Answer & Explanation
Answer : Option A
Explanation :

947.  What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?

a

  Giuseppe Mercalli

b

 Charles Richter

c

 Hiram Walker

d

 Joshua Rumble

Answer & Explanation
Answer : Option B
Explanation :

948.  Voltage is sometimes referred to as EMF, or Electromotive?

a

  Flash

b

 Factor

c

 Force

d

 Field

Answer & Explanation
Answer : Option C
Explanation :

949.  What Enrico Fermi invented?

a

  Cyclotron

b

 X-ray machine

c

 Nuclear reactor

d

 Betatron

Answer & Explanation
Answer : Option C
Explanation :

950.  On a stationary sail boat, air is blown from a fan attached to the boat. The boat

a

  Moves in opposite direction in which the air is blown

b

 Does not move

c

 Moves in the same direction in which air blows

d

 Spins around

Answer & Explanation
Answer : Option B
Explanation :

951.  Who was the first person to patent the JET ENGINE?

a

  W. Histell

b

 F. Whittle

c

 C. Lindbergh

d

 B. Owings

Answer & Explanation
Answer : Option B
Explanation :

952.  When cream is separated from milk

a

  The density of milk increases

b

 It becomes more viscous

c

 The density of milk remains unchanged

d

 The density of milk decreases

Answer & Explanation
Answer : Option A
Explanation :

953.  Primary phloem develops from

a

  Protoderm

b

 Extrastelar cambium

c

 Lateral meristem

d

 Provascular tissue

Answer & Explanation
Answer : Option D
Explanation :

954.  Plants receive their nutrients mainly from

a

  Atmosphere

b

 Light

c

 Chlorophyll

d

 Soil

Answer & Explanation
Answer : Option D
Explanation :

955.  The length of wire having resistance of 1 ohm/m in a heater rated at 1000 W and 250 V will be

a

  500 m

b

 125 m

c

 250 m

d

 62.5 m

Answer & Explanation
Answer : Option D
Explanation :

956.  Sulphur is not present in

a

  Iron pyrites

b

 Gypsum

c

 Chlorapatite

d

 Coal

Answer & Explanation
Answer : Option C
Explanation :

957.  Which of the following rays are more penetrating?

a

  Alpha rays

b

 X-rays

c

 Gamma rays

d

 Beta rays

Answer & Explanation
Answer : Option C
Explanation :

958.  Planets do not twinkle because

a

  They emit light of a constant intensity

b

 Their distance from the earth does not change with time

c

 They are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable

d

 They are very far away from the earth resulting in decrease in intensity of light

Answer & Explanation
Answer : Option C
Explanation :

959.  Kilohertz is a unit which measures

a

  Electric resistance

b

 Voltage

c

 Power used by a current of one ampere

d

 Electromagnetic radio wave frequencies

Answer & Explanation
Answer : Option D
Explanation :

960.  Which is the future fuel?

a

  Hydrogen

b

 Natural Gas

c

 Ethanol

d

 Methane

Answer & Explanation
Answer : Option B
Explanation :



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