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Home » Past Papers » Aptitude Test - 23
Hassan
1.Bats can also fly in dark because they are capable of taking the help of :
A. Ultraviolet Waves
B. Ultrasonic Waves
C. Electromagnetic Waves
D. Ultraviolet Waves
2. What is ‘Stealth Technology’?
A. A device which when attached to an aircraft makes it invisible on the radar
B. A coating which reduces the visibility of an aircraft on a radar
C. A technology by which it is possible for the aircraft to spy in the enemy air space
D. A device which when attached to an aircraft makes it invisible on the radar
3.The primary function of the feathers in birds is to :
A. Provide insulation for preserving body heat
B. Provide striking surface to the wings for flying
C. Make the surface body waterproof
D. Provide insulation for preserving body heat
4.The rear view mirror of a motor vehicle is :
A. Concave
B. Plane
C. Convex
D. Concave
5. Lead ball falls through water more slowly than through air because :
A. The value of ‘g’ is less than water
B. Density of air is less than that of water
C. Of the viscous force in water
D. The value of ‘g’ is less than water
6.A Fahrenheit thermometer indicates temperature of 14°F. Its corresponding reading on the Celsius scale will be:
A. -20C
B. -10C
C. +10C
D. -20C
7.Which one of the following sets of colour combinations is added in colour vision in TV?
A. Red, green and blue
B. Orange, black and violet
C. White , red and yellow
D. Red, green and blue
8.A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to :
A. Remain unaffected
B. Fall away from the train
C. Fall toward the train
D. Remain unaffected
9.Water is a highly effective coolant for a car engine because :
A. Water is good conductor of heat
B. Water has very high specific heat capacity
C. Evaporation of water produces lot of cooling
D. Water is good conductor of heat
10.In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as :
A. Electroplating
B. Annealing
C. Galvanization
D. Electroplating
11.Materials for rain-proof coats and tents owe their water proof properties to:
A. Surface tension
B. Viscosity
C. Specific gravity
D. Surface tension
12.Water has maximum density at:
A. 0 C
B. 4 C
C. 4.8 C
D. 0 C
13.The theory of Expanding Universe was first propounded by :
A. Einstein
B. Newton
C. Gahleo
D. Einstein
14.Water vapor beyond the dew point result in:
A. Hailstorm
B. Precipitation
C. Condensation
D. Hailstorm
15.The main chemical substance present in the bones and teeth of animals is:
A. Sodium chloride
B. Sugar
C. Calcium Phosphate
D. Sodium chloride
16.The major component of honey is :
A. Glucose
B. Sucrose
C. Maltose
D. Glucose
17.Radioactivity was first discovered by:
A. Pasteur
B. Newton
C. Henry Becquerel
D. Pasteur
18.Which gas is commonly used in balloons and airships?
A. Hydrogen
B. Helium
C. Carbon
D. Hydrogen
19.A slow-running pendulum clock can be speeded up b:
A. Increasing the length of rod
B. Increasing the weight of the bob
C. Reducing the length of the rod
D. Increasing the length of rod
20.A man is standing on a weighing machine in a lift which is moving. The weighing machine will show MINIMUM reading when, the lift is moving:
A. Upward with Uniform speed
B. Downward with the Uniform speed
C. In a free fall due to failure of the lift mechanism
D. Upward with Uniform speed
21.The approximate intensity level of the sound which can cause damage to the ear drum is:
A. 20dB
B. 60dB
C. 100dB
D. 20dB
22.Fuse wire is made of:
A. 63% tin and 37% lead
B. 63% lead and 37% tin
C. 63% tin and 37% aluminum
D. 63% tin and 37% lead
23.Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?
A. Carbon dioxide
B. Chlorofluorocarbon
C. Methane
D. Carbon dioxide
24.The property by virtue of which metals can be beaten into thin sheets is known as:
A. Ductility
B. Conductivity
C. Malleability
D. Ductility
25.The sky appears blue because the earth’s atmosphere:
A. Scatters blue light
B. Reflects blue light
C. Transmitted blue light
D. Scatters blue light
26.A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to:
A. Prop him up if he falls
B. Spread out his weight and reduce the pressure on the rope
C. To keep the center of gravity always vertically above the rope
D. Prop him up if he falls
27.Heating element of an electric heater is made up of:
A. Tungsten
B. Graphite
C. Nichrome
D. Tungsten
28.In an oil lamp, the oil rises up in the wick due to:
A. Capillary action
B. Atmospheric pressure
C. Viscosity of Oil
D. Capillary action
29.Acid rain contains high levels of:
A. Oxalic Acid
B. Acetic Acid
C. Sulphuric and nitric acid
D. Oxalic Acid
30.Which one of the following would give the highest energy per gram?
A. Glucose
B. Proteins
C. Fats
D. Glucose
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