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General Knowledge
:
EveryDay Science
:
Self Assessment Test
Units And Measurement
QNo.
1
Inch = ______ Centimeter
A
3
B
2.54
C
2.7
D
2.67
QNo.
2
What is the unit for measuring the amplitude of a sound?
A
Decibel
B
Coulomb
C
Hum
D
Cycles
QNo.
3
One nanometer is equal to
A
10⁻⁶ m
B
10⁻⁸ m
C
10⁻⁹ m
D
10-⁻⁵ m
QNo.
4
One fathom is equal to
A
6 feet
B
6 meters
C
60 feet
D
100 cm
QNo.
5
Light year is a measurement of
A
Speed of aeroplanes
B
Speed of light
C
Stellar distances
D
Speed of rockets
QNo.
6
One kilometre is equal to how many miles?
A
0.84
B
0.5
C
1.6
D
0.62
QNo.
7
'Bar' is the unit of
A
Temperature
B
Heat
C
Atmospheric pressure
D
Current
QNo.
8
Nautical mile is a unit of distance used in
A
Navigation
B
Road mile
C
Astronomy
D
Measuring the boundaries of a nation
QNo.
9
How many Dynes are there in 1 gram weight?
A
900
B
375
C
981
D
250
QNo.
10
Joule is the unit of
A
Temperature
B
Pressure
C
Energy
D
Heat
QNo.
11
How many Ergs are there in 1 joule?
A
10²
B
10⁴
C
10⁶
D
10⁷
QNo.
12
Very small time intervals are accurately measure by
A
White dwarfs
B
Quartz clocks
C
Atomic clocks
D
Pulsars
QNo.
13
Electric current is measure by
A
Commutator
B
Anemometer
C
Ammeter
D
Voltmeter
QNo.
14
One horse power is equal to
A
746 watts
B
748 watts
C
756 watts
D
736 watts
QNo.
15
Kilowatt is a unit to measure
A
Work
B
Power
C
Electricity
D
Current
QNo.
16
Kilohertz is a unit which measures
A
Power used by a current of one ampere
B
Electromagnetic radio wave frequencies
C
Voltage
D
Electric resistance
QNo.
17
One Joule is equal toFathom is the unit of
A
Sound
B
Depth
C
Frequency
D
Distance
QNo.
18
Reading of a barometer going down is an indication of
A
Snow
B
Storm
C
Intense heat
D
Rainfal
QNo.
19
A chronometer measures
A
Colour contrast
B
Sound waves
C
Time
D
Water waves
QNo.
20
Knot is a unit of speed of which of the following?
A
Aeroplane
B
Light waves
C
Ship
D
Sound waves
QNo.
21
The unit of current is
A
Ohm
B
Watt
C
Ampere
D
None of the above
QNo.
22
The unit of energy in MKS system is
A
Volt
B
Erg
C
Ohm
D
Joule
QNo.
23
The instrument used to measure electric current is
A
Ammeter
B
Electrometer
C
Galvanometer
D
Spectrometer
QNo.
24
Name the instrument used to measure relative humidity
A
Hydrometer
B
Hygrometer
C
Barometer
D
Mercury Thermometer
QNo.
25
Which temperature in Celsius scale is equal to 300 K?
A
30°C
B
27°C
C
300°C
D
None of these
QNo.
26
Richter scale is used for measuring
A
Density of liquid
B
Intensity of earthquakes
C
Velocity of wind
D
Humidity of air
QNo.
27
The instrument used in IC Engine to charge air with fuel vapour is:
A
Carburettor
B
Dynamometer
C
Fuel Pump
D
Fuel Injector
QNo.
28
The instrument used in aircrafts to measure the altitude above a fixed level is:
A
Ammeter
B
Audiometer
C
Anemometer
D
Altimeter
QNo.
29
Hygrometer is used to measure
A
Relative humidity
B
Purity of milk
C
Specific gravity of liquid
D
None of the above
QNo.
30
Which of the following instruments is used for recording “Earthquake waves”?
A
Barograph
B
Hydrograph
C
Pantograph
D
Seismograph
QNo.
31
Which of the following is not a unit of time? Pg.95
A
Light year
B
Nano second
C
Micro second
D
Second
QNo.
32
Light Year is related to
A
Energy
B
Speed
C
Distance
D
Intensity
QNo.
33
The energy of food is measured in
A
Kelvin
B
Calories
C
Bushel
D
None of the above
QNo.
34
The SI unit of __________ is named after Andre Marie Ampere.
A
Power
B
Potential difference
C
Electric current
D
Energy
QNo.
35
What is the S.I. unit of temperature?
A
Kelvin
B
Celsius
C
Centigrade
D
Fahrenheit
QNo.
36
The telescope is used for viewing
A
Distant objects
B
Near objects
C
Small objects
D
Living cells
QNo.
37
Velocity of wind is measured by
A
Speedometer
B
Tachometer
C
Anemometer
D
Audiometer
QNo.
38
Telescope is used to
A
Distant objects in space
B
Distant objects in water
C
To view tiny Objects
D
None of these
QNo.
39
Lux is the SI unit of
A
Intensity of illumination
B
Luminous efficiency
C
Luminous flux
D
Luminous intensity
QNo.
40
Moment of inertia is
A
Vector
B
Scalar
C
Phasor
D
Tensor
QNo.
41
One thousand microns is equal to
A
10⁻³ m
B
10⁻⁶ m
C
10⁻⁹ m
D
10⁻¹² m
QNo.
42
1 Kilogram = _____ Pound
A
2
B
2.5
C
2.2
D
3.5
QNo.
43
Pa (Pascal) is the unit for
A
Thrust
B
Pressure
C
Frequency
D
Conductivity
QNo.
44
One watt-hour is equivalent to
A
6.3 × 10³ J
B
6.3 × 10⁻⁷ J
C
3.6 × 10³ J
D
3.6 × 10⁻³ J
QNo.
45
A transformer is used to
A
Increase DC voltage
B
Increase or decrease AC voltage
C
Decrease DC voltage
D
Convert DC into AC
QNo.
46
Device used to rectify farsightedness is
A
Concave lens
B
Convex lens
C
Spherical lens
D
Plane glass
QNo.
47
At what temperature do both the Centigrade and the Fahrenheit thermometers show the same reading?
A
-20°
B
-40°
C
42°
D
0°