Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the particle present in the nucleus of an atom?

A. proton and electron
B. neutrons and electrons
C. protons and neutrons
D. protons, neutrons and electrons
Answer» D. protons, neutrons and electrons
2.

1 MWh is equal to?

A. 6x10³ joules
B. 6x10⁴ joules
C. 6x10⁷ joules
D. 6x10⁹ joules
Answer» E.
3.

What is the mass of an electron in MeV?

A. 1 . 02 MeV
B. 1 . 02 MeV ©
C. 51 MeV
D. 102 MeV
Answer» C. 51 MeV
4.

What is the value of 1 kcal of heat?

A. 2 joules
B. 2x10⁴ joules
C. 2x10³ joules
D. 2x10⁵ joules
Answer» D. 2x10⁵ joules
5.

1 joule is equal to?

A. 10³ ergs
B. 10⁵ ergs
C. 10⁷ ergs
D. 10¹¹ ergs
Answer» D. 10¹¹ ergs
6.

in one horse power?

A. 200 w
B. 500 w
C. 700 w
D. 746 w
Answer» E.
7.

What is the distance in a light year?

A. 3x10⁸ km
B. 9. 46x10¹⁰ km
C. 9. 46x10¹² km
D. 9. 46x10¹⁵ km
Answer» D. 9. 46x10¹⁵ km
8.

1 feather is equal to?

A. 1 . 61km
B. 1 . 65 km
C. 1 . 80km
D. 1 . 85km
Answer» D. 1 . 85km
9.

What happens in a nano second?

A. 10⁻⁶s
B. 10⁻12S
C. 10⁻³S
D. 10⁻⁹S
Answer» E.
10.

How does platinum perform in the hydrogenation of oils?

A. of enzymes
B. degenerative
C. of catalyst
D. all of the above
Answer» D. all of the above
11.

What is one micron equal to?

A. 100 mm
B. 1000 mm
C. 0 . 01 mm
D. 0 . 001 mm
Answer» E.
12.

1 mile equals?

A. 1 . 61km
B. 1 . 65km
C. 1 . 75km
D. 1 . 80km
Answer» B. 1 . 65km
13.

One nanometer is equal to?

A. 10⁻⁹cm
B. 10⁻⁷cm
C. 10⁹cm
D. 10⁻⁶cm
Answer» C. 10⁹cm
14.

What does 1 kilometer distance mean?

A. 100m
B. 1000 cm
C. 1000m
D. 100 cm
Answer» D. 100 cm
15.

1 nautical mile equals?

A. 1 . 61 km
B. 1 . 80 km
C. 1 . 85 km
D. 2 . 58 km
Answer» D. 2 . 58 km
16.

One picogram is equal to?

A. 10⁻⁶g
B. 10⁻⁹g
C. 10⁻¹²g
D. 10⁻¹⁵g
Answer» D. 10⁻¹⁵g
17.

Energy change in dynamo?

A. from mechanical energy to electrical energy
B. from heat energy to electrical energy
C. from potential energy to kinetic energy
D. none of the above
Answer» B. from heat energy to electrical energy
18.

How many liters is the volume of 1 gram molecule of a gas at normal temperature and pressure?

A. 11 . 2
B. 22 . 4
C. 42 . 4
D. 224
Answer» C. 42 . 4
19.

A light year is closest to which of these?

A. 10⁸m
B. 10¹²m
C. 10¹⁵m
D. 10¹⁸m
Answer» D. 10¹⁸m
20.

A barrel of oil is approximately equal to what?

A. 131 liters
B. 159 liters
C. 257 liters
D. 321 liters
Answer» C. 257 liters
21.

What is the weight of one kilogram amount?

A. 1 newton
B. 10 newton
C. 9.8 Newton
D. 9 newton
Answer» D. 9 newton
22.

What is a carburetor used for?

A. supplying petrol to the engine
B. mixing air with petrol
C. purifying petrol
D. purify the air
Answer» C. purifying petrol
23.

Rectifier is used?

A. to convert high voltage to high voltage
B. to convert low voltage to high voltage
C. To convert DC to AC
D. To convert AC to DC
Answer» E.
24.

1 astronomical unit average is equal to?

A. distance between earth and sun
B. distance between earth and moon
C. Jupiter and the Sun's distance
D. distance of venus and sun
Answer» B. distance between earth and moon
25.

equals once?

A. 10⁻⁵Pa
B. 10⁷Pa
C. 10⁵Pa
D. 10⁴Pa
Answer» D. 10⁴Pa
26.

Cyclotron is one such device, which . . .

A. Provides energy to charged particles.
B. Measures the speed of vehicles.
C. Takes a two dimensional picture.
D. Determines the amount of water vapor.
Answer» B. Measures the speed of vehicles.
27.

What is the value of Planck's constant?

A. 6. 66X10⁻¹¹ joule second
B. 6. 63X10⁻³⁴ joule second
C. 6. 02X10⁻²⁷ joule second
D. 6. 67X10⁻³¹ joule second
Answer» C. 6. 02X10⁻²⁷ joule second
28.

Whose oxide is heavy water?

A. of germanium
B. deuterium
C. of mercury
D. of uranium
Answer» C. of mercury
29.

Which of the following device converts alternating current into vector current?

A. transformer
B. Rectifier
C. alternator
D. Condenser
Answer» C. alternator
30.

Radar is used?

A. detecting objects by light waves
B. detecting objects by reflecting sound waves
C. To find the position of objects by radio waves
D. chasing rain clouds
Answer» D. chasing rain clouds
31.

When we touch the leaves of the Mimosa plant, the leaves close, what is this motion called?

A. photosensitive speed
B. sniper speed
C. vibratory speed
D. chemistry reductive speed
Answer» D. chemistry reductive speed
32.

What is meant by tachyon?

A. particles traveling faster than the speed of light
B. part of a molecule with a heavy nucleus
C. particles moving faster than the speed of sound in air
D. amount of lattice vibration
Answer» B. part of a molecule with a heavy nucleus
33.

Is ampicillin a medicine?

A. anticancer
B. Antibiotics
C. Sleepy
D. Painkillers
Answer» C. Sleepy
34.

What is the chemical name of heroin?

A. morphine diacetate
B. Morphine Mono Acetate
C. morphine dibenzoate
D. Morphine Monobenzoate
Answer» B. Morphine Mono Acetate
35.

What is the beak made of?

A. Cheek
B. jaw
C. Teeth
D. No one
Answer» C. Teeth
36.

Which metal is present in hemoglobin?

A. magnesium
B. Iron
C. calcium
D. cobalt
Answer» C. calcium
37.

Who had the concept of tissue culture?

A. half meter
B. Hunstein
C. haber landt
D. hanning
Answer» D. hanning
38.

Which one of the following is not a physical change?

A. dissolution of water in salt
B. the formation of water vapor at the boiling point of water
C. Water formation at the melting point of ice
D. combustion of liquefied petroleum gas
Answer» E.
39.

Calamine is an ore of which metal?

A. Such as
B. Iron
C. copper
D. Gold
Answer» B. Iron
40.

Which of the following is an artificial sugar?

A. novestral
B. aspartame
C. terpinol
D. chloroxynol
Answer» C. terpinol
41.

On what principle does pressure cooker work?

A. raising the boiling point of water by the application of pressure
B. further softening of grain by application of pressure
C. further softening of grains by application of pressure and heat
D. steaming grain
Answer» B. further softening of grain by application of pressure
42.

Bleaching powder is a compound, its formula is?

A. CaClO₂
B. CaClO
C. CaOCl₂
D. CaCl₂
Answer» D. CaCl₂
43.

When the sugar rises from the yeast chamber, the gas is released?

A. oxygen
B. carbon dioxide
C. hydrogen
D. carbon monoxide
Answer» C. hydrogen
44.

What is used for non stick surfaces in utensils?

A. Terylene
B. decran
C. teflon
D. Freon
Answer» D. Freon
45.

Why do leaves look green?

A. reflect all characters
B. Reflection of green color and absorption of remaining colors
C. leaves have no effect on light
D. Absorption of green foliage only
Answer» C. leaves have no effect on light
46.

Why does ice float in water?

A. ice is filled with air
B. ice is less dense than water
C. water is deeper than ice
D. ice is more dense than water
Answer» C. water is deeper than ice
47.

What organic acid is present in vinegar?

A. methonic acid
B. ethonic acid
C. oxalic acid
D. basic acid
Answer» C. oxalic acid
48.

A liquid containing soluble impurities is purified by?

A. filtering
B. by cooling
C. by depositing
D. by boiling
Answer» E.
49.

Which non-metal is a conductor of electric current?

A. graphite
B. hydrogen
C. oxygen
D. Sulphur
Answer» B. hydrogen
50.

The reason for being Bodri?

A. from microbes
B. from fungus
C. toxically
D. from algae
Answer» D. from algae