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.

RLV-TD are a series of technology demonstration missions that have been conceived by ISRO as a first step towards realizing a Two Stage To Orbit (TSTO) fully re-usable launch vehicle. What is full form of RLV-TD?

A. Reusable Launch Vehicle-Technology Demonstration
B. Remote Launch Vehicle-Technology Demonstration
C. Return Launch Vehicle-Technology Demonstration
D. Reusable Launch Vehicle-Technology Device
Answer» B. Remote Launch Vehicle-Technology Demonstration
2.

Normal‖ rainfall is slightly acidic (and a pH of 5.6 has been assigned which might be somewhere near 5 ) because of the presence of _______?

A. Nitric Oxide
B. Sulphuric Acid
C. Nitric Acid
D. Carbonic Acid
Answer» E.
3.

Which among the following have been found to produce a protein called Defensin-1, whichhas been found potential to develop drugs for antibiotic resistant bacteria?

A. Codfish
B. Cuttle Fish
C. Honey bee
D. Domestic Fly
Answer» D. Domestic Fly
4.

Acetylene cannot be safely pressurized as a pure compound. Which among the following is used for safe storage and transportation of Acetylene?

A. Kerosene
B. Acetone
C. Vinegar (Acetic Acid)
D. Propylene glycol
Answer» C. Vinegar (Acetic Acid)
5.

Plants which are adapted to grow in soils containing high concentration of salt are known as:

A. Xerophytes
B. Mesophytes
C. Halophytes
D. Thallophytes
Answer» D. Thallophytes
6.

PVC is a polymer of ?

A. Propane
B. Vinyl chloride
C. Styrene
D. Carbonates
Answer» C. Styrene
7.

Which among the following is true about latent heat ?

A. It causes change in temperature as well as change in state or phase
B. It causes change in temperature only
C. It causes change in state or phase but not in temperature
D. It causes change in Pressure
Answer» D. It causes change in Pressure
8.

―Svedberg Unit‖ is a unit of _________?

A. Concentration
B. Size
C. Density
D. Time
Answer» E.
9.

Two Flat mirrors are placed at an angle of 60° from each other. How many images will be formed of a Candle placed in between them?

A. 3
B. 4
C. 5
D. 6
Answer» D. 6
10.

Ohm is a unit of measuring _________?

A. Resistance
B. Voltage
C. Current
D. None of the above
Answer» B. Voltage
11.

The metals in which among the following groups are required in maximum quantities in a living organism?

A. Potassium, Manganese, Molybdenum, Calcium
B. Potassium, Molybdenum, Copper, Calcium
C. Pottassium,Sodium, Magnesium, Calcium
D. Sodium, Magnesium, Copper, Manganese
Answer» D. Sodium, Magnesium, Copper, Manganese
12.

A pendulum is taken to Moon , its time period will___________?

A. Increases
B. Decreases
C. Remains constant
D. Either increase or decrease
Answer» B. Decreases
13.

Which among the following is the correct statement about Black Ice?

A. It is the product of the freezing of water droplets in highly polluted air
B. It is the thin transparent layer of ice made up usually on roads and pavement
C. It is the solid Carbon Dioxide
D. It is the frozen water of a highly polluted river
Answer» C. It is the solid Carbon Dioxide
14.

Which among the following protein is responsible for maintenance of osmotic pressure?

A. Beta macroglobulin
B. Gamma globulin
C. immunoglobulin
D. albumin
Answer» E.
15.

The correct group of animals that suffer from the ―Foot & Mouth ‖ disease is as follows:

A. Only Cattle
B. Cattle & Sheeps
C. Cattle and Pigs
D. Cattle, Sheeps and Pigs
Answer» E.
16.

Froth & Foams are examples of which of the following ?

A. solid suspended in gas
B. liquid suspended in gas
C. gas suspended in liquid
D. gas suspended in solid
Answer» D. gas suspended in solid
17.

Which among the following sentence is correct reason behind the blue color of ocean water?

A. Water molecules absorb all other colors except blue
B. Impurities in Sea water reflect the blue light
C. Water molecules scatter the blue light
D. None of the above
Answer» D. None of the above
18.

Which among the following is a main constituent of Histosols?

A. Acidic Salts
B. Organic Matter
C. Minerals
D. Clay Content
Answer» C. Minerals
19.

Which among the following is largest animal Phylum?

A. Mollusca
B. Arthropoda
C. Mammalia
D. Annelida
Answer» C. Mammalia
20.

The television technology in which a new form of light-emitting crystals which can be printed onto flexible plastic sheets to produce a paper-thin display that can be rolled up and carried in a pocket is:

A. QD-TV
B. SED-TV
C. Pixel Plus
D. Slingbox
Answer» B. SED-TV
21.

What do we call the part of the ―DTH Satellite dish‖ that converts the signals from electromagnetic or radio waves to electrical signals ?

A. Orthomode transducer (OMT)
B. Low-noise block converter (LNB)
C. Block upconverter (BUC)
D. Parabolic Dish
Answer» C. Block upconverter (BUC)
22.

Cassiterite is an ore of which of the following ?

A. Iron
B. Zinc
C. Copper
D. Tin
Answer» E.
23.

A neutron , an electron, a proton and an alpha particle are moving with the same kineticenergy. Which of the following is correct order of their speeds?

A. Alpha Particle, Neutron, Proton, Electron
B. Electron, Proton , Neutron, Alpha Particle
C. Alpha Particle, Proton, Neutron, Electron
D. Neutron, Proton, Alpha Particle, Electron
Answer» B. Electron, Proton , Neutron, Alpha Particle
24.

Which among the following can be used as a preservative in Tomato Juice?

A. Sodium Chloride
B. Sodium carbonate
C. Sodium benzoate
D. Sodium Lauril Sulphate
Answer» D. Sodium Lauril Sulphate
25.

Which among the following is incorrect regarding the chemical nature of Diamond & Graphite?

A. Density of Diamond is higher than that of Graphite
B. Diamond is chemically unreactive while graphite is mild reactive
C. Both Diamond and Graphite are good conductors of electricity
D. None of the above
Answer» D. None of the above
26.

Which among the following kinds of glass is used generally in making of the Bullet proofscreens?

A. Pyrex glass
B. Jena glass
C. Reinforced Glass
D. Flint Glass
Answer» D. Flint Glass
27.

White Phosphorous is represented by which among the following symbols?

A. P1
B. P2
C. P3
D. P4
Answer» E.
28.

Hard Water contains which of the following?

A. Aluminum
B. Chlorine
C. Calcium
D. Zinc
Answer» D. Zinc
29.

Thermonuclear Experimental Reactor (ITER) project is located at?

A. Italy
B. France
C. Germany
D. China
Answer» C. Germany
30.

Which among the following happens in an oxidation reaction ?

A. Electrons are gained
B. Electrons are lost
C. Protons are gained
D. Protons are lost
Answer» C. Protons are gained
31.

Which of the following measurements is not a unit of distance?

A. Ammeter
B. Cubit
C. Parsec
D. Angstrom
Answer» B. Cubit
32.

Which of the following term denotes the internal reaction force per unit area developed asa result of applied external force ?

A. Stress
B. Friction
C. Moment of Inertia
D. tension
Answer» B. Friction
33.

Which among the following correctly refers to Ischemia?

A. restriction in blood supply due to factors in the blood vessels
B. Abrupt fall in the blood Pressure
C. necrosis in a blood vessel due to a local lack of oxygen
D. condition of severely deficient supply of oxygen to the body
Answer» B. Abrupt fall in the blood Pressure
34.

The hormonal activities of which of the following substances were discovered while studying ―foolish seedling‖ disease in rice?

A. Cytokinins
B. Ethylene
C. Auxins
D. Gibberellin
Answer» E.
35.

Which among the following correctly represents a Parsec?

A. 0.326 Light Years
B. 3.261 Light Years
C. 32.61 Light Years
D. 3.026 Light Years
Answer» C. 32.61 Light Years
36.

Any disease which has a name with a suffix encephalitis is a disorder of ______?

A. Nerves
B. Brain
C. Lungs
D. Heart
Answer» C. Lungs
37.

Highest percentage of nitrogen is found in which among the following fertilizers among thegiven options?

A. Calcium ammonium nitrate
B. Ammonium nitrate
C. Calcium nitrate
D. Urea
Answer» E.
38.

Which among the following is not a function of Sympathetic nerves in Autonomic nervoussystem?

A. Enhancing the heart beats
B. constricting the blood vessels
C. dilate pupils
D. contract urinary bladder
Answer» E.
39.

In which of the following Mercury is a constituent?

A. Cinnabar
B. Chile saltpeter
C. Calamine
D. Gold
Answer» B. Chile saltpeter
40.

Which among the following is the correct impact of the London Forces in the Cycloalkanes?

A. The melting and boiling points get increased
B. The Melting and boiling points get decreased
C. There is not impact on the melting and boiling points
D. The melting point increases but boiling point decreases
Answer» B. The Melting and boiling points get decreased
41.

Above 70 °C, sodium bicarbonate has a property of gradually decomposing, which makes it usable in Bakery products. Which among the following end product of this Thermal decomposition of Sodium bicarbonate makes it usable for the above purpose?

A. Hydrogen
B. Carbon Dioxide
C. Water Vapor
D. Sodium Carbonate
Answer» C. Water Vapor
42.

Which among the following principle is used by Bats?

A. RADAR (Radio Detective & Ranging
B. SONAR (Sound Navigation & Ranging
C. law of reflection
D. law of diffraction
Answer» C. law of reflection
43.

One Torr is equivalent to how many mm of Mercury?

A. 1 mm
B. 10 mm
C. 100 mm
D. 0.1 mm
Answer» B. 10 mm
44.

Which among the following is ―Fool‘s Gold‖ ?

A. Copper Sulphate
B. Iron Sulfide
C. Brass
D. Silver Bromide
Answer» C. Brass
45.

Which among the following is not a ‗heriditary‘ disease?

A. Thalessemia
B. Colour-Blindness
C. Haemophilia
D. Leukemia
Answer» E.
46.

Which among the following component of a fluorescent lamp contributes maximum in making them costly?

A. Mercury vapor
B. Light-emitting phosphors
C. Ballast
D. Filament
Answer» D. Filament
47.

Whenever an alkali metal such as Lithium or Sodium reacts with water , which among thefollowing gas is produced?

A. Oxygen
B. Hydrogen
C. Ozone
D. Carbondioxide
Answer» C. Ozone
48.

Duralumin which is used in making aero planes is an alloy consisting of _____?

A. Aluminum & Copper
B. Aluminum, Copper & Manganese
C. Aluminum, Copper, Manganese & Magnesium
D. Aluminum and zinc
Answer» D. Aluminum and zinc
49.

Deficiency of Vitamin D leads to lack of absorption of which of the following minerals?

A. Iodine
B. Phosphorus
C. Calcium
D. Iron
Answer» D. Iron
50.

Which among the following has the lowest frequency Range?

A. L-Band
B. S-Band
C. C-Band
D. X-Band
Answer» B. S-Band