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.

51.

The power of a lens is measured in :

A. diopters
B. aeon
C. lumen
D. candela
Answer» B. aeon
52.

Which of the following organism grows on Common Bread?

A. Bacterium
B. Yeast
C. Mucor
D. Virus
Answer» D. Virus
53.

Late Hargobind Khorana had received Nobel Prize in physiology in 1968, for work on which among the following?

A. Mechanisms of the action of hormones
B. Chemical Structure of antibodies
C. Interpretation of the genetic code
D. Structural and functional organization of the cell
Answer» D. Structural and functional organization of the cell
54.

Which among the following is most electronegative element?

A. Chlorine
B. FLourine
C. Bromine
D. All of them have same electronegativity
Answer» C. Bromine
55.

Why do the bacteria develop resistance after slowly being exposed to a particular antibiotic?Due to mutation in genesDue to Horizontal Gene TransferDue to Vertical Gene TransferChoose the correct option:

A. Only 1
B. Only 1 & 2
C. Only 2 & 3
D. 1, 2 & 3
Answer» C. Only 2 & 3
56.

For which of the following diseases first successful vaccination was devloped (it is causedby Variola virus)?

A. Cow pox
B. Chicken pox
C. Small pox
D. Polio
Answer» D. Polio
57.

Which among the following gives hissing sound when dissolved into H2O?

A. CaCO2
B. Ca(OH)2
C. CaO
D. CaCl2
Answer» D. CaCl2
58.

kalpana-1 was first exclusive satellite built by ISRO in which of the following satellitesystems?

A. INSAT
B. METSAT
C. GSAT
D. EDUSAT
Answer» C. GSAT
59.

Biologists have been able to demonstrate the hearing and sound sensory mechanism through the acoustico-lateralis system in which of the following vertebrates ?

A. amphibians
B. snakes
C. fishes
D. Birds
Answer» D. Birds
60.

Causing agent of which of the following disease produces Integrase enzyme?

A. Malaria
B. Small Pox
C. Swine flu
D. AIDS
Answer» E.
61.

Which of the following waves can be used to measure the speed of a approaching car?

A. Light waves
B. Micro waves
C. Radio waves
D. Sound waves
Answer» D. Sound waves
62.

Meg-1 is an imprinted gene which finds expression only from maternal chromosomes which regulates the transfer of nutrients from the plant to the seed. This gene has been discovered in:

A. Maize
B. cotton
C. jute
D. Sugarcane
Answer» B. cotton
63.

Which among the following is major component of Gobar Gas?

A. Butane
B. Ethane
C. Propane
D. Metahne
Answer» E.
64.

Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up?

A. Capillary action
B. surface tension
C. atmospheric pressure
D. cohesive forces
Answer» D. cohesive forces
65.

Which among the following is a property of Insulator?

A. The electrons of the outer orbits are loosely bound to the nucleus , however can not flow through them
B. The electrons of the outer orbits are tightly bound to the nucleus and can not flow through them
C. The electrons of the outer orbits are loosely bound to the nucleus , and can flow through them
D. None of the above
Answer» C. The electrons of the outer orbits are loosely bound to the nucleus , and can flow through them
66.

Consider the following statements:1. Color blindness is more common in men2. Color blindness is an X-linked recessive trait3. If both the X chromosomes are defective, a woman may have color blindnessWhich among the above statements are correct?

A. 1 only
B. 1 & 2
C. 2 & 3
D. all are correct
Answer» E.
67.

The most important contributor of sea salt is ____?

A. Rivers
B. Salty Rocks at bottom of sea
C. Aquatic animals in Sea
D. Atmosphere around sea
Answer» B. Salty Rocks at bottom of sea
68.

Gammaxene, D.D.T. and Bleaching powder are important compounds of :

A. Chlorine
B. Nitrogen
C. Sulphur
D. Phosphorus
Answer» B. Nitrogen
69.

The human musculoskeletal system consists of

A. human skeleton
B. bones attached to other bones with joints
C. skeletal muscle attached to the skeleton by tendons.
D. All the above
Answer» E.
70.

The process of purifying water by spraying water on to a bed of stones where microorganism live so that the microorganisms feed on the pathogens in water and make the water free from harmful pathogens is called?

A. Stone bed method
B. biofilter method
C. aerobic filtration
D. anerobic filtration
Answer» C. aerobic filtration
71.

Which acid is described as HOOCCOOH?

A. Oxalic Acid
B. Acetic Acid
C. Carbonic Acid
D. Citric Acid
Answer» B. Acetic Acid
72.

Which among the following have a ‗mixed heart‘ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?

A. Birds
B. Fishes
C. Reptiles
D. Nematodes
Answer» D. Nematodes
73.

―Oil of mirbane‖ is the most common name of which among the following?

A. Phenol
B. Toluene
C. Phenolphthalein
D. Nitrobenzene
Answer» E.
74.

One Nautical Mile is equivalent to how many meters?

A. 1552
B. 1652
C. 1752
D. 1852
Answer» E.
75.

What is the average life of Red Blood cells in our body?

A. 30-40 days
B. 70-80 days
C. 100-120 days
D. 160-180 days
Answer» D. 160-180 days
76.

Which among the following kinds of lenses are used to treat Astigmatism?

A. Convex Lens
B. Concave Lens
C. Bifocal Lens
D. Cylindrical
Answer» E.
77.

In which of the following era began the Self replicating RNA molecules on Earth ?

A. Basin Era
B. Nectarian Era
C. Early Imbrian
D. Cryptic Era
Answer» B. Nectarian Era
78.

Which among the following is the most important characteristic of Noble metals?

A. Luster
B. Non reactive nature
C. Preciousness
D. Rare availability
Answer» C. Preciousness
79.

The chemical oxygen demand COD test is commonly used to measure which of thefollowing?

A. amount of organic compounds in water
B. amount of oxygen in water
C. amount of oxygen in a chemical
D. amount of oxygen used in a oxygenation process
Answer» B. amount of oxygen in water
80.

Which among the following comes under the study area of Psychrometrics?

A. Relative Humidity
B. physical and thermodynamic properties of gas-vapor mixtures
C. theory and technique of educational and psychological measurement
D. Atmospheric Pressure at Colder Regions of the World
Answer» C. theory and technique of educational and psychological measurement
81.

Trimethylxanthine is a chemical name of a stimulant which is found in tea and coffee.What is the popular name?

A. Thein
B. Caffeine
C. Theobromine
D. Theophylline
Answer» C. Theobromine
82.

What fraction of Body‘s calcium is stored in Bones and teeth?

A. 85%
B. 90%
C. 94%
D. 99%
Answer» E.
83.

Which among the following is the unit of the scale used for measurement of the spicy heat of a chili pepper?

A. Smith
B. Wright
C. Orville
D. Scoville
Answer» E.
84.

Which among the following is not a carnivorous plant?

A. Pitcher plant
B. Venus Fly Trap
C. waterwheel plant
D. Marsh Mallow
Answer» E.
85.

With which of the following animals Galton‘s whistle is most commonly associated?

A. Horses
B. Dogs
C. whales
D. Shark
Answer» C. whales
86.

Which of the following statements is not true regarding LASER?

A. A LASER is a device that emits light through a process of optical amplification .
B. LASER beams can be focused to very tiny spots, achieving a very high irradiance.
C. The emitted LASER light is notable for its high degree of dispersive power unattainable using other technologies.
D. LASER light is used in bar-code scanners
Answer» D. LASER light is used in bar-code scanners
87.

Steel is an alloy consisting mostly of iron, with a carbon content between 0.2% and 2.1% byweight. An increasing amount of Iron will result in which of the following?

A. Increase Hardening
B. Decrease Hardening
C. Increase ductility
D. Increase melting Point
Answer» B. Decrease Hardening
88.

Consider the following statements:Both Cochlea and Vestibular system are parts of Internal earOnly Cochlea makes the auditory system of human bodyNone of the malleus, incus, and stapes are found in the internal ear. Which among the above statements are correct ?

A. 1 & 2
B. 2 & 3
C. 1 & 3
D. all 1,2 & 3
Answer» D. all 1,2 & 3
89.

With which of the following diseases Project Kavach is related to

A. Malaria
B. Dengue
C. AIDS
D. Swineflu
Answer» D. Swineflu
90.

Which among the following diseases is very rare in women compared to the men affected with the same disorder?

A. Osteoporosis
B. Color blindness
C. Nyctalopia
D. Down Syndrome
Answer» C. Nyctalopia
91.

From which part of the plant Glycyrrhiza glabra , Liquorice or Mulethi is obtained?

A. Leaves
B. Roots
C. Fruits
D. Stem
Answer» C. Fruits
92.

An Jewellery was left exposed to the atmosphere for some time and it becomes coated with green carbonate. The Jewellery is made up of which of the following?

A. Copper
B. Silver
C. Zinc
D. Gold
Answer» B. Silver
93.

Which among the following is the most stable form of carbon under standard conditions?

A. Charcoal
B. Graphite
C. Diamond
D. Amorphous carbon
Answer» C. Diamond
94.

Bubo bubo is the scientific name of which of the following species?

A. Hen
B. Peacock
C. Eagle
D. Owl
Answer» E.
95.

Which among the following is the most acceptable range of LEO (Low Earth orbit)?

A. 350 – 2,600 kms
B. 200-2000 kms
C. 160 – 2,000 kms
D. 160-1600 kms
Answer» D. 160-1600 kms
96.

At which among the following points, the high tides are lower than usual and low tides arehigher than usual?

A. New Moon
B. Full Moon
C. Apogee
D. Perigee
Answer» D. Perigee
97.

Which among the following is a correct definition of Cyclotron?

A. Accelerator of charged atomic particles
B. Device for detection of High Energy atomic radiation
C. Device for storing electric charge
D. Device for storing heat
Answer» B. Device for detection of High Energy atomic radiation
98.

Which part of the plant Raphanus sativus is edible?

A. Fruit
B. Leaves
C. Roots
D. All the above
Answer» E.
99.

Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixingwith Petroleum?

A. Raise Octane Number
B. Antioxidant Stabilizer
C. Lead Scavanger
D. Fuel Dye
Answer» B. Antioxidant Stabilizer
100.

What is the main use of Bisphenol A drug ?

A. A drug which was used by sports persons for doping
B. A chemical compound which is used in plastics used for food packaging
C. An alloy which is used in cans of cola drinks
D. None of the above
Answer» C. An alloy which is used in cans of cola drinks