MCQOPTIONS
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MCQOPTIONS
This section includes 255 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge (GK) knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
The eye lens is a |
| A. | transparent double-convex lens |
| B. | transparent double-concave lens |
| C. | transparent concavo-convex lens |
| D. | none of these |
| Answer» B. transparent double-concave lens | |
| 202. |
Which of the following lens is used to minimise hypermetropia? |
| A. | convex lens |
| B. | concave lens |
| C. | cylindrical lens |
| D. | none of these |
| Answer» B. concave lens | |
| 203. |
BCG vaccine is used to protect a child from |
| A. | polio |
| B. | plague |
| C. | dengue |
| D. | tuberculosis |
| Answer» E. | |
| 204. |
The tricuspid valve occurs between the |
| A. | right auricle and right ventricle |
| B. | pulmonary aorta |
| C. | carotico-systemic aorta and left ventricle |
| D. | left ventricle |
| Answer» B. pulmonary aorta | |
| 205. |
When the object is at focus of a concave mirror, the image is formed at |
| A. | focus |
| B. | centre of curvature |
| C. | within focus |
| D. | infinity |
| Answer» E. | |
| 206. |
The distance between two consecutive crests is L, then the wavelength is given by |
| A. | L/2 |
| B. | 2 L |
| C. | 4 L |
| D. | L |
| Answer» E. | |
| 207. |
Removal of anthers from flowers is the process which is known as |
| A. | emasculation |
| B. | breeding |
| C. | manuring |
| D. | fallowing |
| Answer» B. breeding | |
| 208. |
Both erythrocytes and leucocytes are formed in the |
| A. | bone marrow |
| B. | thymus |
| C. | arterial walls |
| D. | lymph nodes |
| Answer» B. thymus | |
| 209. |
Evaporation is the process of changing liquid into vapour |
| A. | at any temperature |
| B. | above its boiling point |
| C. | at its boiling point |
| D. | below its boiling point |
| Answer» E. | |
| 210. |
Friction between any two objects is due to |
| A. | attraction between them |
| B. | repulsion between them |
| C. | some adhesive forces between them |
| D. | irregularities on the surfaces |
| Answer» E. | |
| 211. |
Mountain sickness results due to |
| A. | anaemic hypoxia |
| B. | arterial hypoxia |
| C. | lack of sufficient RBCs |
| D. | lack of sufficient WBCs |
| Answer» C. lack of sufficient RBCs | |
| 212. |
The process of respiration is concerned with |
| A. | liberation of oxygen |
| B. | liberation of carbon dioxide |
| C. | liberation of energy |
| D. | intake of oxygen |
| Answer» E. | |
| 213. |
When the speed of a moving body is doubled |
| A. | its acceleration is doubled |
| B. | its momentum is doubled |
| C. | its kinetic energy is doubled |
| D. | its potential energy is doubled |
| Answer» C. its kinetic energy is doubled | |
| 214. |
A stone is dropped into water from abridge 44.1 m above the water. Another stone is thrown vertically downward 1 s later. Both strike the water simultaneously. What was the initial speed of the second stone? |
| A. | 12.25 m/s |
| B. | 14.75 m/s |
| C. | 16.23 m/s |
| D. | 17.15 m/s |
| Answer» B. 14.75 m/s | |
| 215. |
The force which tries to bring the body back to its mean position is called |
| A. | deforming force |
| B. | restoring force |
| C. | gravitational force |
| D. | buoyant force |
| Answer» C. gravitational force | |
| 216. |
the flowing water of a river possesses ______ energy. |
| A. | gravitational |
| B. | potential |
| C. | electrical |
| D. | kinetic |
| Answer» E. | |
| 217. |
Cathode rays are produced when high electric voltage is applied to the gas held in a discharge tube at a pressure of about |
| A. | 10-3 atm |
| B. | 10-5 atm |
| C. | 1 atm |
| D. | 100 atm |
| Answer» B. 10-5 atm | |
| 218. |
An ice cube is floating in a glass of water. What happens to the water level when the ice melts? |
| A. | rises |
| B. | falls |
| C. | remains same |
| D. | first rises and then falls |
| Answer» D. first rises and then falls | |
| 219. |
Who discovered by his experiments with glass prisms that white light consists of seven colours? |
| A. | Newton |
| B. | Faraday |
| C. | Maxwell |
| D. | Young |
| Answer» B. Faraday | |
| 220. |
Which one of the following is the most common type of transpiration? |
| A. | stomatal |
| B. | lenticular |
| C. | foliar |
| D. | cuticular |
| Answer» B. lenticular | |
| 221. |
Parthenogenesis is a type of |
| A. | sexual reproduction |
| B. | asexual reproduction |
| C. | budding |
| D. | regeneration |
| Answer» C. budding | |
| 222. |
The hot air balloon rises because it is |
| A. | denser |
| B. | less dense |
| C. | equally dense |
| D. | the given statement is wrong |
| Answer» C. equally dense | |
| 223. |
Asthma is a respiration disease caused due to |
| A. | infection of trachea |
| B. | infection of lungs |
| C. | bleeding into pleura cavity |
| D. | spasm in bronchial muscles |
| Answer» E. | |
| 224. |
When a bicycle travels on a rough surface, its speed |
| A. | increases |
| B. | decreases |
| C. | remains the same |
| D. | none of these |
| Answer» C. remains the same | |
| 225. |
Beakers A, B and C contain zinc sulphate, silver nitrate and iron (II) sulphate solutions, respectively. copper pieces are added to each beaker. Blue colour will appear to in case of |
| A. | beaker A |
| B. | beaker B |
| C. | beaker C |
| D. | All the beakers |
| Answer» C. beaker C | |
| 226. |
The life span of human WBCs is normally |
| A. | 12-13 days |
| B. | 80-90 days |
| C. | 100-120 days |
| D. | 20-30 days |
| Answer» B. 80-90 days | |
| 227. |
A gas can be liquefied by |
| A. | lowering the temperature |
| B. | increasing the temperature |
| C. | increasing the pressure |
| D. | increasing the pressure and lowering the temperature |
| Answer» E. | |
| 228. |
Soda bottles are made of thick glass so that they can withstand the |
| A. | pressure in summer |
| B. | temperature in summer |
| C. | decrease in viscosity |
| D. | increase in potential energy |
| Answer» B. temperature in summer | |
| 229. |
In the absence of his tone proteins in prokaryotes, the an ioinic charges of each inter nucleotide phosphate in DNA is neutralized by |
| A. | phospholipids |
| B. | polyamines |
| C. | polysaccharides |
| D. | glycelipids |
| Answer» C. polysaccharides | |
| 230. |
Potential energy of the bob is maximum |
| A. | at the mean position |
| B. | at the extreme position |
| C. | between the mean position and extreme positions |
| D. | none of these |
| Answer» C. between the mean position and extreme positions | |
| 231. |
The frequency of a wave is 5 Hz. It refers to (type of wave) |
| A. | ultrasonics |
| B. | microwaves |
| C. | infrasonics |
| D. | radio waves |
| Answer» D. radio waves | |
| 232. |
Sound waves in air are _____ waves. |
| A. | longitudinal |
| B. | radio |
| C. | transverse |
| D. | electromagnetic |
| Answer» B. radio | |
| 233. |
In which of the following media will sound travel the fastest? |
| A. | solid |
| B. | both solid and liquid |
| C. | liquid |
| D. | gas |
| Answer» B. both solid and liquid | |
| 234. |
The audible range of frequency is |
| A. | 20 Hz to 20,000 Hz |
| B. | 40 Hz to 40,000 Hz |
| C. | 60 Hz to 60,000 Hz |
| D. | 10 Hz to 20,000 Hz |
| Answer» B. 40 Hz to 40,000 Hz | |
| 235. |
The life span of human WBC is normally |
| A. | 12 13 days |
| B. | 80-90 days |
| C. | 100-120 days |
| D. | 20-30 days |
| Answer» B. 80-90 days | |
| 236. |
The only elements having no neutron is |
| A. | protium |
| B. | deuterium |
| C. | tritium |
| D. | All of these |
| Answer» B. deuterium | |
| 237. |
Long-sightedness is caused by the eyeball being too short. It can be corrected by the use of a |
| A. | convergent lens |
| B. | plane mirror |
| C. | divergent lens |
| D. | none of these |
| Answer» B. plane mirror | |
| 238. |
Tidal volume of air in a normal healthy man during inspiration is about |
| A. | 300 400 ml |
| B. | 500 700 ml |
| C. | 900 1000 ml |
| D. | 100 250 ml |
| Answer» C. 900 1000 ml | |
| 239. |
The electronic configuration of chlorine with atomic number 17 is |
| A. | 2, 8, 7 |
| B. | 2, 9, 6 |
| C. | 2, 10, 7 |
| D. | 2, 9, 9 |
| Answer» B. 2, 9, 6 | |
| 240. |
Man made synthetic fibre is |
| A. | wool |
| B. | rayon |
| C. | nylon |
| D. | cotton |
| Answer» D. cotton | |
| 241. |
Volume of air inspired and expired with each normal breath is called |
| A. | tidal volume |
| B. | inspiratory capacity |
| C. | total lung capacity |
| D. | residual volume |
| Answer» B. inspiratory capacity | |
| 242. |
The maximum possible volume of air, which can be inspiration, is called as |
| A. | tidal air volume |
| B. | vital lung capacity |
| C. | complemental air volume |
| D. | total lung capacity |
| Answer» C. complemental air volume | |
| 243. |
Out of the following, which frequency is not clearly audible to the human ear? |
| A. | 30 Hz |
| B. | 30,000 Hz |
| C. | 300 Hz |
| D. | 3000 Hz |
| Answer» C. 300 Hz | |
| 244. |
Sebaceous glands are found in |
| A. | dermis of skin of mammals |
| B. | epithelium of intestine of frog |
| C. | epithelium of stomach of frog |
| D. | epidermis of skin mammals |
| Answer» B. epithelium of intestine of frog | |
| 245. |
Largest part of the brain of human being is called |
| A. | olfactory lobe |
| B. | cerebral hemisphere |
| C. | corpus callosum |
| D. | optic nerve |
| Answer» C. corpus callosum | |
| 246. |
Which of the following frequencies of sound cannot be heard by human beings? |
| A. | 5 Hz |
| B. | 20 Hz |
| C. | 400 Hz |
| D. | 1000 Hz |
| Answer» B. 20 Hz | |
| 247. |
Which part of human brain is more developed in comparison to others? |
| A. | Cerebrum |
| B. | Cerebellum |
| C. | Optic lobes |
| D. | Medulla oblongata |
| Answer» B. Cerebellum | |
| 248. |
A divalent cation has 10 electrons and 12 neutrons. The atomic number and mass number of the elements are |
| A. | 12, 24 |
| B. | 10, 12 |
| C. | 11, 25 |
| D. | 8, 12 |
| Answer» B. 10, 12 | |
| 249. |
Percentage of O2 present in inhaled air in man is about |
| A. | 21% |
| B. | 78% |
| C. | 1% |
| D. | 43% |
| Answer» B. 78% | |
| 250. |
The largest number of cells bodies of neurons in our body is found in |
| A. | brain |
| B. | spinal cord |
| C. | tongue |
| D. | retina |
| Answer» B. spinal cord | |