MCQOPTIONS
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MCQOPTIONS
This section includes 625 Mcqs, each offering curated multiple-choice questions to sharpen your GK knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Which electromagnetic radiation is used for satellite communication? |
| A. | Ultraviolet |
| B. | Infrared |
| C. | Microwave |
| D. | Millimeter wave |
| Answer» D. Millimeter wave | |
| 352. |
X - rays region lies between |
| A. | Ultraviolet and visible region |
| B. | Visible and infra - red region |
| C. | Gamma - rays and ultraviolet region |
| D. | Short radio waves and long radio waves |
| Answer» D. Short radio waves and long radio waves | |
| 353. |
Which one of the following is a condition of delayed blood clotting? |
| A. | Haemorrhage |
| B. | Hematuria |
| C. | Haemophilia |
| D. | Anaemia |
| Answer» D. Anaemia | |
| 354. |
Bile is produced by the |
| A. | Liver |
| B. | Stomach |
| C. | Pancreas |
| D. | Duodenum |
| Answer» B. Stomach | |
| 355. |
What is the average density of the earth? |
| A. | $${0.49 g/cm{^3}}$$ |
| B. | $${3.3 g/cm{^3}}$$ |
| C. | $${1 g/cm{^3}}$$ |
| D. | $${5.513 g/cm{^3}}$$ |
| Answer» E. | |
| 356. |
How is the relative humidity expressed? |
| A. | gram |
| B. | Kilogram |
| C. | Percent |
| D. | Ratio |
| Answer» D. Ratio | |
| 357. |
The current in a Photoelectric cell- |
| A. | increases on increasing the frequency of incident light. |
| B. | decreases on increasing the frequency of incident light. |
| C. | remains unchanged on increasing the intensity of incident light. |
| D. | increases on increasing the intensity of incident light. |
| Answer» E. | |
| 358. |
When a soap bubble is charged then- |
| A. | it does not undergo any change in size |
| B. | it contracts |
| C. | it expands |
| D. | None of these |
| Answer» D. None of these | |
| 359. |
A positively charged body has in it- |
| A. | deficiency of electrons |
| B. | deficiency of protons |
| C. | excess of neutrons |
| D. | excess of electrons |
| Answer» B. deficiency of protons | |
| 360. |
Which of the following instruments measures electromagnetic radiation? |
| A. | Pyrheliometer |
| B. | Cathetometer |
| C. | Bolometer |
| D. | Phenograph |
| Answer» D. Phenograph | |
| 361. |
What do AIDS viruses destroy? |
| A. | Lymphocyte |
| B. | Monocyte |
| C. | Neutrophils |
| D. | Basophils |
| Answer» B. Monocyte | |
| 362. |
From whom do teeth and bones gain strength and firmness? |
| A. | Calcium |
| B. | Fluorine |
| C. | Chlorine |
| D. | Sodium |
| Answer» B. Fluorine | |
| 363. |
Chloroform can be used as |
| A. | Analgesic |
| B. | Anaesthetic |
| C. | Antimalarial |
| D. | Antibiotic |
| Answer» C. Antimalarial | |
| 364. |
The manufacture of iron from iron ore involves the process of |
| A. | oxidation |
| B. | reduction |
| C. | fractional distillation |
| D. | electrolysis |
| Answer» C. fractional distillation | |
| 365. |
Which of the following is caused by the higher concentration of Nitrogen and Phosphorous? |
| A. | Eutrophication |
| B. | Hardness |
| C. | Alkalinity |
| D. | Acidity |
| Answer» B. Hardness | |
| 366. |
Housefly spreads |
| A. | Common cold |
| B. | Malaria |
| C. | Flu |
| D. | Typhoid |
| Answer» E. | |
| 367. |
' Lockjaw ' is the last phase of which of the following diseases ? |
| A. | Diptheria |
| B. | Pneumonia |
| C. | Syphilis |
| D. | Tetanus |
| Answer» E. | |
| 368. |
A star appears twinkling in the sky because of |
| A. | scattering of light by atmosphere |
| B. | reflection of light by atmosphere |
| C. | refraction of light by atmosphere |
| D. | diffraction of light by atmosphere |
| Answer» D. diffraction of light by atmosphere | |
| 369. |
When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? |
| A. | Hydrogen bond formation |
| B. | Vander walls forces |
| C. | Covalent attraction |
| D. | Dipole interaction |
| Answer» B. Vander walls forces | |
| 370. |
Microphone is a device which transforms the |
| A. | sound signal into current signal |
| B. | current signal into sound signal |
| C. | sound signal into light signal |
| D. | light signal into sound signal |
| Answer» B. current signal into sound signal | |
| 371. |
The maximum number of electrons on a principal shell is |
| A. | n |
| B. | n |
| C. | 2n |
| D. | 3n |
| Answer» D. 3n | |
| 372. |
What is colour of light related to? |
| A. | wavelength |
| B. | Frequency |
| C. | Quality |
| D. | Velocity |
| Answer» B. Frequency | |
| 373. |
The best conductor of heat among the following is |
| A. | alcohol |
| B. | mercury |
| C. | ether |
| D. | water |
| Answer» C. ether | |
| 374. |
The instrument which uses sound waves to measure the depth of oceans is |
| A. | Radar |
| B. | Sonar |
| C. | Altimeter |
| D. | Venturimeter |
| Answer» C. Altimeter | |
| 375. |
Safety fuse wire used in domestic electrical appliances is made of metal of low |
| A. | resistance |
| B. | melting point |
| C. | specific gravity |
| D. | conductance |
| Answer» C. specific gravity | |
| 376. |
Beakon light is used in |
| A. | Kr |
| B. | Ar |
| C. | He |
| D. | Ne |
| Answer» E. | |
| 377. |
The chemical name of baking soda is |
| A. | sodium carbonate |
| B. | sodium bicarbonate |
| C. | sodium chloride |
| D. | sodium nitrate |
| Answer» C. sodium chloride | |
| 378. |
Which spice has the highest position in value as an export item of India? |
| A. | Chili |
| B. | Dry red chili |
| C. | Turmeric |
| D. | Cardamom |
| Answer» C. Turmeric | |
| 379. |
The floral part that receives pollen - grains during pollination is |
| A. | ovary |
| B. | style |
| C. | stigma |
| D. | ovules |
| Answer» D. ovules | |
| 380. |
Is the symbol of gold? |
| A. | Mg |
| B. | Hg |
| C. | Ag |
| D. | Au |
| Answer» E. | |
| 381. |
In which state Goal Gumaj situated ? |
| A. | Andhra Pradesh |
| B. | Karnataka |
| C. | Maharastra |
| D. | Kerla |
| Answer» C. Maharastra | |
| 382. |
Beriberi is caused by a deficiency of |
| A. | Vitamin B3 |
| B. | Vitamin B6 |
| C. | Vitamin B1 |
| D. | Vitamin B12 |
| Answer» D. Vitamin B12 | |
| 383. |
Which of the following elements does not spread pollution? |
| A. | Copper |
| B. | Cadmium |
| C. | Arsenic |
| D. | Nickel |
| Answer» B. Cadmium | |
| 384. |
What acid is found in vinegar? |
| A. | lactic acid |
| B. | citric acid |
| C. | maleic acid |
| D. | acetic acid |
| Answer» E. | |
| 385. |
Galileo was an Italian astronomer who was |
| A. | developed the telescope |
| B. | discovered four satellites of Jupiter |
| C. | discovered that the movement of pendulum produces a regular time measurement |
| D. | All of the above |
| Answer» E. | |
| 386. |
G letter in 4G spectrum is used for which word? |
| A. | Global |
| B. | Governance |
| C. | Generation |
| D. | |
| Answer» D. Google | |
| 387. |
Photosynthesis occurs |
| A. | In nucleus |
| B. | In mitochondria |
| C. | In chloroplast |
| D. | Peroxysom |
| Answer» D. Peroxysom | |
| 388. |
On which principle of heredity of the mandal is based? |
| A. | somatic regeneration |
| B. | asexual reproduction |
| C. | sexual reproduction |
| D. | All of the above |
| Answer» D. All of the above | |
| 389. |
What do plants, which grow in salt-rich soils, say? |
| A. | Jirophyte |
| B. | hydrophyte |
| C. | halophyte |
| D. | sculent |
| Answer» D. sculent | |
| 390. |
From whom do the salt of food is formed? |
| A. | From weak acids and weak alkali |
| B. | From strong acid sturdy and strong alkali |
| C. | From weak acid seises and strong alkali |
| D. | From strong acids and weak alkali |
| Answer» C. From weak acid seises and strong alkali | |
| 391. |
Which of the following types of Noble gas is used for unconsciousness? |
| A. | Zenon |
| B. | Aragan |
| C. | Neon |
| D. | Helayam |
| Answer» B. Aragan | |
| 392. |
Which mixture of metal is used in the Gunmetal? |
| A. | Copper, Tin, Zinc |
| B. | Copper, Lead, Gold |
| C. | Copper, Zinc, Lead |
| D. | Copper, Iron, Nickel |
| Answer» B. Copper, Lead, Gold | |
| 393. |
Nitrification is the biological process of converting |
| A. | $$N_2$$into nitrate |
| B. | $$N_2$$into nitrite |
| C. | Ammonia into nitrite |
| D. | Ammonia into$$N_2$$ |
| Answer» D. Ammonia into$$N_2$$ | |
| 394. |
The principle of 'black hole' was enunciated |
| A. | C . V. By Raman |
| B. | H . J. Bhabha |
| C. | S . Chandrasekhar by |
| D. | H. Khurana by |
| Answer» D. H. Khurana by | |
| 395. |
Which mirror is used as a surface vision mirror in vehicles? |
| A. | Plane |
| B. | Convex |
| C. | Concave |
| D. | Inverted |
| Answer» C. Concave | |
| 396. |
Which of the following pairs is not matched? (A) James Watt : Vapour Engine(B) A. G. Bell : Telephone(C) J.L. Baird : Television(D) J. Perkins : Penicillin |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 397. |
Which of the following is used as retardant in nuclear reactor? |
| A. | Thorium |
| B. | Graphite |
| C. | Radium |
| D. | Ordinary water |
| Answer» C. Radium | |
| 398. |
The fibre of the electric bulb is formed. |
| A. | From copper |
| B. | Aluminium |
| C. | From lead |
| D. | From Tungston |
| Answer» E. | |
| 399. |
Indane gas is a mixture |
| A. | Butane and Hydrogen |
| B. | butane and oxygen |
| C. | Butane and Propane's |
| D. | Methane and oxygen |
| Answer» D. Methane and oxygen | |
| 400. |
A flat mirror has a minimum height to see a full reflection of a person. |
| A. | Equal to the height of the person |
| B. | Half of the height of a person |
| C. | One-fourth of the person's height |
| D. | Double the height of the person |
| Answer» C. One-fourth of the person's height | |