McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Uncategorized topics .
| 251. |
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» A. dermis of skin of mammals | |
| 252. |
One of the most resistant known biological material is |
| A. | lignin |
| B. | hemicelluloses |
| C. | sporopollenin |
| D. | lignocelluloses |
| Answer» C. sporopollenin | |
| 253. |
Parthenogenesis is a type of |
| A. | sexual reproduction |
| B. | asexual reproduction |
| C. | budding |
| D. | regeneration |
| Answer» B. asexual reproduction | |
| 254. |
Which one of the following is not correct about cathode rays? |
| A. | They are deflected to the positive plate of electromagnetic field |
| B. | The nature of cathode rays does not depend upon the nature of gas taken in the discharge tube |
| C. | The nature of cathode rays depends upon the nature of gas taken in the discharge tube |
| D. | Cathode rays are made up of material particles |
| Answer» C. The nature of cathode rays depends upon the nature of gas taken in the discharge tube | |
| 255. |
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» A. 10-3 atm | |
| 256. |
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» A. 2, 8, 7 | |
| 257. |
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» A. 12, 24 | |
| 258. |
Isotopes differ in the number of |
| A. | electrons |
| B. | protons |
| C. | neutrons |
| D. | nucleons |
| Answer» C. neutrons | |
| 259. |
The only elements having no neutron is |
| A. | protium |
| B. | deuterium |
| C. | tritium |
| D. | All of these |
| Answer» A. protium | |
| 260. |
-particle are |
| A. | double positive helium nucleus |
| B. | single positive helium nucleus |
| C. | neutral helium atom |
| D. | None of these |
| Answer» A. double positive helium nucleus | |
| 261. |
Neutron was discovered by |
| A. | J J Thomson |
| B. | James Chadwick |
| C. | Goldstein |
| D. | Rutherford |
| Answer» B. James Chadwick | |
| 262. |
Man made synthetic fibre is |
| A. | wool |
| B. | rayon |
| C. | nylon |
| D. | cotton |
| Answer» C. nylon | |
| 263. |
Which one of the following statements is not correct? |
| A. | All metals are solid at room temperature |
| B. | All metals are good conductor of heat and electricity |
| C. | All metals from basic oxides |
| D. | All metals possess luster when freshly prepared |
| Answer» A. All metals are solid at room temperature | |
| 264. |
Among metals, the poorest conductor of heat is |
| A. | lead |
| B. | tin |
| C. | bismuth |
| D. | mercury |
| Answer» A. lead | |
| 265. |
The correct order of electrical conductivity is |
| A. | Al > Au > Cu > Ag |
| B. | Cu > Ag > Al > Au |
| C. | Au > Ag > Al > Cu |
| D. | Ag > Cu > Au > Al |
| Answer» D. Ag > Cu > Au > Al | |
| 266. |
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» B. beaker B | |
| 267. |
A particle is projected up with an initial velocity of 80 ft/s. The ball will attain height of 96 ft/s from the ground after |
| A. | 2.0 and 3.0 s |
| B. | Only at 3.0s |
| C. | Only at 2.0 s |
| D. | After 1 and 2 s |
| Answer» A. 2.0 and 3.0 s | |
| 268. |
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» A. 12.25 m/s | |
| 269. |
Which one of the following statements is wrong? |
| A. | Sound travels in straight line |
| B. | Sound travels in the form of waves |
| C. | Sound is a form of energy |
| D. | Sound travels faster in vacuum than in air |
| Answer» D. Sound travels faster in vacuum than in air | |
| 270. |
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» D. intake of oxygen | |
| 271. |
Cyanobacteria are |
| A. | bacteria |
| B. | virus |
| C. | algae |
| D. | fungi |
| Answer» C. algae | |
| 272. |
Which one of the following statements is wrong? |
| A. | Voltmeter should have high resistance |
| B. | Ammeter should have low resistance |
| C. | Ammeter is placed in parallel |
| D. | Voltmeter is placed in parallel across the conductor in a |
| Answer» C. Ammeter is placed in parallel | |
| 273. |
A. The resistance of super conductor is zero. B. The super conductor are used for the transmission of electric power. |
| A. | A and B are true |
| B. | A and B are false |
| C. | A is true and B is false |
| D. | A is false and B is false |
| Answer» C. A is true and B is false | |
| 274. |
The resistivity of a wire |
| A. | increase with the length of the wire |
| B. | decreases with the area of cross-section |
| C. | decreases with the length and increases with the crosssection of a wire |
| D. | None of the above |
| Answer» D. None of the above | |
| 275. |
Ohm’s law is true |
| A. | for gases at low temperature |
| B. | for metallic conductor |
| C. | for electrolytes when current passes through them |
| D. | for diode when current flows |
| Answer» B. for metallic conductor | |
| 276. |
Which of the following is not an endocrine gland? |
| A. | Salivary gland |
| B. | Pituitary gland |
| C. | Thyroid gland |
| D. | Adrenal gland |
| Answer» A. Salivary gland | |
| 277. |
Two rods of same material and length have their electric resistance to ratio 1 : 2. When both rods are dipped in water, the correct statement will be |
| A. | A has more loss of weight |
| B. | B has more loss of weight |
| C. | Both have same loss of weight |
| D. | Loss of weight will be in the ratio 1 : 2 |
| Answer» C. Both have same loss of weight | |
| 278. |
The temperature of the Sun is measure with |
| A. | platinum thermometer |
| B. | gas thermometer |
| C. | pyrometer |
| D. | vapour pressure thermometer |
| Answer» C. pyrometer | |
| 279. |
In case of uniform circular motion, which of the following physical quantity do not remain constant? |
| A. | Speed |
| B. | Momentum |
| C. | Kinetic energy |
| D. | Mass |
| Answer» B. Momentum | |
| 280. |
Inertia is that property of a body by virtue of which the body is |
| A. | unable to change by itself the state, the rest |
| B. | unable to change by itself the state of uniform motion |
| C. | unable to change by itself the direction of motion |
| D. | unable to change by itself the state of rest and of |
| Answer» D. unable to change by itself the state of rest and of | |
| 281. |
A rider on horse back falls when horse starts running all of a sudden because |
| A. | rider is taken back |
| B. | rider is suddenly afraid of falling |
| C. | inertia of rest keeps the upper part of body at rest whereas lower part of the body moves forward with the horse |
| D. | None of the above |
| Answer» C. inertia of rest keeps the upper part of body at rest whereas lower part of the body moves forward with the horse | |
| 282. |
A person is standing in a elevator. In which situation, he finds his weight less than actual when |
| A. | the elevator moves upward with constant acceleration |
| B. | the elevator moves downward with constant acceleration |
| C. | the elevator moves upward with uniform velocity |
| D. | the elevator moves downward with uniform velocity |
| Answer» B. the elevator moves downward with constant acceleration | |
| 283. |
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» B. its momentum is doubled | |
| 284. |
Which of the following is not a chemical reaction? |
| A. | Souring of milk |
| B. | Rusting of iron |
| C. | Dissolution of sugar in water |
| D. | Digestion of food in our body |
| Answer» C. Dissolution of sugar in water | |
| 285. |
The physical state of water at 100°C is |
| A. | solid |
| B. | liquid |
| C. | gas |
| D. | plasma |
| Answer» C. gas | |
| 286. |
Which of the following characteristics are associated with gaseous state? |
| A. | Definite shape, compressible, fixed volume |
| B. | Incompressible, fixed shape and size |
| C. | No fixed shape and size, highly compressible |
| D. | Fixed shape, incompressible, closely packed |
| Answer» C. No fixed shape and size, highly compressible | |
| 287. |
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» D. increasing the pressure and lowering the temperature | |
| 288. |
The term ‘rancidity’ represents |
| A. | acid rain |
| B. | oxidation of fatty food |
| C. | rottening of fruit |
| D. | fading of coloured clothes in the sun |
| Answer» B. oxidation of fatty food | |
| 289. |
Evaporation of liquid occur at |
| A. | boiling point |
| B. | fixed temperature lower than the boiling point |
| C. | all temperature |
| D. | None of the above |
| Answer» C. all temperature | |
| 290. |
Largest part of the brain of human being is called |
| A. | olfactory lobe |
| B. | cerebral hemisphere |
| C. | corpus callosum |
| D. | optic nerve |
| Answer» B. cerebral hemisphere | |
| 291. |
Which part of human brain is more developed in comparison to others? |
| A. | Cerebrum |
| B. | Cerebellum |
| C. | Optic lobes |
| D. | Medulla oblongata |
| Answer» A. Cerebrum | |
| 292. |
Hearing is controlled by |
| A. | tyemporal lobes |
| B. | cerebrum |
| C. | hypothalamus |
| D. | parietal lobe |
| Answer» C. hypothalamus | |
| 293. |
Example of analogy is |
| A. | wings of bird and butterfly |
| B. | limbs of horse and man |
| C. | wings of bat |
| D. | None of the above |
| Answer» A. wings of bird and butterfly | |
| 294. |
Removal of anthers from flowers is the process which is known as |
| A. | emasculation |
| B. | breeding |
| C. | manuring |
| D. | fallowing |
| Answer» A. emasculation | |
| 295. |
Improved variety of paddy (rice) is |
| A. | Ranjit |
| B. | Sonalika |
| C. | Ganga 101 |
| D. | Pusa 215 |
| Answer» B. Sonalika | |
| 296. |
Which one of the following crop doesn’t required more nitrogen fertilizers? |
| A. | Maize |
| B. | Paddy |
| C. | Clover (Berseem) |
| D. | Sugarcane |
| Answer» C. Clover (Berseem) | |
| 297. |
Which one is used for weeding? |
| A. | Insecticides |
| B. | Weedicides |
| C. | Herbicides |
| D. | Pesticides |
| Answer» B. Weedicides | |
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