854 MCQ Questions in english

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854 MCQ Questions in english हिन्दी

294. Dicot root and monocot root are different in that

A. open vascular bundles

B. scattered vascular bundles

C. well developed pith

D. radially arranged vascular bundles

293. Night blindness is caused by a lack of which vitamin?

A. Vitamin A

B. Vitamin B

C. Vitamin C

D. Vitamin D

292. Norepinephrine increases

A. blood pressure

B. saliva production

C. urine production

D. respiration

291. Pigmentation of the skin is due to

A. lymphocytes

B. monocytes

C. leucocytes

D. melanocytes

290. Which of the following plants was the subject of Gregor Mendel's famous experiment?

A. Gram

B. Wheat

C. Pea

D. Maize

289. Photosynthesis is a process

A. reductive and exergonic

B. reductive and catabolic

C. reductive, endergonic and catabolic

D. reductive, endergonic and anabolic

288. Osmosis is the process by which a semipermeable membrane allows a solution of higher concentration to flow into a solution of lower concentration. What about the statement is untrue?

A. Exact concentration of solution is not given

B. The flow of solution is not possible through semi permeable membrane

C. Character of semi permeable membrane is not given

D. All are incorrect

287. Plant sways toward the light source due to the curvature movement known as

A. geotropism

B. Thigmotropism

C. phototropism

D. chemotropism

286. Those vascular bundles that are radical are called

A. xylem and phloem occur on the different radii

B. xylem and phloem occur on the same radius

C. phloem is surrounded by xylem

D. xylem is surrounded by phloem

285. In an atomic explosion, a tremendous amount of energy is produced as a result of

A. Conversion of mechanical energy into nuclear energy

B. Conversion of neutrons into protons

C. Conversion of chemical energy into heat energy

D. Conversion of mass into energy

284. What separates isotopes is:

A. Sublimation

B. Crystallisation

C. Filtration

D. Distillation

283. X-rays have a wavelength in the range of

A. 1 cm

B. 10 micron

C. 1 angstrom

D. 1 m

282. There are mesons in

A. Gamma rays

B. Cosmic rays

C. Laser beam

D. X-rays

281. Which radioactive contaminant recently caught the attention of the public because it was found in construction materials?

A. Radium

B. Thorium

C. Radan

D. Plutonium

280. Using the nautical mile as a unit of measurement,

A. Road mile

B. Navigation

C. Measuring the boundaries of a nation

D. Astronomy

279. Which of the following is a unit of speed known as a knot?

A. Light waves

B. Ship

C. Aeroplane

D. Sound waves

278. Which of the following is utilised in nuclear reactors as a moderator?

A. Ordinary water

B. Thorium

C. Graphite

D. Radium

277. Which of the following is a radioactive element's positively charged particle?

A. Cathode ray

B. Gamma ray

C. Alpha ray

D. Beta ray

276. Atoms are made up of:

A. Protons only

B. Electrons and Nuclei

C. Electrons and protons

D. Electrons only

275. The unit for bars is

A. Heat

B. Temperature

C. Current

D. Atmospheric pressure

274. Which of the following gases undergoes decrease during the process?

A. Carbon

B. Oxygen

C. Helium

D. Hydrogen

273. Kilowatt is a measurement unit for:

A. Power

B. Work

C. Current

D. Electricity

272. Using a chronometer, you can:

A. Water waves

B. Colour contrast

C. Sound waves

D. Time

271. Accurate measurements of very brief time periods are made via

A. Pulsars

B. Atomic clocks

C. Quartz clocks

D. White dwarfs

270. How many miles are in one kilometre?

A. 1.6

B. 0.84

C. 0.62

D. 0.5

269. Kilohertz is a frequency measurement unit.

A. Electromagnetic radio wave frequencies

B. Voltage

C. Electric resistance

D. Power used by a current of one ampere

268. Equating one horse power to

A. 748 watts

B. 756 watts

C. 736 watts

D. 746 watts

267. What exactly does EPROM stand for?

A. Electric Programmable Read Only Memory (B) Erasable Programmable Read Only Memory

B. Erasable Programmable Read Only Memory

C. Evaluable Philotic Random Optic Memory

D. Every Person Requires One Mind

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