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Pakistan's MCQ Practice Library for Competitive Exams

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Questions are reviewed over time, but syllabuses and factual answers can change. Always confirm important information with the relevant official source.

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Recently added practice questions

6254. Recently in august 2022, AJK minister for Higher Education gets life imprisonment in murder case, Named?
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A. Amir Asif Shah

B. Malik Zaffar Iqbal

C. Rashid Hussain Shah

D. None of these

6258. Reboiler is considered as one theoretical plate, because_____________________?
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A. Reboiler itself contains one plate

B. None of these

C. Vapour is recycled to the column

D. Of the assumption that vapour and liquid leaving the reboiler are in equilibrium
6259. Reboiler is considered as one theoretical plate, because_____________________?
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A. Vapour is recycled to the column

B. Reboiler itself contains one plate

C. Of the assumption that vapour and liquid leaving the reboiler are in equilibrium

D. None of these

6261. Real risk-free interest rate in addition with an inflation premium is equal to_____________?
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A. Required interest rate

B. Quoted risk-free interest rate

C. Premium risk-free interest rate

D. Liquidity risk-free interest rate

6262. Real name of Bi Aman was?
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A. Abadi Bano

B. Shazia Bano

C. Tasmia Bano

D. Razia Bano

6263. Reactions with high activation energy are_____________________?
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A. Very temperature sensitive

B. Always reversible

C. Always irreversible

D. Temperature insensitive

6265. Reaction of phosphate rock with 98% H2SO4 produces ______________________?
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A. None of these

B. White phosphorous

C. Superphosphate

D. Ortho-phosphoric acid
6266. Reaction of calcium Fluorapatite with sulphuric acid produces ___________________?
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A. Ortho-phosphoric acid

B. Red phosphorous

C. Simple superphosphate

D. Triple superphosphate

6267. Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
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A. Ammonium phosphate

B. None of these

C. Superphosphate

D. Triple superphosphate

6269. RBCs are also called as_______?
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A. AOT

B. Leucocytes

C. Nucleotides

D. Erythrocytes
6271. Rayon is superior to cotton in making gauge for wound treatment, because rayon_____________________?
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A. Is a synthetic polymer

B. Does not stick to the wound unlike cotton

C. Can absorb over 90% of its own weight of water

D. Both B. and C.

6273. Ratio of inertia force to elastic force is known as _____________________?
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A. Webers number

B. Reynolds number

C. Froude number

D. Mach number

E. none of the above

6276. Ratio of crop yield to the amount of water utilized is called______________?
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A. Crop water use efficiency

B. Soil water use

C. Water intensity

D. Soil plant water relationship

6278. Rates of poverty tend to be highest among_______________?
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A. Female headed households

B. all of the above

C. minorities

D. children

6279. Rate of return which is asked by investors is classified as_____________________?
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A. Weighted average cost of capital

B. Weighted cost of capital

C. Mean cost of capital

D. Average cost of capital

6280. Rate of return that an investment provides its investor is classified as__________?
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A. Investment return rate

B. Intrinsic rate of return

C. Internal rate of return

D. International rate of return

6281. Rate of heat transfer by vaporisation from pools of water is affected by the ____________________?
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A. Nature of heating surface and distribution of bubbles

B. Viscosity of water

C. All A., B. and C.

D. Surface tension of water

6282. Rate of heat transfer by vaporisation from pools of water is affected by the ____________________?
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A. Surface tension of water

B. Viscosity of water

C. All A., B. and C.

D. Nature of heating surface and distribution of bubbles

6283. Rate of flow of sewage is generally assumed__________________?
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A. Equal to the rate of water supply

B. Less than the rate of water supply

C. More than the rate of water supply

D. At 150 litres per capita
6284. Rate of entry of water in soil is__________?
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A. Leaching

B. Infiltration

C. Percolation

D. Seepage

6286. Rate limiting step in cholesterol synthesis is_______________?
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A. HMG CoA lyase

B. HMG CoA reductase

C. Mevalonate synthetase

D. HMG CoA synthetase

6288. Rapid growth at exponential ration occurs in which phase of bacterial growth:
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A. Stationary phase

B. Death / decline phase

C. Lag phase

D. Log phase
6289. Raoults law applies to the___________________?
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A. Non-volatile solute

B. Solvents

C. Non-ideal solution only

D. All liquid solutions

6290. Rankine efficiency of a steam power plant____________?
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A. improves in summer as compared to that in winter

B. improves in winter as compared to that in summer

C. is unaffected by climatic conditions

D. none of the above

6291. Ramming masses are used for____________________?
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A. Obtaining monolithic working faces

B. Repairing construction of various furnace parts

C. Both A. & B.

D. Neither A. nor B.

6293. RAM is an example of___________?
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A. Secondary memory

B. Primary memory

C. Both A. and B.

D. none

6294. Ram compression in turbojet involves____________________?
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A. lost work

B. increasing speed of incoming air

C. compression of inlet air

D. leakage losses

E. reduction of speed of incoming air and conversion of part of it into pressure energy
6296. Raising taxes and increasing welfare payments ?
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A. improves equity at the expense of efficiency.

B. reduces market power

C. improves efficiency at the expense of equity.

D. Proves that there is such a thing as a free lunch

6298. Rain drops are spherical because of__________________?
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A. viscosity

B. atmospheric pressure

C. none of the above

D. surface tension forces

E. air resistance

6300. Radiographs of a 40 years old female revealed radiolucent areas around several of her mandibular teeth, all which tested vital on the electric pulp tester, These area represent ?
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A. Periapical osteofibroses

B. Bone hypoplasias associated with opalescent teeth

C. Chronic periapical abscesses

D. Multiple granulomas

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