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Recently added practice questions

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

6285. Rate of a chemical reaction is independent of the concentration of the reactants for a _________________ reaction?
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A. Zero order

B. Consecutive

C. None of these

D. Third order

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

6287. Rapid increase in the price level during periods of recession of high unemployment are known as ?
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A. slump

B. stagnation

C. inflation

D. stagflation
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.

6292. Ramees buys good worth Rs. 6650. He gets a rebate of 6% on it. After getting the rebate, he pays sales tax @ 10%. Find the amount he will have to pay for the goods.
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A. Rs. 6654

B. Rs. 7000

C. Rs. 6999.20

D. Rs. 6876.10
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
6295. Rakaposhi peak is located at ___________ district in Gilgit Baltistan.
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A. Astore

B. Sikardu

C. Hunza

D. Nagar valley
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

6297. Rainbow is seen after rain because of hanging molecules of water which act as __________?
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A. Slabs

B. Mirror

C. Prism

D. Lens

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

6299. Rafael Mariano Grossi will be the ________ Director General of the International Atomic Energy Agency (IAEA), since it was founded in 1957?
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A. 11th

B. 8th

C. 5th

D. 6th
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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