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Recently added practice questions

6151. Rittingers crushing law states that_____________________?
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A. For a given machine and feed, crushing efficiency is dependent on the size of the feed &

B. Work required to form a particle of any size is proportional to the square of the surface to

C. Work required to form a particle of a particular size is proportional to the square root of the

D. face to volume ratio of the product

E. Work required in crushing is proportional to the new surface created

F. ume ratio of the product

6152. Rising promotion costs and shrinking profit margins are the result of ___________.
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A. Changing technology

B. Deregulation

C. Heightened competition

D. Globalization

6153. Rishi Kapoor died at the age of _____after a long battle with cancer.
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A. 67

B. 66

C. 68

D. 65

6154. Rise time is defined by the interval when____________?
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A. gate current rises from 90 % to 100 % of it final value

B. anode voltage drops from 90 % to 10 % of its initial value

C. anode current rises 10 % to 90 % of its final value

D. both B and C
6155. Rise of water table above the ground surface causes________________?
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A. increase in pore water pressure but decrease in total stress

B. equal increase in pore water pressure and total stress

C. equal decrease in pore water pressure and total stress

D. decrease in pore water pressure but increase in total stress

6156. Ripple factor is the ratio of______________________?
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A. Rms value of the ac component of load voltage to the dc voltage

B. Peak value of the dc component of load voltage to the ac voltage

C. Average value of the ac component of load voltage to the peak value of voltage

D. Average value of the dc component of load voltage to the ac voltage

6157. Ringelmann chart is used for the evaluation of _____________ pollution?
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A. Air

B. Radioactive

C. Noise

D. Water

6158. Rill : Stream : : Pony : ____________?
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A. Mule

B. Horse

C. Donkey

D. Mare

6159. Right to information is provided in _____________ of the Constitution of 1973 ?
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A. Article 19

B. Article 15

C. Article 19-A

D. None of above

6160. Right to Fair trial is granted by Article 10A, of the Constitution of 1973 which was added by __________ amendment?
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A. 19th

B. None of above

C. 17th

D. 18th
6161. Right to equality is a: _________?
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A. Political right

B. Civil right

C. Moral right

D. Legal right

6162. Right to equality before law is: _________?
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A. Economic right

B. Political right

C. Moral right

D. Religious right

E. Natural right

6163. Right to equality before law is: _________?
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A. Religious right

B. Natural right

C. Political right

D. Economic right

E. Moral right

6164. Right angle prism has how many sides?
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A. 4

B. 6

C. None of these

D. 5
6165. Ricardo built his theory round:
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A. Capital

B. Natural resources

C. Value

D. Wages
6166. Ribose is an example of___________?
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A. Hexose

B. Trioses

C. Tetroses

D. Pentose
6167. Revisional power exercised by High Court or Court of Session is ___________ in nature?
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A. None of the above

B. Discretionary

C. Substantive

D. None of the these

6168. Reverse reaction in a chemical equilibrium is favoured by the________________?
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A. Increase in the concentration of one of the products

B. Removal of one of the products regularly

C. Increase in the concentration of one of the reactants

D. None of these

6169. Reverse reaction in a chemical equilibrium is favoured by the________________?
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A. Increase in the concentration of one of the reactants

B. None of these

C. Removal of one of the products regularly

D. Increase in the concentration of one of the products
6170. Reverse process of photoelectric effect is_______________?
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A. annihilation of matter

B. X-rays production

C. Compton effect

D. pair production

6171. Reverse osmosis is also called_________________?
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A. Dialysis

B. Ultra-filtration

C. Diffusion

D. Electrodialysis

6172. Reuters news agency was established in_________?
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A. 1846

B. 1849

C. 1855

D. 1851
6173. Retrusion of mandible is achieved by _______________?
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A. Temporalis

B. Masseter

C. None of the above

D. Lateral pterygoid

6174. Retrusion of mandible is achieved by _______________?
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A. Lateral pterygoid

B. None of the above

C. Temporalis

D. Masseter

6175. Retired general Pervez Musharraf, the countrys former president, was sentenced to death for high treason by _____ on 17 Dec,2019?
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A. Lahore High Court

B. Islamabad High Court

C. Supreme Court of Pakistan

D. A special court
6176. Retinol is the chemical name of?
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A. Vitamin A

B. Vitamin K

C. Vitamin C

D. Vitamin B

6177. Resultant pressure of the liquid in the case of an immersed body acts through _________________?
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A. metacentre

B. center of gravity

C. in between e.g. and center of pressure

D. center of pressure

E. center of buoyancy

6178. Ressells bodies are found in______________?
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A. Activated macrophages

B. Erythrocytes

C. Plasma cells

D. Histiocytes

6179. Respiration rate in sheep is __________________________?
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A. 35 45 /min

B. 15 -30 /min

C. 25 40 /min

D. 45 60 /min

6180. Resources are defined as___________________?
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A. everything that is needed for the production of goods and services including human energy

B. anything that is produced in factories

C. anything that is manmade

D. anything that is derived from natural including

6181. Resorption of root of primary incisors starts at_____________?
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A. 8 yrs

B. 6 yrs

C. 4 yrs

D. 10 yrs

6182. Resorption of dental tissue is caused by_____________?
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A. Odontoblasts

B. Osteoblasts

C. Osteoclasts

D. Odontoclasts
6183. Resistance to slag attack of a refractory _____________________?
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A. Decreases, if defective joints & cracks exist in the refractory

B. Decreases at higher temperature

C. All A., B. and C.

D. Depends on the nature of slag & refractory

6184. Resistance to heat flow by conduction is proportional to (where, t & ? are thickness & density of the material respectively and A = area normal to the direction of heat flow.) ?
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A. 1/A

B. 1/?

C. t

D. All A., B. & C.
6185. Resistance of an ideal insulator is __________________?
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A. zero

B. depends upon nature

C. infinite

D. finite

6186. Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) ?
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A. P/nRT

B. nRT/P

C. nRT/V

D. V/nRT
6187. Resistance grounding is used for voltage between_________________?
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A. 3.3kVandllkV

B. HkVto33kV

C. none of the above

D. 33kVto66kV

6188. Resilience of a bolt can be increased by increasing its __________________?
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A. Length

B. Head diameter

C. Shank diameter

D. None of these

6189. Residual stress in materials_________________?
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A. is independent of external loads

B. is always beneficial

C. becomes zero when external load is removed

D. acts when external load is applied

E. is always harmful

6190. Residual magnetism in steel for magnets is increased by the addition of__________________?
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A. Tungsten

B. Cobalt

C. Chromium

D. Nickel

6191. Requirements Management is a prerequisite for Quality-Oriented Development ?
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A. FALSE

B. True
6192. Requirements analysis is critical to the success of a development project ?
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A. FALSE

B. Depends upon the size of project

C. None of the mentioned

D. True
6193. Request for quotation (RFQ) is_______________?
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A. a document that compares business and technical requirements of a commercial application package against the capabilities and features of a specific commercial application package

B. a contract with management and the user community to develop or enhance an information system

C. a document that communicates business, technical, and support requirements for an application software package to a single vendor that has been determined as being able to supply that application package and service

D. a document that communicates business, technical, and support requirements for an application software package to vendors that wish to compete for the sale of that application package and services

6194. REQUEST : COMMAND ::
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A. relegate : consign

B. select : reject

C. propose : stipulate

D. enlist : support

E. volunteer : accept

6195. Repression refers to ____________?
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A. Frustration

B. None of these

C. Primary defense mechanism

D. Regression

6196. Repeating a research project called ?
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A. validation

B. generalization

C. replication

D. verification

6197. Repeating a research project called ?
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A. replication

B. generalization

C. validation

D. verification

6198. Repeating a persons name over and over immediately after being introduced is an example of _________________?
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A. chunking

B. elaboration

C. maintenance rehearsal

D. a mnemonic device

6199. Renaissance thinkers argued that women should be educated______________?
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A. just the same as men

B. confined solely to music, dancing, and knitting

C. with emphasis on science and mathematics

D. not at all

6200. Renaissance of Sciences was written by:_____________?
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A. Mawardi

B. Farabi

C. Tusi

D. Ghazzali

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