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Recently added practice questions

1241. Which of the following methods of depreciation calculations results in book values greater than those obtained with straight line method ?
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A. Sum of the years digit method

B. Multiple straight line method

C. Declining balance method

D. Sinking fund method
1242. Which of the following methods is used for laying of underground cables ?
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A. Draw-in-system

B. Direct laying

C. All of the above

D. Solid system

1243. Which of the following methods is more suitable for the determination of permeability of clayey soil ?
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A. horizontal permeability test

B. falling head method

C. none of the above

D. constant head method

1244. Which of the following metal occurs in free state ______________?
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A. Iron

B. Lead

C. Copper

D. Mercury

1245. Which of the following mechanisms produces mathematically an exact straight line motion____________________?
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A. Tchabichiff mechanism

B. Grasshopper mechanism

C. Watt mechanism

D. Peaucelliers mechanism

E. Ackermann mechanism

1246. Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal ?
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A. detectors

B. stretcher bar

C. iock bar

D. point lock

1247. Which of the following mechanical conveyors does not come under the division scrapers? ?
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A. Drag conveyor

B. Ribbon conveyor

C. Bucket elevators

D. Flight conveyor

1248. Which of the following mechanical conveyors does not come under the division carriers? ?
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A. Apron conveyor

B. Bucket elevator

C. Belt conveyor

D. Screw conveyor
1249. Which of the following measurements can be made by the measurement of emf ?
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A. All A., B. & C.

B. Composition of complex ions

C. Degree of hydrolysis

D. pH value

1250. Which of the following may result if an excessive amount of monomer is incorporated into an acrylic resin mixture ?
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A. Low impact strength

B. Excessive shrinkage

C. Excessive expansion

D. Excessive brittleness

1251. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?
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A. CaO

B. NaCl

C. NH3

D. Coke

1252. Which of the following may be a feature of acromegaly ?
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A. Hypoglycaemia

B. Micrognathia

C. Crowded teeth

D. Large tongue
1253. Which of the following may be a feature of acromegaly ?
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A. Large tongue

B. Crowded teeth

C. Hypoglycaemia

D. Micrognathia

1254. Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40C ?
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A. Nickel, monel, stainless steel and graphite

B. Brass, cast iron, mild steel and tin

C. Aluminium, copper, high silicon iron

D. Silicone rubber, teflon, porcelain and wood

1255. Which of the following materials is used in the manufacture of resistance grids to be used in the starters of large motors ?
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A. Aluminium

B. Cast-iron

C. Copper

D. Steel

1256. Which of the following materials is most elastic_________________?
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A. brass

B. plastic

C. steel

D. glass

E. rubber

1257. Which of the following material has nearly zero temperature co-efficient of resistance_________?
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A. Manganin

B. Carbon

C. Copper

D. Porcelain

1258. Which of the following material has least value of dielectric constant ?
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A. Ceramics

B. Glass

C. Oil

D. Paper

1259. Which of the following manometer has highest sensitivity_________________?
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A. U-tube with water

B. displacement type

C. micro-manometer with water

D. U-tube with mercury

E. inclined U-tube

1260. Which of the following low molecular weight (<104), soft & waxy polymer is used in chewing gum? ?
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A. Cellulose acetate

B. Polyvinyl acetate

C. Thiokol

D. PVC

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