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Recently added practice questions

1541. Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency ?
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A. Iso-paraffins

B. Aromatics

C. Naphthenes

D. Paraffins
1542. Which of the following human behaviors is important to a Freudian psychoanalytic study of William Shakespeares Hamlet ?
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A. Obsessions

B. Slips of the tongue

C. All of the above.

D. Changes in emotional states

1543. Which of the following hormones increase the sensitivity of heart to epinephrine________________?
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A. Parathyroid

B. Glucagon

C. Thyroid

D. Insulin

1544. Which of the following historical events occurred in Dantes lifetime ?
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A. The Crusades

B. The Enlightenment

C. The Italian Renaissance

D. The Black Death

1545. Which of the following has the maximum API gravity of all ?
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A. Kerosene

B. Petrol

C. Furnace oil

D. Diesel

1546. Which of the following has the lowest Prandtl number ?
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A. Water

B. Molten sodium (a coolant used in fast breeder reactor)

C. Transformer oil

D. Dilute H2SO4

1547. Which of the following has the least calorific value (kcal/Nm3) ?
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A. Natural gas

B. Coke oven gas

C. Blast furnace gas

D. Sewage gas

1548. Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent ?
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A. Pressure

B. Nature of solute

C. Nature of solvent

D. Temperature

1549. Which of the following has the highest value of thermal conductivity ?
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A. Water

B. Sold ice

C. Steam

D. Melting ice

1550. Which of the following has the highest modulus of elasticity (about 7 106 kg/cm2) ?
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A. Tungsten carbide

B. Stainless steel

C. Superalloys

D. High speed steel

1551. Which of the following has the highest flame velocity ?
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A. CO

B. CH4

C. C2H6

D. H2
1552. Which of the following has the highest flame speed ?
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A. C2H6

B. H2

C. CH4

D. CO

1553. Which of the following has the highest calorific value ?
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A. Sub-bituminous coal

B. Peat

C. Anthracite

D. Lignite

1554. Which of the following has sliding motion________________?
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A. cross-head

B. crank

C. connecting rod

D. crank pin

E. cross head guide

1555. Which of the following has most number of divisors?
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A. 99

B. 101

C. 182

D. 176
1556. Which of the following has high tensile strength ?
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A. heat treated rolled wires

B. plain hot rolled wires

C. cold drawn wires

D. all have same tensile strength

1557. Which of the following has been implicated due to sunlight_____________?
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A. Lymphoepithelioma

B. Verruca vulgaris

C. Junctional nevus

D. Basal cell carcinoma
1558. Which of the following has a ketogenic effect on livers______________?
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A. Androgen

B. Glucagon

C. Insulin

D. GH

1559. Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines ?
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A. Pebble mill

B. Rod mill

C. Tube mill

D. Compartment mill

1560. which of the following gives to rise two daughter cell during cell division?
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A. meiosis

B. mitosis

C. both a & b

D. none of these

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