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Recently added practice questions

10021. During rainy season Wooden doors are difficult to open or closure because of ________ ?
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A. Imbibition

B. Plasmolysis

C. Osmosis

D. Diffusion

10022. During purification process of sewage the gas given off, is________________?
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A. All the above

B. Carbon dioxide

C. Ammonia

D. Hydrogen

10023. During purification process of sewage the gas given off, is________________?
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A. Hydrogen

B. Ammonia

C. Carbon dioxide

D. All the above
10024. During open circuit test of a transformer:
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A. primary is supplied rated kVA

B. primary is supplied rated voltage

C. primary is supplied current at reduced voltage

D. primary is supplied full-load current

10025. During filtration operation, the filtrate encounters the resistance of the ___________________?
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A. Cake

B. Filter medium

C. Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter

D. All A., B. and C.

E. ium

10026. During erection, the pile of length / is supported by a crane at a distance of________________?
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A. 0.7071

B. 0.207 /

C. 0.293 /

D. 0.793 /

10027. During conversion of glycerol to pyruvic acid, the first glycolytic intermediate to form is_______________?
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A. 2- phospho glyceric acid

B. 3- phospho glyceric acid

C. 3- phospho glyceralehyde

D. Dihydroxy acetone phosphate
10028. During coking of coal, the ash content (percentage)________________?
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A. Decreases

B. Increases

C. Remain constant

D. None of these

10029. During adiabatic expansion of gas___________________?
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A. Pressure remains constant

B. Temperature remains constant

C. None of these

D. Pressure is increased

10030. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?
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A. 4 tonnes/cm2

B. 16 tonnes/cm2

C. none of the above

D. 8 tonnes/cm2

E. 22 tonnes/cm2

10031. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?
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A. none of the above

B. 22 tonnes/cm2

C. 4 tonnes/cm2

D. 8 tonnes/cm2

E. 16 tonnes/cm2

10032. Durand line (border between Pakistan and Afghanistan) was drawn in:________?
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A. 1896

B. None of these

C. 1890

D. 1893
10033. DuraJomin contains___________________?
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A. 94% aluminium and 6% tin

B. 90% magnesium and 9% aluminium with some copper

C. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe

D. 10% aluminium and 90% copper

E. 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg

10034. Dungeon : Confinement : : Asylum : _________?
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A. Mercy

B. Refuge

C. Truancy

D. Remorse

10035. Due to which of the following fact, in India, aluminium is replacing copper ?
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A. Aluminium has lower resistivity than that of copper

B. Aluminium is available in plenty, cheaper and lighter than copper

C. Aluminium has less temperature co-efficient than copper

D. Aluminium is more ductile and malleable than copper

10036. Due to urbanization Pakistanis urban population increased from six million in 1951 to_____________?
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A. 40 million today

B. None of these

C. 60 million

D. 57 million
10037. Due to the action of ultraviolet rays of sun, human body produces___________________?
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A. Vitamin A

B. Vitamin E

C. Vitamin D

D. Vitamin B

10038. Due to circumferential action of the spiral in a spirally reinforced column________________?
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A. capacity of column is decreased

B. ductility of column reduces

C. capacity of column is decreased but ductility of column increases

D. both the capacity of column and ductility of column increase
10039. Ductile cast iron___________________?
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A. none of the above

B. is also known as chilled cast iron and is obtained by cooling rapidly. It is almost unmachinable

C. is produced by annealing process. It is soft, tough and easily machined metal

D. contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron

E. is produced by small additions of magnesium (or creium) in the ladle. Graphite is in nodular or spheroidal form and is well dispersed throughout the material
10040. Dual economies are countries ?
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A. with a modern manufacturing sector as well as traditional agriculture sector

B. with foreign owned and domestically owned capital

C. that specialize in labor intensive products more than capital intensive products

D. with double capital and labor/

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