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Recently added practice questions

11841. A specific part of an arithmetic & logic unit that is used to perform the operation of multiplication is__________________?
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A. Multivibrator

B. Multiplener

C. Quantization

D. Multiplier
11842. A specie with maximum number of unpaired electrons ?
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A. F

B. HF

C. NH-2

D. H2O

11843. A source follower using an FET usually has a voltage gain which is___________?
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A. greater than +100

B. about -10

C. slightly less than unity but positive

D. exactly unity but negative

11844. A solution with reasonably permanent pH is called a/an _______________ solution?
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A. Non-ideal

B. Colloidal

C. Ideal

D. Buffer
11845. A solution is made by dissolving 1 kilo mole of solute in 2000 kg of solvent. The molality of the solution is_________________?
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A. 1

B. 2

C. 0.05

D. 0.5
11846. A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))_____________?
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A. M ln(Xo/XF)

B. MXo ln(Xo/XF)

C. M(Xo/XF)

D. M(Xo XF)

11847. A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))_____________?
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A. M(Xo/XF)

B. M ln(Xo/XF)

C. M(Xo XF)

D. MXo ln(Xo/XF)
11848. A soil is categorized as saline when EC of saturation extract is______________________?
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A. 0.4dsm-1

B. 0.4 4.0 dsm-1

C. >4dsm-1
11849. A software ______________ provides the framework from which a comprehensive plan for software development can be established?
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A. product

B. people

C. none of the mentioned

D. process
11850. A social system_____________?
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A. illustrates how social relationships work in a group

B. all of the above

C. is a concept

D. is a model

11851. A smallest telecom player in Pakistan is _________?
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A. Zong

B. Jazz

C. Telenor

D. Ufone
11852. A small Ca+2 binding protein that modifies the activity of many enzymes and other proteins in response to changes of Ca+2 concentration is known as______________?
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A. Kinesin

B. Calmodulin

C. Collagen

D. Cycline

11853. A six- year molar begins to calcify at______________?
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A. 1 years after birth

B. Six months IU

C. At birth

D. 3 years age

11854. A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will_____________?
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A. will be of 5 xiVHz

B. will be of 5 Hz

C. will be of v Hz 5

D. will be zero

11855. A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is_________________?
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A. 25 cm

B. 35 cm

C. 20 cm

D. 30 cm
11856. A single phase ac dc converter is also known as____________?
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A. rectifier

B. regulator

C. chopper

D. inverter

11857. A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of_________________?
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A. 20.2

B. 2

C. 20.8

D. None of these

11858. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be________________?
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A. 3-Feb

B. 8-May

C. 8/5

D. 2-Mar

11859. A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2, the area of steel required, is___________________?
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A. 17 cm2

B. 14 cm 2

C. 15 cm2

D. 16 cm2
11860. A simplified picture of economic reality, an abstract generalization ?
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A. None

B. Economic principle

C. Economic theory

D. Economic model

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