8501. In a single tank system, the transfer function of _____________ to inlet flow rate is 1/(TS+1)?
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A. Outlet flow rate

B. Level

C. Both A. & B.

D. Neither A. nor B.

8502. In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raffinate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) ?
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A. 6.89

B. 8.89

C. 8.25

D. 10

8503. In a single evaporator system, the steam economy ________________ by creating vacuum in the evaporator?
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A. Decreases

B. May increase or decrease, depends on the vacuum

C. Increases

D. Remain constant

8504. In a sine wave the slope is constant_______?
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A. between 180 and 270

B. between 90 and 180

C. between 0 and 90

D. no where
8505. In a sine wave the slope is constant_______?
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A. between 90 and 180

B. between 0 and 90

C. no where

D. between 180 and 270

8506. In a silicon controlled rectifier, the load is connected___________?
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A. Across cathode

B. In series with anode

C. In series with cathode

D. Across anode

8507. In a silicon controlled rectifier, the load is connected___________?
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A. In series with cathode

B. In series with anode

C. Across cathode

D. Across anode

8508. In a shunting signal if the red band is inclined at 45 it indicates_________________?
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A. none of the above

B. stop

C. proceed cautiously

D. proceed
8509. In a shell and tube surface condenser____________?
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A. cooling water passes through the tubes and steam surrounds them

B. all of the above varying with situation

C. steam and cooling water mix to give the condensate

D. steam passes through the cooling tubes and cooling water surrounds them

8510. In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?
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A. Called tube pitch

B. Always less than the diameter of the tube

C. Called tube clearance

D. None of these

8511. In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is__________________?
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A. Always less than the diameter of the tube

B. Called tube clearance

C. None of these

D. Called tube pitch
8512. In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the ____________ variable?
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A. None of these

B. Controlled

C. Load

D. Manipulated

8513. In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the ______________ variable?
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A. Manipulated

B. None of these

C. Controlled

D. Load

8514. In a shaded pole motor, the shading coil usually consist of___________?
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A. a single turn of heavy copper wire which is short-circuited and carries only induced current

B. a multilayer fine gauge copper wire in parallel with running winding

C. none of the above

D. a single turn of heavy wire which is in parallel with running winding

8515. In a series resonant band-pass filter, a lower value of Q results in______________?
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A. a higher resonant frequency

B. a higher impedance

C. a smaller bandwidth

D. a larger bandwidth
8516. In a series circuit with unequal resistances______________?
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A. the lowest resistance has the highest voltage drop

B. the highest resistance has the highest voltage drop

C. the highest resistance has the most of the current through it

D. the lowest resistance has the highest current

8517. In a semiconductor, current conduction is due to________________?
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A. Only free electrons

B. Holes and free electrons

C. None of the above

D. Only holes

8518. In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
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A. 153

B. 163

C. 173

D. 143

8519. In a right-handed individual, where is a Brocas area most likely to be located?
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A. left hemisphere

B. right hemisphere

C. visual cortex

D. limbic system

8520. In a reversible process__________________?
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A. Tds = dE + dW

B. dW dE = Tds

C. Tds dW + dE >0

D. dE dW = Tds

8521. In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will________________?
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A. Become one fourth

B. Remain the same

C. Also be doubled

D. Be halved

8522. In a resistance furnace the atmosphere is_____________?
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A. deoxidising

B. reducing

C. neutral

D. oxidizing
8523. In a recession ?
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A. Unemployment is likely to be low

B. Growth is slow

C. Growth is negative

D. Prices are likely to increase

8524. In a radio receiver, we generally use .. oscillator as a local oscillator
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A. Wien-bridge

B. Crystal

C. Phase-shift

D. Hartley
8525. In a radio receiver, noise is generally developed at _______________?
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A. Audio stage

B. RF stage

C. IF stage

D. Receiving antenna

8526. In a purely inductive circuit__________?
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A. reactive power is zero

B. actual power is zero

C. apparent power is zero

D. none of above is zero

8527. In a purely inductive circuit__________?
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A. none of above is zero

B. actual power is zero

C. apparent power is zero

D. reactive power is zero

8528. In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will__________?
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A. be reduced by half

B. be four times as high

C. be reduced to one fourth

D. be doubled
8529. In a production function Y = F(L, K,N,E,T) Y is ?
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A. capital

B. natural resources

C. prevailing technology

D. national product
8530. In a pressurised water reactor (PWR), the___________________?
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A. Fuel is natural uranium and heavy water acts both as moderator & coolant

B. Coolant water boils in the core of the reactor

C. Coolant water is pressurised to prevent bulk boiling of water in the core

D. Use of moderator is not required

8531. In a power plant if the maximum demand on the plant is equal to the plant capacity, then
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A. diversity factor will be unity

B. plant reserve capacity will be zero

C. load factor will be nearly 60%

D. load factor will be unity

8532. In A Portrait of the Artist, what unique style does Joyce use ?
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A. chiasmus

B. vowel shift

C. stream of consciousness

D. acatalectic

8533. In a pile of length /, the points of suspension from ends for lifting it are located at______________?
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A. 0.207 1

B. 0.25 /

C. 0.333 /

D. 0.293 /

8534. In a phase shift oscillator, we use____________RC sections?
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A. Two

B. Four

C. None of the above

D. Three
8535. In a PERT chart___________________?
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A. all activities should be numbered

B. no activity is numbered

C. only selected activities are numbered

D. only important activities should be numbered

E. only critical activities are numbered

8536. In a Parliamentary form of government:
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A. The legislature is responsible to the executive

B. The executive is responsible to the legislature

C. The legislature controls the executives as well as the Judiciary

D. The legislature is responsible to the judiciary

8537. In a parliamentary democracy good press is expected to:
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A. Seek directions of the ruling party

B. Cash on sensational news

C. Build healthy public opinion

D. Be motivated by profit motives

8538. In a paper mill where constant speed is required________________?
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A. A.C. motors are preferred

B. synchronous motors are preferred

C. group drive is preferred

D. individual drive is preferred
8539. In a packed bed absorption column, the channelling will be noted by the ____________________?
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A. None of these

B. Increase in flow rate

C. Sharp drop in pressure drop

D. Sharp rise in pressure drop

8540. In a packed bed absorption column, the channelling will be noted by the ____________________?
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A. None of these

B. Increase in flow rate

C. Sharp drop in pressure drop

D. Sharp rise in pressure drop

8541. In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for______________?
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A. Fixing the tubes

B. Creating turbulence

C. Reducing scale deposition

D. Increasing pressure drop

8542. In A Mother, what does Mrs. Kearney make her daughter learn ?
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A. the piano

B. the English language

C. the violin

D. the Irish language
8543. In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?
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A. Dominant lethal genes in heterozygous individuals

B. Dominant lethal genes in homozygous individuals

C. Dominant epistasis

D. None of the above

8544. In a market, the group of consumers who are currently buying the companys product are classified as _____________?
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A. available market

B. penetrated market

C. target market

D. potential market

8545. In a manual shunt motor starter?
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A. over load relay is connected in series and no volt relay in parallel with the load

B. over load relay is connected in parallel and no volt relay in series with the load

C. over load relay and no volt relay are both connected in series with the load

D. over load relay and no volt relay are both connected in parallel with the load

8546. In a lead-acid battery the energy is stored in the form of___________?
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A. electrostatic energy

B. chemical energy

C. charged ions

D. electromagnetic energy

8547. In a historic test match (11-15 May), Pakistan have defeated Ireland by __________?
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A. 9 wickets

B. 180 runs

C. Five wickets

D. An innings & 15 runs

8548. In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate__________________?
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A. 75% by direct bearing and 25% through fastenings

B. fully by direct bearing

C. fully through fastenings

D. 50% by direct bearing and 50% through fastenings
8549. In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode.
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A. decelerates

B. any of the above

C. none of the above

D. accelerates
8550. In a good rimming steel_________________________?
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A. Carbon and silicon should be low

B. Silicon should be low but carbon should be high

C. Both silicon & carbon should be high

D. Silicon should be high but carbon should be low

Mcqs and online quiz for preparation:

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Federal Public Service Commission(FPSC):

FPSC exam is an mcqs based exam conducted for posts in federal government sector, Police services, Foreign Services and administrive servies etc. It checks the ability and skills of candidates in specific area. the weightage of post related subject is heigher in it and every post there are compulsory subject's mcqs as well like pak-study,islamiyat,english but it weightage is round 30% while 60 to 70% mcqs will be field specific. Federal Public Service commission posts are announced on first sunday of a month. so you will need to check their website on every first sunday of the month. www.fpsc.gov.pk is the official website where you can also see syllabus for your specific post as well so you will clearly see which subjects are included in your test and then came here to study and practice all those subjects before going to take your real test. Qualification required for most of the FPSC posts are bachelor's degree passed in 2nd division or grade C.

Provencial Public Service Commission:

There are also provincial public service commission tests for hiring beurocrats

Central Superior Services(CSS):

CSS exam is conducted by FPSC, its a very tough and competitive exam. It consists of round 12 total papers having 1200 total marks. There are 20 mcqs in each paper except essay and mathimatics and these mcqs can be studied on mcqpk.com as we have collected all these mcqs from past papers of css and all other papers and books as per relevant syllabus.

National Testing Service(NTS):

Its completely an mcqs based test, mostly there are 100 mcqs of total 100 marks paper. there are 4 to 5 options for each mcq and you have to pick the right option. There are two types of tests one is Nat (its of students taking admission in college/university) and the other on is GAT which is for postgrade admissions. NTS is the first mcqs based assesment organization that started in 2006. The chances of cheating in this test were very low because they give different type of question paper to each individual that sets closer to eachother in the test hall, But previously there were some leaks of this test on social media before paper time and that's why the paper got canceled due to this reason. Nowadays several other alternatives to NTS also exists like Pakistan testing service (pts), Educational testing service(ets) and Allied Testing Service(ats)

MPT (mcqs base preliminary test):

This is an mcqs test which is mandatory before qualifying for CSS exam. The candidate must pass this test before appearing in the real CSS exam. It all mcqs based test. It consists of total 200 mcqs from subjects like current affairs, pakistan study, islamic studies, everyday science, urdu, english grammer and vocabulary etc. You should prepare your self for this exam exactly like you are preparing for css, although its not the real CSS but later you will be giving CSS exam as well after passing this one. Here on mcqpk.com lots of mcqs are available for all these subjects and we have taken them from past papers and relevant subjects in order to make preparation easy for someone. you also can take the test here for free once you study so that you see how much prepare you are. The age limit for this exame is from 21 to 30 years. Previously round 13,008 candidates appear in css exam in which only 398 passed the real CSS exam and this makes a percentage of round 3.06% so normally every year very few people appear in this exam and within these very very small number of people clear this exam.