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Recently added practice questions

6561. Placing cast under tap water is to be avoided as______________?
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A. H2O interferes with Crystallization of dihydrate

B. H2O inhibits polymerization of dental resin

C. Gypsum is slightly soluble in water and the surface of the cast will be eroded

D. H2O interferes with hygroscopic expansion

6562. Place the three largest producers of films globally in order______________?
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A. India China USA

B. India Nigeria USA

C. India USA Nigeria

D. USA India Nigeria

6563. Pivotal institutions_________________?
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A. all of the above

B. differ in traits and culture complexes from society to society

C. include government the economy education the family and religion

D. arise from fundamental human needs

6564. Piston rings are usually made of___________________?
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A. babbitt

B. cast iron

C. aluminium

D. phosphor bronze

E. carbon steel

6565. Pipes for bicycle frames are made of___________________?
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A. forged steel

B. hot rolled steel

C. cold rolled steel

D. carbon-chrome steel

E. cast steel

6566. Pipes carrying steam are generally made up of_____________?
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A. aluminium

B. cast iron

C. steel

D. copper

6567. Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is__________________?
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A. Green

B. Silver grey

C. Black

D. Yellow

6568. Pious-Caliphate lasted for about:__________ Years?
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A. Twenty Years

B. Thirty Years

C. Five Years

D. Eighteen Years

6569. Pineal gland situated in________?
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A. Neck

B. Brain

C. Stomach

D. Above kideys

6570. Pine is a __________?
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A. fruit

B. vegetable

C. Tree

D. Grass

6571. Pindborg tumor arises from:_________?
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A. Basal layer of cells

B. Stratum intermedium

C. Stratum corneum

D. Dental lamina

E. Both B & D
6572. Pilot Officer Rashid Minhas remembered on his 50th martyrdom anniversary on__________?
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A. 18th August 2021

B. 20th August 2021

C. None of these

D. 19th August 2021

6573. Pilocarpine_______________?
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A. Inhibits sweat and lacrimation

B. Lowers the intraocular pressure in glaucoma

C. Cleaved by acetylcholinesterase

D. Causes tachycardia

6574. Pigment present in red algae is_____________?
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A. phycocyanin

B. phycoerythrin

C. fucoxanthin

D. bilirubin

6575. Pigeon : Peace : : White flage : __________?
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A. Victory

B. Friendship

C. War

D. Surrender
6576. Piezometer tube is open to both ends mostly used to measure ____________________?
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A. absolute pressure

B. Atmospheric pressure

C. gauge pressure

D. Vacuum pressure

6577. Picture of which personality is on the 75 rupees note issued by State Bank of Pakistan?
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A. Fatima Jinnah

B. All of The Above

C. Allama Iqbal and Sir Syed Ahmed Khan

D. Muhammad Ali Jinnah

6578. Picture of Dorian Gray was written by__________________?
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A. Oscar Wild

B. George Eliot

C. Hardy

D. None of these

6579. Pick up the wrong statement?
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A. In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator.

B. Most serious drawback in using water as coolant in nuclear plants is its high vapour pressure

C. Slow or thermal neutrons have energy of the order or 0.025 eV

D. Fast neutrons have energies above 1000 eV

E. Fast reactor uses moderator
6580. Pick up the wrong statement about water tube boiler in comparison to fire tube boilers ______________________?
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A. former is used for high installed capacity

B. former generates steam at high pressure

C. former occupies less space for same power

D. rate of steam flow is more in former case

E. chances of explosion are less in former case

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