4168. Packer test ===> Soil Mechanics
4169. Painting ===> Building Construction
4170. Panaromic distortion ===> Surveying
4171. Pan-type mixer ===> Concrete tecnology
4172. Pappu’s theorem ===> Surveying
4173. Para-dichlorobenzene, ===> Enviromental
4174. Parallactic angle ===> Surveying
4175. Parallactic angle ===> Surveying
4176. Parallax ===> Surveying
4177. Parallax elimination ===> Surveying
4178. Parallax ===> Surveying
4179. Parallax absolute ===> Surveying
4180. Parallax angles ===> Surveying
4181. Parallax bar ===> Surveying
4182. Parallax equation ===> Surveying
4183. Parallax linear horizontal ===> Surveying
4184. Parallax measurement ===> Surveying
4185. Parallax stereoscopic ===> Surveying
4186. Parallel axes theorem ===> Physics XI
4187. Parallel plate micrometer ===> Surveying
4188. Paramagnetism ===> Physics XII
4189. Parapet wall ===> Building Construction
4190. Parapet wall ===> Highway Engineering
4191. Paraxial rays ===> Physics XI
4192. Parking ===> Highway Engineering
4193. Parking facilities ===> Highway Engineering
4194. Parking standards ===> Highway Engineering
4195. Parking study ===> Highway Engineering
4196. Parkways ===> Highway Engineering
4197. Parliamentary hinge ===> Building Construction
4198. Partial safety factors ===> RCC
4199. Partial safety factors collapse, ===> RCC
4200. Partial safety factors collapse, ===> RCC
4201. Partial safety factors serviceability, ===> RCC
4202. Partial safety factors strength of materials, ===> RCC
4203. Partially sub-merged orifice, ===> Fluid Mechanics
4204. Particle interference ===> Concrete tecnology
4205. Particle shape of aggregate ===> Concrete tecnology
4206. Particle size distribution ===> Highway Engineering
4207. Particle theory ===> Surveying
4208. Particle-size analysis ===> Soil Mechanics
4209. Particle-size curve ===> Soil Mechanics
4210. Particulates, ===> Enviromental
4211. Partitions ===> Building Construction
4212. Pascal law of pressure ===> Physics XI
4213. Pascal unit of pressure ===> Physics XI
4214. Pascal’s law, ===> Fluid Mechanics
4215. Paschen series ===> Physics XII
4216. Paschen's law ===> Physics XII
4217. Pass ===> Surveying
4218. Passenger car ===> Highway Engineering
4219. Passenger car equivalents ===> Highway Engineering
4220. Passenger car units-urban roads ===> Highway Engineering
4221. Passing ability ===> Concrete tecnology
4222. Passing sight distance ===> Highway Engineering
4223. Passivating layer ===> Concrete tecnology
4224. Passive state ===> Soil Mechanics
4225. Paste ===> Concrete tecnology
4226. Patching ===> Highway Engineering
4227. Pauli exclusion principle ===> Physics XII
4228. Pavement condition survey ===> Highway Engineering
4229. Pavement design ===> Highway Engineering
4230. Pavement design, flexible -, rigid ===> Soil Mechanics
4231. Pavement design, flexible ===> Soil Mechanics
4232. Pavement evaluation ===> Highway Engineering
4233. Pavement markings ===> Highway Engineering
4234. Pavement overlays , ===> Highway Engineering
4235. Pavement width ===> Highway Engineering
4236. pavements , ===> Highway Engineering
4237. pavements , ===> Highway Engineering
4238. Paving machine ===> Highway Engineering
4239. P-code ===> Surveying
4240. Pebble dash ===> Concrete tecnology
4241. Pedestrain traffic management measures ===> Highway Engineering
4242. Pedestrian ===> Highway Engineering
4243. Pedestrian behaviour ===> Highway Engineering
4244. Pedestrian characteristics ===> Highway Engineering
4245. Pedestrian crossings , ===> Highway Engineering
4246. Pedestrian leveIs of service ===> Highway Engineering
4247. Pedestrian precints ===> Highway Engineering
4248. Pedestrian precints ===> Highway Engineering
4249. Pedestrian provisions for ===> Highway Engineering
4250. Pedestrian safety ===> Highway Engineering
4251. Pedestrian signals ===> Highway Engineering
4252. Pedestrian volume study ===> Highway Engineering
4253. Pegs ===> Surveying
4254. Pel ===> Surveying
4255. Pelican crossing , ===> Highway Engineering
4256. Peltier effect ===> Physics XII
4257. Pelton wheel, ===> Fluid Mechanics
4258. Pendulam ===> Physics XI
4259. Pendulam physical ===> Physics XI
4260. Pendulam time period – ===> Physics XI
4261. Pendulam torsional ===> Physics XI
4262. Penetration macadam ===> Highway Engineering
4263. Penetration test ===> Concrete tecnology
4264. Penetration test ===> Highway Engineering
4265. Penetration test ===> Soil Mechanics
4266. Pentagraph , ===> Surveying
4267. Percent finer size ===> Soil Mechanics
4268. Percentage air voids ===> Soil Mechanics
4269. Perception distance ===> Highway Engineering
4270. Perception time ===> Highway Engineering
4271. Percussion drilling ===> Soil Mechanics
4272. Perforated cover plates, ===> Steel Structure
4273. Perihelion ===> Surveying
4274. Perimeter, wetted, ===> Fluid Mechanics
4275. Peripheral vision ===> Highway Engineering
4276. Perlite ===> Concrete tecnology
4277. Permanent adjustments , ===> Surveying
4278. Permanent adjustments , order of ===> Surveying
4279. Permanent deformation ===> Highway Engineering
4280. Permeability ===> Concrete tecnology
4281. Permeability concrete ===> Concrete tecnology
4282. Permeability -, coefficient of ===> Soil Mechanics
4283. Permeability -, factors affecting ===> Soil Mechanics
4284. Permeability -, field determination of ===> Soil Mechanics
4285. Permeability -, lab, determinations of ===> Soil Mechanics
4286. Permeability -, of stratified soil ===> Soil Mechanics
4287. Permeability ===> Physics XII
4288. Permeability ===> Soil Mechanics
4289. Permeability capillarity test ===> Soil Mechanics
4290. Permeability, ===> Steel Structure
4291. Permeability, normal, ===> Steel Structure
4292. Permeability, small, ===> Steel Structure
4293. Permeable formwork , ===> Concrete tecnology
4294. Permissible limits for solids, ===> RCC
4295. Permissible stress ===> Concrete tecnology
4296. permissible, ===> RCC
4297. Permittivity ===> Physics XII
4298. Permittivity relative ===> Physics XII
4299. Peroxyacetylenitrate (PAN), ===> Enviromental
4300. Perpend , ===> Building Construction
4301. Persian roads ===> Highway Engineering
4302. PERT ===> Building Construction
4303. Pesticides, ===> Enviromental
4304. Petrol engine ===> Physics XII
4305. pF value ===> Soil Mechanics
4306. pH ===> Concrete tecnology
4307. pH effect of carbonation ===> Concrete tecnology
4308. pH phenolphthalein ===> Concrete tecnology
4309. pH pore water ===> Concrete tecnology
4310. pH sea water ===> Concrete tecnology
4311. pH value, ===> Enviromental
4312. Phase ===> Physics XI
4313. Phase sudden change on reflection ===> Physics XI
4314. Phase error ===> Surveying
4315. Phenols, ===> Enviromental
4316. Phosphorus cycle, ===> Enviromental
4317. Phosphorus removal, ===> Enviromental
4318. Photo plumb point ===> Surveying
4319. Photo triangulation ===> Surveying
4320. Photochemical oxidants, ===> Enviromental
4321. Photocurrent ===> Physics XII
4322. Photoelectric effect ===> Physics XI
4323. Photoelectric effect ===> Physics XII
4324. Photoelectron ===> Physics XII
4325. Photogrammetric map ===> Surveying
4326. Photogrammetry, aerial ===> Surveying
4327. Photographic base ===> Surveying
4328. Photographic base maps ===> Surveying
4329. Photographic maps ===> Surveying
4330. Photo-interpretation ===> Surveying
4331. Photo-interpretation equipment ===> Surveying
4332. Photometer ===> Physics XI
4333. Photometry ===> Physics XI
4334. Photon ===> Physics XII
4335. Photon thcory of light ===> Physics XII
4336. Photons ===> Surveying
4337. Photo-theodolite ===> Surveying
4338. Phreatic line ===> Soil Mechanics
4339. Physical characteristics of vehicles ===> Highway Engineering
4340. Physical permeability ===> Soil Mechanics
4341. Physical quantity, ===> Fluid Mechanics
4342. Physical treatment, ===> Enviromental
4343. Picture control ===> Surveying
4344. Picture element ===> Surveying
4345. Piecewise stretch ===> Surveying
4346. Pier foundation ===> Building Construction
4347. Piers ===> Building Construction
4348. PIEV time ===> Highway Engineering
4349. Piezometer, ===> Fluid Mechanics
4350. Piezometric head ===> Soil Mechanics
4351. Piggy-back system ===> Highway Engineering
4352. Pigments ===> Building Construction
4353. Pigments ===> Concrete tecnology
4354. Pile foundation ===> Soil Mechanics
4355. Piles ===> Building Construction
4356. Piles foundation ===> Building Construction
4357. Pin connections, ===> Steel Structure
4358. Pin connections, advantages, ===> Steel Structure
4359. Pin connections, disadvantages, ===> Steel Structure
4360. Pin lewis ===> Building Construction
4361. Pins, ===> Steel Structure
4362. Piosson's distribution ===> Highway Engineering
4363. Pipe bend, ===> Fluid Mechanics
4364. Pipe Network, ===> Fluid Mechanics
4365. pipes ===> Concrete tecnology
4366. Pipes branched, ===> Fluid Mechanics
4367. Pipes for pumping ===> Concrete tecnology
4368. Pipes in parallel, ===> Fluid Mechanics
4369. Pipes in series, ===> Fluid Mechanics
4370. Pipes syphon, ===> Fluid Mechanics
4371. Pipette method ===> Soil Mechanics
4372. Piping ===> Soil Mechanics
4373. Pitch ===> Physics XI
4374. Pitch of rivets, ===> Strenngth of Material
4375. Pitched roofs ===> Building Construction
4376. Pi-theorem, ===> Fluid Mechanics
4377. Pitot-tube, ===> Fluid Mechanics
4378. Pixels , ===> Surveying
4379. Placement water content ===> Soil Mechanics
4380. Placing of concrete ===> Concrete tecnology
4381. Placing SCC ===> Concrete tecnology
4382. Planck ===> Physics XII
4383. Planck constant ===> Physics XII
4384. Planck-Kelvin second law of thermodynamics ===> Physics XII
4385. Plane table ===> Surveying
4386. Plane table description ===> Surveying
4387. Plane tabling ===> Surveying
4388. Plane tabling methods ===> Surveying
4389. Planets ===> Surveying
4390. Planimeter ===> Surveying
4391. Planimeter adjustments of ===> Surveying
4392. Planimeter constant of ===> Surveying
4393. Planimeter construction of ===> Surveying
4394. Planimeter digital ===> Surveying
4395. Planimeter theory of ===> Surveying
4396. Planimeter working of ===> Surveying
4397. Planning measures for safety ===> Highway Engineering
4398. Planning of roads ===> Highway Engineering
4399. Planning process for prevention of pollution, ===> Enviromental
4400. Plasma ===> Physics XII
4401. Plaster slab partitions ===> Building Construction
4402. Plastering ===> Building Construction
4403. Plastic equilibrium ===> Soil Mechanics
4404. Plastic failure ===> Soil Mechanics
4405. Plastic limit ===> Soil Mechanics
4406. Plastic method, ===> RCC
4407. Plastic method, lower bound method, ===> RCC
4408. Plastic method, upper bound method, ===> RCC
4409. Plastic settlement ===> Concrete tecnology
4410. Plastic shrinkage ===> Concrete tecnology
4411. Plasticity chart ===> Soil Mechanics
4412. Plasticity index ===> Highway Engineering
4413. Plasticity index ===> Soil Mechanics
4414. Plate bearing test ===> Highway Engineering
4415. Plate girder (riveted), ===> Steel Structure
4416. Plate girder (riveted), allowable stress in bending ===> Steel Structure
4417. Plate girder (riveted), allowable stress in shear, ===> Steel Structure
4418. Plate girder (riveted), angles, ===> Steel Structure
4419. Plate girder (riveted), area of flanges, ===> Steel Structure
4420. Plate girder (riveted), assumption in design, ===> Steel Structure
4421. Plate girder (riveted), bearing, ===> Steel Structure
4422. Plate girder (riveted), buckling of web, ===> Steel Structure
4423. Plate girder (riveted), connections, ===> Steel Structure
4424. Plate girder (riveted), curtailment of plates, ===> Steel Structure
4425. Plate girder (riveted), depth, ===> Steel Structure
4426. Plate girder (riveted), design of flanges, ===> Steel Structure
4427. Plate girder (riveted), design of web plate, ===> Steel Structure
4428. Plate girder (riveted), diagonal buckling of web, ===> Steel Structure
4429. Plate girder (riveted), economical depths, ===> Steel Structure
4430. Plate girder (riveted), elements, ===> Steel Structure
4431. Plate girder (riveted), flange angles to web, ===> Steel Structure
4432. Plate girder (riveted), flange plates to flange, ===> Steel Structure
4433. Plate girder (riveted), flange, ===> Steel Structure
4434. Plate girder (riveted), flanges, ===> Steel Structure
4435. Plate girder (riveted), gross, ===> Steel Structure
4436. Plate girder (riveted), horizontal, ===> Steel Structure
4437. Plate girder (riveted), net, ===> Steel Structure
4438. Plate girder (riveted), self-weight, ===> Steel Structure
4439. Plate girder (riveted), splice, ===> Steel Structure
4440. Plate girder (riveted), vertical, ===> Steel Structure
4441. Plate girder (riveted), web stiffeners, ===> Steel Structure
4442. Plate girder (riveted), web, ===> Steel Structure
4443. Plate girder (welded), ===> Steel Structure
4444. Plate level test ===> Surveying
4445. Plate load test ===> Soil Mechanics
4446. Plateau ===> Surveying
4447. Platen ===> Concrete tecnology
4448. Platforms ===> Surveying
4449. Platinum resistance thermometer ===> Physics XII
4450. Plinth ===> Building Construction
4451. Plotting the soundings ===> Surveying
4452. Plotting traverse survey ===> Surveying
4453. Plum concrete ===> Concrete tecnology
4454. Plumb bob , ===> Surveying
4455. Plumb line ===> Surveying
4456. Plumb rule ===> Building Construction
4457. Plumbing fork ===> Surveying
4458. PMGSY ===> Highway Engineering
4459. p-n junction ===> Physics XII
4460. p-n junction as a rectifier ===> Physics XII
4461. Pneumatic caissons ===> Building Construction
4462. Pneumatically projected concrete ===> Concrete tecnology
4463. point , ===> Surveying
4464. Point count method ===> Concrete tecnology
4465. Point data ===> Surveying
4466. Point location ===> Surveying
4467. Point of curve ===> Surveying
4468. Point of tangency ===> Surveying
4469. Point positioning ===> Surveying
4470. Pointed arch ===> Building Construction
4471. Pointers ===> Surveying
4472. Pointing ===> Building Construction
4473. Point-in-polygon ===> Surveying
4474. Poise, ===> Fluid Mechanics
4475. Poiseuille equation ===> Physics XI
4476. Poiseuille’s equation ===> Soil Mechanics
4477. Poission’s ratio ===> Soil Mechanics
4478. Poisson’s ratio ===> Concrete tecnology
4479. Poisson’s ratio ===> Physics XI
4480. Poisson’s ratio, ===> RCC
4481. Poisson’s ratio, ===> Strenngth of Material
4482. Poker vibrator ===> Concrete tecnology
4483. Polar axis ===> Surveying
4484. Polar distance ===> Surveying
4485. Polar material ===> Physics XII
4486. Polar Modulus, ===> Strenngth of Material
4487. Polar moment of inertia, ===> Strenngth of Material
4488. Polaris ===> Surveying
4489. Polarization of dielectrics ===> Physics XII
4490. Polaroids ===> Physics XI
4491. Pole star ===> Surveying
4492. Poles ===> Surveying
4493. Pollution , ===> Highway Engineering
4494. Pollution prevention ideas in plant operation, ===> Enviromental
4495. Pollution prevention strategies in plant design, ===> Enviromental
4496. Pollution problems of the petrochemical industry, ===> Enviromental
4497. PolyChlorinated Biphenyls (PCBs), ===> Enviromental
4498. Polygon-on-polygon ===> Surveying
4499. Polymer bonding agent ===> Concrete tecnology
4500. Polymer concrete , ===> Concrete tecnology
4501. Polymer mortar ===> Concrete tecnology
4502. Polynuclear aromatic hydrocarbons, ===> Enviromental
4503. Ponds and lagoons, ===> Enviromental
4504. Poorly graded soil ===> Soil Mechanics
4505. Population inversion ===> Physics XII
4506. Pore fillers ===> Concrete tecnology
4507. Pore pressure parameters ===> Soil Mechanics
4508. Porosity ===> Soil Mechanics
4509. Portland cement ===> Concrete tecnology
4510. Position determination principle ===> Surveying
4511. positive bending ===> RCC
4512. Positive column ===> Physics XII
4513. Post hole auger ===> Building Construction
4514. Pot holes , ===> Highway Engineering
4515. Potential change in rigid body motion ===> Physics XI
4516. Potential elastic ===> Physics XI
4517. Potential electric ===> Physics XII
4518. Potential energy, ===> Fluid Mechanics
4519. Potential energy, electric ===> Physics XII
4520. Potential excitation ===> Physics XII
4521. Potential flow, ===> Fluid Mechanics
4522. Potential function, ===> Fluid Mechanics
4523. Potential head, ===> Fluid Mechanics
4524. Potential ionization ===> Physics XII
4525. Potential of a spring ===> Physics XI
4526. Potential sparking ===> Physics XII
4527. Potentiometer ===> Physics XII
4528. Powder type SCC ===> Concrete tecnology
4529. Power in AC circuits ===> Physics XII
4530. Power in electric circuit ===> Physics XII
4531. Power shovel ===> Highway Engineering
4532. Power transmission : ===> Fluid Mechanics
4533. Power transmission : through nozzle, ===> Fluid Mechanics
4534. Power transmission : through pipes, ===> Fluid Mechanics
4535. Power transmitted by shafts, ===> Strenngth of Material
4536. Pozzolamic Materials ===> Concrete tecnology
4537. Pozzolanic activity ===> Concrete tecnology
4538. Pozzolema cement ===> Concrete tecnology
4539. Pradhan mantri gram Sadak Yojna (PMGSY) ===> Highway Engineering
4540. Prandtl’s mixing length, ===> Fluid Mechanics
4541. Precast hollow blocks ===> Building Construction
4542. Precession ===> Surveying
4543. Precision ===> Surveying
4544. Preconsolidated soil ===> Soil Mechanics
4545. Preconsolidation pressure ===> Soil Mechanics
4546. Preliminary evaluation of the pollution prevention, ===> Enviromental
4547. Preliminary survey ===> Highway Engineering
4548. Pre-mix carpet ===> Highway Engineering
4549. Prepacked concrete ===> Concrete tecnology
4550. Preplaced aggregate concrete ===> Concrete tecnology
4551. Presbyopia ===> Physics XI
4552. Present serviceability index ===> Highway Engineering
4553. Pre-soaking of aggregate ===> Concrete tecnology
4554. Pressure ===> Physics XI
4555. Pressure atmospheric ===> Physics XI
4556. Pressure excess, in a soap bubble ===> Physics XI
4557. Pressure excess, inside a drop ===> Physics XI
4558. Pressure unit of ===> Physics XI
4559. Pressure variation with height ===> Physics XI
4560. Pressure bulb ===> Soil Mechanics
4561. Pressure deficiency ===> Soil Mechanics
4562. Pressure diagram ===> Fluid Mechanics
4563. Pressure drag, ===> Fluid Mechanics
4564. Pressure force, ===> Fluid Mechanics
4565. Pressure head, ===> Fluid Mechanics
4566. Pressure method ===> Concrete tecnology
4567. Pressure net ===> Soil Mechanics
4568. Pressure, consolidation -, effective ===> Soil Mechanics
4569. Pressure, consolidation -, excess hydrostatic ===> Soil Mechanics
4570. Pressure, consolidation -, intergranular ===> Soil Mechanics
4571. Pressure, consolidation -, neutral ===> Soil Mechanics
4572. Pressure, consolidation -, preconsolidation ===> Soil Mechanics
4573. Pressure, consolidation -, seepage ===> Soil Mechanics
4574. Pressure, consolidation -, uplift ===> Soil Mechanics
4575. Pressure, consolidation ===> Soil Mechanics
4576. Pressure: ===> Fluid Mechanics
4577. Pressure: absolute, ===> Fluid Mechanics
4578. Pressure: atmospheric, ===> Fluid Mechanics
4579. Pressure: gauge, ===> Fluid Mechanics
4580. Pressure: vacuum, ===> Fluid Mechanics
4581. Pre-stressed concrete ===> Highway Engineering
4582. Pre-timed signals ===> Highway Engineering
4583. Pre-treatment ===> Soil Mechanics
4584. Prevost theory of heat exchange ===> Physics XII
4585. Primary sedimentation, ===> Enviromental
4586. Primary treatment, ===> Enviromental
4587. Prime coat ===> Highway Engineering
4588. Prime vertical ===> Surveying
4589. Priming, ===> Fluid Mechanics
4590. Principal axes of section, ===> Steel Structure
4591. Principal base ===> Surveying
4592. Principal planes ===> Soil Mechanics
4593. Principal planes, – Strain, ===> Strenngth of Material
4594. Principal planes, – Stress, ===> Strenngth of Material
4595. Principal planes, ===> Strenngth of Material
4596. Principal rafter ===> Building Construction
4597. Principal stress ===> Soil Mechanics
4598. PrincipIes of intersection design ===> Highway Engineering
4599. Principle of complementary stresses, ===> Strenngth of Material
4600. Principle of conservation of : ===> Fluid Mechanics
4601. Principle of conservation of : energy, ===> Fluid Mechanics
4602. Principle of conservation of : momentum, ===> Fluid Mechanics
4603. Principle of least squares ===> Surveying
4604. Priorities in hazardous waste management, ===> Enviromental
4605. Prism ===> Physics XI
4606. Prism angle of minimum deviation ===> Physics XI
4607. Prism square ===> Surveying
4608. Prism test ===> Concrete tecnology
4609. Prismatic astrolabe ===> Surveying
4610. Prismatic compass ===> Surveying
4611. Prismoid ===> Surveying
4612. Prismoidal correction ===> Surveying
4613. Prismoidal formula ===> Surveying
4614. Probability curve ===> Surveying
4615. Process adiabatic ===> Physics XII
4616. Process cyclie ===> Physics XII
4617. Process design considerations, ===> Enviromental
4618. Process irreversible ===> Physics XII
4619. Process isobaric ===> Physics XII
4620. Process isothemal ===> Physics XII
4621. Process quasi-static ===> Physics XII
4622. Process reversible ===> Physics XII
4623. Processing techniques, ===> Enviromental
4624. Proctor needle ===> Soil Mechanics
4625. Proctor test, modified -, standard ===> Soil Mechanics
4626. Proctor test, modified ===> Soil Mechanics
4627. Proctor's compaction ===> Highway Engineering
4628. products ===> Surveying
4629. Products of hydration ===> Concrete tecnology
4630. Prohibitive signs ===> Highway Engineering
4631. Project cost ===> Building Construction
4632. Project preparation ===> Highway Engineering
4633. Projectile ===> Physics XI
4634. Projection systems ===> Surveying
4635. Prolate spheroid ===> Surveying
4636. Proof resilience, ===> Strenngth of Material
4637. Propagation of pressure waves, ===> Fluid Mechanics
4638. Proper time interval ===> Physics XII
4639. Properties of fluids, ===> Fluid Mechanics
4640. Propped cantilevers and beams, ===> Strenngth of Material
4641. Proximity analysis ===> Surveying
4642. Pseudo force ===> Physics XI
4643. Pseudo-kinematic technique ===> Surveying
4644. Pseudo-range ===> Surveying
4645. Pseudo-static surveying ===> Surveying
4646. Psychological widening ===> Highway Engineering
4647. Public trans~ort study ===> Highway Engineering
4648. Pull correction ===> Surveying
4649. Pull-out test ===> Concrete tecnology
4650. Pulse velocity ===> Concrete tecnology
4651. Pumice ===> Concrete tecnology
4652. Pumpability ===> Concrete tecnology
4653. Pumped concrete ===> Concrete tecnology
4654. Pumping concrete ===> Concrete tecnology
4655. Pumping concrete blockage ===> Concrete tecnology
4656. Pumping concrete distance ===> Concrete tecnology
4657. Pumping concrete friction ===> Concrete tecnology
4658. Pumping concrete height ===> Concrete tecnology
4659. Pumping in concrete ===> Highway Engineering
4660. Pumping, in laser ===> Physics XII
4661. Pumping-in test ===> Soil Mechanics
4662. Pumping-out test ===> Soil Mechanics
4663. Pumps ===> Concrete tecnology
4664. Pumps, ===> Enviromental
4665. Purlins, ===> Steel Structure
4666. Pycnometer ===> Soil Mechanics
4667. Pyrament cement ===> Concrete tecnology
4668. Quadrantal bearing ===> Surveying
4669. Quadrilateral ===> Surveying
4670. Quadrilateral with central station ===> Surveying
4671. Quality assurance , ===> Highway Engineering
4672. Quality control ===>