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You Are On Multi Choice Question Bank SET 849

42451. The ratio of the head recovered to the head put in, is known as





42452. The level of the fioor of a syphon aqueduct can be obtained





42453. A fall which maintains its depth, is





42454. The water face of the guide banks, is protected by






42455. Effective precipitation for a crop may be defined as





42456. If average particle size of the silt in millimetres is m, the Lacey's silt factor f is proportional to






42457. Lane's weighted creep theory assumes






42458. Disposal of extra excavated earth of canals, is utilised to provide a spoil bank on





42459. If A is the area of the surface, x is the depth of its C.G. from the surface of the water and ω is the density of water, then





42460. The included angle in Acme thread is





42461. According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is





42462. The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than





42463. The field capacity of a soil depends upon





42464. Finally formed berms in canals are provided for





42465. An outlet is said to be proportional if its flexibility, is





42466. The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is






42467. For standing crops in undulating sandy fields, the best method of irrigation, is






42468. In a syphon aqueduct





42469. Choose the best suited type of screw thread for applications for stresses on threadsinone direction only





42470. Garnett's diagrams are used for graphical solution of design equations of a canal by


42471. A current meter measures the velocity of flow, if it is held





42472. In a concrete canal the approximate permissible velocity of water should not exceed






42473. Pick up the correct sequence of the part of a canal system from the following





42474. A counter berm is





42475. For diversion of flood water of rivers, the type of canal constructed, is





42476. To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls






42477. According to Lacey, in regime conditions





42478. Process of meandering is due to





42479. For cereal crops the most commonly adopted method of irrigation, is





42480. While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3





42481. The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as





42482. Lacey's equation for calculating flood discharge in rivers, is





42483. The most suitable section of a lined canal, is






42484. To hold hydraulic jumps, baffle walls are provided in





42485. Borrow pits should preferably be located in





42486. Irrigation canals are generally aligned along





42487. The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of





42488. From coefficient of spring is defined as





42489. In a laminated spring,the various strips are made of different length for the following reason





42490. The diameter of shaft in any power transmission system is proportional to





42491. Excessive back and forth movement of the crankshaft is prevented by





42492. Piston pins are usually either a press fit in the rod or





42493. If no resistance is encountered by displacement,such a substance is known as





42494. The first Indian railway was laid in






42495. The weight of the rails depends upon






42496. Pressure coefficient is the ratio of pressure force to





42497. A stream line is defined as the line





42498. Minimum depth of ballast prescribed of B.G. trunk lines of Indian Railways, is






42499. Boxing of ballast is done





42500. Best ballast contains stones varying in size from





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