Name two free floating hydrophytes with offsets.

Name two free floating hydrophytes with offsets. 
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Answer :

Ans: Pistia, Eichhornia 
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If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed. (A) R/10 (B) R/15 (C) R/20 (D) R/25

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In chain surveying tie lines are primarily provided (A) To check the accuracy of the survey (B) To take offsets for detail survey(C) To avoid long offsets from chain lines (D) To increase the number of chain lines

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If the radius of a simple curve is 600 m, the maximum length of the chord for calculating offsets, is taken (A) 15 m (B) 20 m (C) 25 m (D) 30 m

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The approximate formula for radial or perpendicular offsets from the tangent, is (A) x/2R (B) x²/2R (C) x/R (D) x²/R

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For taking offsets with an optical square on the right hand side of the chain line, it is held (A) By right hand upside down (B) By left hand upright (C) By right hand upright (D) By left hand upside down

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Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to (A) 14.14 m (B) 28.28 m (C) 200 m (D) None of these

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Short offsets are measured with (A) An ordinary chain(B) An invar tape (C) A metallic tape (D) A steel tape

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If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping (A) It is possible to set offsets correctly on east side (B) It is possible to set offsets correctly on east side (C) It is not possible to set offsets correctly on west side (D) It is possible to set offsets correctly on both sides

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Check lines (or proof lines) in Chain Surveying, are essentially required (A) To plot the chain lines (B) To plot the offsets (C) To indicate the accuracy of the survey work (D) To increase the out-turn

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Setting out of Lemniscate transition curves, is done with (A) Perpendicular offsets (B) Radial offsets (C) Deflection angles (D) Polar deflection angles

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Offsets are produced by (1) Meiotic divisions (2) Mitotic divisions (3) Parthenocarpy (4) Parthenogenesis

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What are offsets? How are they taken and recorded? Explain with sketch.

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Last Answer : Offsets are lateral measurement to the base line. They are Located by judgment if short And by instruments (optical square or cross staff) if long and measured by metallic tape and shown with their chainages on base line

State four instruments used for setting offsets.

Description : State four instruments used for setting offsets.

Last Answer : i) Instruments used for setting offsets: 1)Chain 2)Tape 3) Open & French Cross Staff 4) Circular & Indian Optical Square  ii) Principle of optical square: The angle between the first incident ray and the last reflected ray is twice to that of angle between two mirrors in optical square.

State and describe the types of offsets.

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State any four types of offsets and define them.

Description : State any four types of offsets and define them. 

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Explain the procedure of curve setting by method of offsets from long chord

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The trees occurring in two stories is the characteristic feature of: (a) Temperate deciduous forest (b) Tropical savannah (c) Grassland (d) Coniferous forest

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A plant having two types of haploid structures in its life cycle is known as: (a) Haplobiontic (b) Diplobiontic (c) Haplontic (d) Diplontic

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In angiosperms regarding development of microgametophyte each microspore mother cell undergoes (a) Mitosis to produce 4 microspores (b) Two successive mitosis to form 4 microspores (c) Two successive meiotic division to form 4 microspores (d) Meiosis to produce 4 haploid microspores

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