The amplitude of a wave is ______. (i) the distance the wave moves in one second (ii). the distance the wave moves in one time period of the wave (iii) the maximum distance moved by the medium particles on either side of the mean position* (iv) the distance equal to one wave length

The amplitude of a wave is ______.

(i) the distance the wave moves in one second
(ii). the distance the wave moves in one time period of the wave
(iii) the maximum distance moved by the medium particles on either side of the mean
position*
(iv) the distance equal to one wave length
by

1 Answer

Answer :

iii) the maximum distance moved by the medium particles on either side of the mean
position*
by

Related questions

The frequency of a wave travelling at a speed of 500 ms-1 is 25 Hz. Its time period will be ______. (i) 20 s (ii) 0.05 s (iii) 25 s (iv) 0.04 s

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How many nos. of sleepers should be loosened either side of the proposed weld? (i) 3 sleepers (ii) 5 sleepers.* (iii) 2 sleepers (iv) 4 sleepers

Description : How many nos. of sleepers should be loosened either side of the proposed weld? (i) 3 sleepers (ii) 5 sleepers.* (iii) 2 sleepers (iv) 4 sleepers

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Description : The physical quantity, which oscillates in most waves, is (i) mass (ii) energy (iii) Amplitude* (iv) wavelength

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The maximum displacement of a vibrating body on either side of its central position is known as _______________. a)amplitude b)frequency c)time period d)hertz

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If digital DRT is calibrated for 300 mm longitudinal wave using 00 double crystal probe then 60kg rail ---------peak will appear at (i) 5.2 (ii) 5.7* (iii) 7.8 (iv) 8.6

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Distance between the two detonators should be (i) 15 Mt. (ii) 10 Mt.* (iii) 20 Mt (iv) None of the above

Description : Distance between the two detonators should be (i) 15 Mt. (ii) 10 Mt.* (iii) 20 Mt (iv) None of the above

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Ist detonator is planted at a distance of (i) 1200 Mt. from welding site .* (ii) 600 mtrs from welding site (iii) 30 mtrs from welding site (iv) None of the above

Description : Ist detonator is planted at a distance of (i) 1200 Mt. from welding site .* (ii) 600 mtrs from welding site (iii) 30 mtrs from welding site (iv) None of the above

Last Answer : (i) 1200 Mt. from welding site .*

Banner flag is planted at a distance of (i) At the site of work (ii) At 1200 mtrs from welding site (iii) At 30 mtrs from welding site (iv) 600 Mt. from welding site .*

Description : Banner flag is planted at a distance of (i) At the site of work (ii) At 1200 mtrs from welding site (iii) At 30 mtrs from welding site (iv) 600 Mt. from welding site .*

Last Answer : iv) 600 Mt. from welding site .

Last flag man is deputed at which distance from last detonator during protection of welding site . (i) 30 mts (ii) 50 mts (iii) 45 (iv) 60 mts

Description : Last flag man is deputed at which distance from last detonator during protection of welding site . (i) 30 mts (ii) 50 mts (iii) 45 (iv) 60 mts

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hat is the minimum distance between AT Weld and other joint exist in track? (i) 2 Mt. (ii) 3 Mt. (iii) 4 Mt.* (iv) 4.5 Mt.

Description : hat is the minimum distance between AT Weld and other joint exist in track? (i) 2 Mt. (ii) 3 Mt. (iii) 4 Mt.* (iv) 4.5 Mt.

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For rolling mark 60 kg/Sail/X/2010 the first testing in the field after initial testing of rails in rail manufacturing plant, will be done. (i) After test free period of 25%. (ii) After passage of every 40 GMT traffic during test free period.* (iii) After passage of 200 GMT. (iv) On the basis of annual GMT of the section.

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Last Answer : (ii) After passage of every 40 GMT traffic during test free period.*

In new Rail as well as second hand rails how much end bends of the rails in vertical are permitted when checked with one meter straight edge before welding? (i) +0.5mm, -0 mm in vertical * (ii) +0.2mm, -.3 mm in vertical (iii) +0.3mm, -2 mm in vertical (iv) 0 mm, +.5 mm in vertical

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Last Answer : (i) +0.5mm, -0 mm in vertical *

Side looking 700 2MHZ probe is tested for detecting. (i) Flaw in head (ii) Flaw in web (iii) Half moon crack in flange.* (iv) For all above.

Description : Side looking 700 2MHZ probe is tested for detecting. (i) Flaw in head (ii) Flaw in web (iii) Half moon crack in flange.* (iv) For all above.

Last Answer : iii) Half moon crack in flange

Marking on weld should be done which side? (i) Non gauge face side of A.T. weld * (ii) Gauge face side of A.T. weld (iii) On web of non gauge face side of A.T. weld (iv) On web of gauge face side of A.T. weld

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Last Answer : (i) Non gauge face side of A.T. weld

Painting of weld is done up to (i) 10 CM minimum both side of weld & on welded surface .* (ii) 15 CM minimum both side of weld & on welded surface (iii) 20 CM minimum both side of weld & on welded surface (iv) None of the above

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Last Answer : (i) 10 CM minimum both side of weld & on welded surface .*

Finished tolerance on 10 cm long st. edge at the centre on gauge side shall be? (i) ± 0.4 mm (ii) ± 0.1 mm (iii) ± 0.2 mm (iv) ± 0.3 mm*

Description : Finished tolerance on 10 cm long st. edge at the centre on gauge side shall be? (i) ± 0.4 mm (ii) ± 0.1 mm (iii) ± 0.2 mm (iv) ± 0.3 mm*

Last Answer : iv) ± 0.3 mm*

Finished tolerance on 1 Mt. st. edge at the centre on gauge side shall be? (i) ± 0.2 mm (ii) ± 0.3 mm (iii) ± 0.5 mm* (iv) ± 1.0 mm

Description : Finished tolerance on 1 Mt. st. edge at the centre on gauge side shall be? (i) ± 0.2 mm (ii) ± 0.3 mm (iii) ± 0.5 mm* (iv) ± 1.0 mm

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How much rail ends are cleaned with Kerosene Oil and steel wire brush? (i) Minimum 100 mm both side (ii) Minimum 50 mm both side.* (iii) No need (iv) As decided by site supervisor

Description : How much rail ends are cleaned with Kerosene Oil and steel wire brush? (i) Minimum 100 mm both side (ii) Minimum 50 mm both side.* (iii) No need (iv) As decided by site supervisor

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Define the terms related to a.c. supply with waveform : i) Instantaneous value ii) Time period iii) Amplitude iv) Phase difference.

Description : Define the terms related to a.c. supply with waveform : i) Instantaneous value ii) Time period iii) Amplitude iv) Phase difference. 

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Define : i) Amplitude ii) Frequency iii) Time period iv) Angular velocity related to a.c.

Description : Define : i) Amplitude ii) Frequency iii) Time period iv) Angular velocity related to a.c.

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Do the particles of the medium in which a wave moves travel along with the wave? Explain with an example.

Description : Do the particles of the medium in which a wave moves travel along with the wave? Explain with an example.

Last Answer : When a wave propagates in a medium, the particles of the medium vibrate about their mean position and the energy is transferred without transfer of the particles of the medium. For example: Take some water ... cork in it. When the water is disturbed, the cork moves up and down but not forward.

As a longitudinal wave moves through a medium, the particles of the medium: w) vibrate in a path parallel to the path of the wave x) vibrate in a path perpendicular to the path of the wave y) follow the wave along its entire path z) do not move

Description : As a longitudinal wave moves through a medium, the particles of the medium: w) vibrate in a path parallel to the path of the wave x) vibrate in a path perpendicular to the path of the wave y) follow the wave along its entire path z) do not move

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After how much time lining of crucible should be changed ? (i) After every weld (ii) After 7 welds (iii) After every 10 welds* (iv) None of the above

Description : After how much time lining of crucible should be changed ? (i) After every weld (ii) After 7 welds (iii) After every 10 welds* (iv) None of the above

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In how many time final grinding should be done of new AT weld ? (i) Just after the welding (ii) After 8 hrs of welding (iii) With in 24 hrs* (iv) None of the above

Description : In how many time final grinding should be done of new AT weld ? (i) Just after the welding (ii) After 8 hrs of welding (iii) With in 24 hrs* (iv) None of the above

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In how many time rough riding should be done of new AT weld ? (i) Just after the welding* (ii) After 8 hrs of welding (iii) After 24 hrs (iv) None of the above

Description : In how many time rough riding should be done of new AT weld ? (i) Just after the welding* (ii) After 8 hrs of welding (iii) After 24 hrs (iv) None of the above

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What is the time of removal the tensor from the newly executed A T Weld? (i) 15 minutes after pouring. (ii) 20 minutes after pouring* (iii) 25 minutes after pouring. (iv) 30 minutes after pouring.

Description : What is the time of removal the tensor from the newly executed A T Weld? (i) 15 minutes after pouring. (ii) 20 minutes after pouring* (iii) 25 minutes after pouring. (iv) 30 minutes after pouring.

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What is mould waiting time? (i) 3 to 5 minutes. (ii) 4 to 6 minutes* (iii) 3.5 to 5.5 minutes (iv) 4.5 to 6.5 minutes

Description : What is mould waiting time? (i) 3 to 5 minutes. (ii) 4 to 6 minutes* (iii) 3.5 to 5.5 minutes (iv) 4.5 to 6.5 minuteses

Last Answer : (ii) 4 to 6 minutes*

Which gauge is used to measure the height of rail at the time of aligning of rails for AT welding? (i) Height gauge.* (ii) Vertical gauge (iii) Horizontal gauge (iv) As decided by site supervisor

Description : Which gauge is used to measure the height of rail at the time of aligning of rails for AT welding? (i) Height gauge.* (ii) Vertical gauge (iii) Horizontal gauge (iv) As decided by site supervisor

Last Answer : (iv) As decided by site supervisor

Normal Reaction time in SPW technique? (i) 17 ± 3 seconds. (ii) 15 ± 3 seconds (iii) 23 ± 3 seconds (iv) 20 ± 3 seconds*

Description : Normal Reaction time in SPW technique? (i) 17 ± 3 seconds. (ii) 15 ± 3 seconds (iii) 23 ± 3 seconds (iv) 20 ± 3 seconds*

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Heating time with compressed air and petrol in SPW is ? (i) 4.0 to 4.5 minutes.* (ii) 4.0 to 5 minutes (iii) 5.0 to 5.5 minutes (iv) 5.5 to 6 minutes

Description : Heating time with compressed air and petrol in SPW is ? (i) 4.0 to 4.5 minutes.* (ii) 4.0 to 5 minutes (iii) 5.0 to 5.5 minutes (iv) 5.5 to 6 minutes

Last Answer : (i) 4.0 to 4.5 minutes.*

hat action to be taken if slag is not separated within 20 ± 3 seconds? (i) Tap inside. (ii) Tap outside * (iii) Good reaction (iv) Tap well in time

Description : hat action to be taken if slag is not separated within 20 ± 3 seconds? (i) Tap inside. (ii) Tap outside * (iii) Good reaction (iv) Tap well in time

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What is the heating time in OXY & LPG in SPW? (i) 2.0 - 3.5 minutes. (ii) 2.0 - 3.0 minutes. (iii) 2.0 - 2.5 minutes.* (iv) 3.0 - 4.5 minutes.

Description : What is the heating time in OXY & LPG in SPW? (i) 2.0 - 3.5 minutes. (ii) 2.0 - 3.0 minutes. (iii) 2.0 - 2.5 minutes.* (iv) 3.0 - 4.5 minutes.

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How rejected portion are to be disposed-off? (i) By Igniting 5 Portions at a time in pit away from store?* (ii) By throwing them away (iii) By dispose off in a pit (iv) By using it in Branch/Yard lines for welding

Description : How rejected portion are to be disposed-off? (i) By Igniting 5 Portions at a time in pit away from store?* (ii) By throwing them away (iii) By dispose off in a pit (iv) By using it in Branch/Yard lines for welding

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During periodic testing of an AT weld with 700 probe, a bunch of moving signals of less than 40% but more than 10% is observed in the head of weld, the joint will be. (i) Good joint.* (ii) DFWR (iii) DFWO (iv) OBSW

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Last Answer : i) Good joint.*

On a branch line one new AT Weld with 00 probe shows a signal of 58 is. (i) DFWO* (ii) DFWR (iii) IMRW (iv) OBSW

Description : On a branch line one new AT Weld with 00 probe shows a signal of 58 is. (i) DFWO* (ii) DFWR (iii) IMRW (iv) OBSW

Last Answer : i) DFWO*

DFWR weld shall be replaced. (i) Within 2 months of detection. (ii) Within 1 year of detection. (iii) Within 3 months of detection.* (iv) after 3 days of detection.

Description : DFWR weld shall be replaced. (i) Within 2 months of detection. (ii) Within 1 year of detection. (iii) Within 3 months of detection.* (iv) after 3 days of detection.

Last Answer : (iii) Within 3 months of detection.*

Marking of DFWO weld is. (i) Two red point circle on both faces of weld.* (ii) Two red point cross on both faces of weld. (iii) One red point circle on both faces of weld. (iv) None of the above.

Description : Marking of DFWO weld is. (i) Two red point circle on both faces of weld.* (ii) Two red point cross on both faces of weld. (iii) One red point circle on both faces of weld. (iv) None of the above.

Last Answer : i) Two red point circle on both faces of weld.*

The gap between probing face and probing shoe should be. (i) 0.4 mm (ii) 0.2mm * (iii) 3mm (iv) 1mm.

Description : The gap between probing face and probing shoe should be. (i) 0.4 mm (ii) 0.2mm * (iii) 3mm (iv) 1mm.

Last Answer : (ii) 0.2mm *

Sensitivity calibration against temp. variation shall be carried out. (i) At least once in month* (ii) quarterly. (iii) at least once in six months (iv) Any of above.

Description : Sensitivity calibration against temp. variation shall be carried out. (i) At least once in month* (ii) quarterly. (iii) at least once in six months (iv) Any of above.

Last Answer : i) At least once in month*

On Rajdhani routes testing frequency of rail testing for rail section of 60kg with annual GMT 80, will be. (i) 4 months (ii) 1 1⁄2 months (iii) 1 months* (iv) None of above.

Description : On Rajdhani routes testing frequency of rail testing for rail section of 60kg with annual GMT 80, will be. (i) 4 months (ii) 1 1⁄2 months (iii) 1 months* (iv) None of above.

Last Answer : (iii) 1 months*

The increased gain of 10 dbs for single line & ‘D’ marks rails on double/multiple lines shall be employed for classification of defects. (i) defect in weld (ii) defects in rail. * (iii) for both defects on weld & rail. (iv) None of above.

Description : The increased gain of 10 dbs for single line & ‘D’ marks rails on double/multiple lines shall be employed for classification of defects. (i) defect in weld (ii) defects in rail. * (iii) for both defects on weld & rail. (iv) None of above.

Last Answer : ii) defects in rail. *

Addition gain of 10 db is used for testing. (i) ‘D’ marked rails on single lines. (ii) ‘D’ marked rails on double lines. (iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.* (iv) None of above.

Description : Addition gain of 10 db is used for testing. (i) ‘D’ marked rails on single lines. (ii) ‘D’ marked rails on double lines. (iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.* (iv) None of above.

Last Answer : (iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.*

Total no. of probes fitted on digital double rail tester for rail testing are (i) 12 (ii) 8 (iii) 14* (iv) 16.

Description : Total no. of probes fitted on digital double rail tester for rail testing are (i) 12 (ii) 8 (iii) 14* (iv) 16.

Last Answer : (iii) 14*

Tandem rig test with 450 probe for AT weld detects. (i) Horizontal longitudinal defect in weld. (ii) Vertical oriented defect in AT weld.* (iii) Transverse defect in AT weld. (iv) Defect in flange of AT welds.

Description : Tandem rig test with 450 probe for AT weld detects. (i) Horizontal longitudinal defect in weld. (ii) Vertical oriented defect in AT weld.* (iii) Transverse defect in AT weld. (iv) Defect in flange of AT welds.

Last Answer : (ii) Vertical oriented defect in AT weld.*

By 00 probe in AT weld testing with normal gain setting. (i) Area below N.axis can be tested. (ii) Area below N.axis can not be tested.* (iii) Only web below N.axis can be tested. (iv) All above are correct.

Description : By 00 probe in AT weld testing with normal gain setting. (i) Area below N.axis can be tested. (ii) Area below N.axis can not be tested.* (iii) Only web below N.axis can be tested. (iv) All above are correct.

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Description : 450 probe is used for detecting defect in; (i) FB weld (ii) AT weld (iii) FB weld, AT weld & SEJ (iv) All above*

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If code of a fracture is OFW-422 then it means. (i) AT welding with transverse crack. (ii) Flash butt welding with transverse crack. (iii) At welding with horizontal crack.* (iv) None of the above.

Description : If code of a fracture is OFW-422 then it means. (i) AT welding with transverse crack. (ii) Flash butt welding with transverse crack. (iii) At welding with horizontal crack.* (iv) None of the above.

Last Answer : (iii) At welding with horizontal crack.*

What is the meaning of HAZ ? (i) Heat around Zone. (ii) Heat alongwith Zone (iii) Heat affected Zone* (iv) Heat added zero.

Description : What is the meaning of HAZ ? (i) Heat around Zone. (ii) Heat alongwith Zone (iii) Heat affected Zone* (iv) Heat added zero.

Last Answer : (iii) Heat affected Zone*

In AT welding process what is the role of asbestos powder & slag ? (i) To separate closing pin from portion* (ii) To hold the portion (iii) Both above are correct (iv) None of the above

Description : In AT welding process what is the role of asbestos powder & slag ? (i) To separate closing pin from portion* (ii) To hold the portion (iii) Both above are correct (iv) None of the above

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