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MCQOPTIONS
This section includes 5814 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 2651. |
The various stages occuring in GPS system are described below :1. Generation of an output to the user2. Detection of the GPS signal3. Processing the data in the built-in-computer4. Decoding the GPS signal.The correct sequence of the stages is : |
| A. | 1, 2, 3, 4 |
| B. | 2, 3, 4, 1 |
| C. | 2, 4, 3, 1 |
| D. | 3, 1, 2 , 4 |
| Answer» D. 3, 1, 2 , 4 | |
| 2652. |
Which one of the following parameters is accurate for DGPS. |
| A. | Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station |
| B. | Positional accuracies ~ 2 - 5m if rover is less than 2-5 fm from the reference station |
| C. | Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station |
| D. | Positional accuracies ~ 5 - 10 m if rover is less than 25 km |
| Answer» B. Positional accuracies ~ 2 - 5m if rover is less than 2-5 fm from the reference station | |
| 2653. |
The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called: |
| A. | passive remote sensing |
| B. | active remote sensing |
| C. | neutral remote sensing |
| D. | None of these |
| Answer» C. neutral remote sensing | |
| 2654. |
The code based GPS receivers are generally used for: |
| A. | Vehicle tracking |
| B. | Land navigation |
| C. | Trans movement |
| D. | All of these |
| Answer» E. | |
| 2655. |
The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is : |
| A. | 8 |
| B. | 12 |
| C. | 16 |
| D. | 24 |
| Answer» E. | |
| 2656. |
Which one of the following geometric errors of satellite sensors is random ? |
| A. | scan skew |
| B. | panoramic distortion |
| C. | earth rotation |
| D. | altitude variation |
| Answer» E. | |
| 2657. |
The reflectance from a surface is called specular reflection if it follows: . |
| A. | Snells's law |
| B. | Lambert's cosine law |
| C. | Planktan's law |
| D. | All of these |
| Answer» B. Lambert's cosine law | |
| 2658. |
While propagating through homogeneous, isotropic media, |
| A. | directions of both the fields are orthogonal |
| B. | both the fields are at right angles to the direction of propagation. |
| C. | both (a) and (b) |
| D. | niether (a) nor (b) |
| Answer» D. niether (a) nor (b) | |
| 2659. |
In sun-light water poor in phyto plank tons appears : |
| A. | deep blue |
| B. | red |
| C. | green |
| D. | yellow |
| Answer» B. red | |
| 2660. |
The maximum absorption of solar radiation due to ozone occurs at wave lengths: |
| A. | shorter than 0.3 m |
| B. | shorter than 0.2 m |
| C. | greater than 0.3 m |
| D. | None of these |
| Answer» B. shorter than 0.2 m | |
| 2661. |
Snow albedo is affected by : |
| A. | wave length |
| B. | grain size |
| C. | solar zenith angle |
| D. | snow pack thickness |
| E. | All of these |
| Answer» F. | |
| 2662. |
A fall in a canal bed is generally provided, if |
| A. | ground slope exceeds the designed bed slope |
| B. | designed bed slope exceeds the ground slope |
| C. | ground slope is practically the same as the designed bed slope |
| D. | none of these. |
| Answer» B. designed bed slope exceeds the ground slope | |
| 2663. |
The down stream expansion head of a guide bank is extended to subtend an angle at the centre, equal to |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | 90 |
| Answer» C. 60 | |
| 2664. |
In north Indian Plains, optimum depth of kor watering for wheat, is |
| A. | 23.0 cm |
| B. | 19.0 cm |
| C. | 17.5 cm |
| D. | 13.5 cm |
| E. | 12.0 cm |
| Answer» E. 12.0 cm | |
| 2665. |
The state of the soil when plants fail to extract sufficient water for their requirements, is |
| A. | maximum saturated point |
| B. | permanent wilting point |
| C. | ultimate utilisation point |
| D. | none of these. |
| Answer» C. ultimate utilisation point | |
| 2666. |
In Montague type fall |
| A. | a straight glacis is provided |
| B. | a circular glacis is provided |
| C. | a parabolic glacis is provided |
| D. | no glacis is provided. |
| Answer» D. no glacis is provided. | |
| 2667. |
Cross regulators in main canals are provided |
| A. | to regulate water supply in the distributaries |
| B. | to increase water head upstream when a main canal is running with low supplies |
| C. | to overflow excessive flow water |
| D. | none of these. |
| Answer» C. to overflow excessive flow water | |
| 2668. |
In a concrete canal the approximate permissible velocity of water should not exceed |
| A. | 0.5 m/sec |
| B. | 1 m/sec |
| C. | 1.5 m/sec |
| D. | 2 m/sec |
| E. | 2.5 m/sec |
| Answer» E. 2.5 m/sec | |
| 2669. |
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor down stream of the crestwall, is given by the equation |
| A. | <img src="/_files/images/civil-engineering/irrigation/19-15-85-1.png"> |
| B. | <img src="/_files/images/civil-engineering/irrigation/19-15-85-2.png"> |
| C. | <img src="/_files/images/civil-engineering/irrigation/19-15-85-3.png"> |
| D. | <img src="/_files/images/civil-engineering/irrigation/19-15-85-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/irrigation/19-15-85-4.png"> | |
| 2670. |
A recording type rain gauge |
| A. | produces a mass curve of rain fall |
| B. | records the cumulative rain |
| C. | is sometimes called integrating rain gauge or continuous rain gauge |
| D. | all the above. |
| Answer» E. | |
| 2671. |
While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in |
| A. | Arithmetical method |
| B. | Thiessen's mean method |
| C. | Isohyetal method |
| D. | both (a) and (b) |
| E. | both (b) and (c). |
| Answer» F. | |
| 2672. |
Precipitation caused by lifting of an air mass due to the pressure difference, is called |
| A. | cyclonic precipitation |
| B. | convective precipitation |
| C. | orographic precipitation |
| D. | none of these. |
| Answer» B. convective precipitation | |
| 2673. |
For determination of average annual precipitation in a catchment basin, the best method is |
| A. | Arithmetical method |
| B. | Thiessen's mean method |
| C. | Isohyetal method |
| D. | None of these. |
| Answer» D. None of these. | |
| 2674. |
To prevent percolation of water into formation, moorum is used as a blanket for |
| A. | black cotton soil |
| B. | sandy soil |
| C. | clayey soil |
| D. | all the above. |
| Answer» B. sandy soil | |
| 2675. |
Minimum packing space provided between two sleepers, is between |
| A. | 20 to 25 cm |
| B. | 25 to 30 cm |
| C. | 30 to 35 cm |
| D. | 35 to 40 cm |
| Answer» D. 35 to 40 cm | |
| 2676. |
The stereo plotting instruments are generally manufactured on the principle of |
| A. | optical projection |
| B. | optical mechanism projection |
| C. | mechanical projection |
| D. | all the above. |
| Answer» E. | |
| 2677. |
The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is |
| A. | 500 m |
| B. | 1000 m |
| C. | 1500 m |
| D. | 2000 m. |
| Answer» C. 1500 m | |
| 2678. |
Distance between inner faces of the flanges, is kept |
| A. | equal to the gauge distance |
| B. | slightly less than the gauge distance |
| C. | slightly more than the gauge distance |
| D. | none of these. |
| Answer» C. slightly more than the gauge distance | |
| 2679. |
The tread of wheels is provided an outward slope of |
| A. | 1 in 10 |
| B. | 1 in 15 |
| C. | 1 in 20 |
| D. | 1 in 25 |
| E. | 1 in 30 |
| Answer» D. 1 in 25 | |
| 2680. |
The equation which is obtained by multiplying each equation by the coefficient of its un-knowns and by adding the equations thus formed, is known as |
| A. | observation equation |
| B. | conditional equation |
| C. | normal equation |
| D. | none of these. |
| Answer» D. none of these. | |
| 2681. |
Coning of wheels |
| A. | prevent lateral movement of wheels |
| B. | provide smooth running of trains |
| C. | avoid excessive wear of inner faces of rail |
| D. | all the above. |
| Answer» E. | |
| 2682. |
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained. |
| A. | by subtracting their longitudes if places are in the same hemisphere |
| B. | by adding their longitudes if places are in the different hemispheres |
| C. | by subtracting the sum of their longitudes exceeding 180 from 360 if places are in different hemispheres |
| D. | all the above. |
| Answer» D. all the above. | |
| 2683. |
In a tropical year, the number of sidereal days are |
| A. | one less than mean solar days |
| B. | one more than mean solar days |
| C. | equal to mean solar days |
| D. | none of these. |
| Answer» C. equal to mean solar days | |
| 2684. |
The position of a heavenly body on the celestial sphere can be completely specified by |
| A. | its altitude and azimuth |
| B. | its declination and hour angle |
| C. | its declination and right ascension |
| D. | all the above. |
| Answer» E. | |
| 2685. |
The bulk density of aggregates does not depend upon : |
| A. | size and shape of aggregates |
| B. | specific gravity of aggregates |
| C. | grading of aggregates |
| D. | size and shape of the container |
| E. | none of these. |
| Answer» E. none of these. | |
| 2686. |
To ensure constant moisture content in aggregates |
| A. | area of each aggregate pile should be large |
| B. | height of each aggregate pile should not exceed 1.50 m |
| C. | aggregate pile should be left for 24 hours before aggregates are used |
| D. | conical heaps of aggregates should be avoided to prevent moisture variation |
| E. | all the above. |
| Answer» F. | |
| 2687. |
Hardening of cement occurs at |
| A. | rapid rate during the first few days and afterwards it continues to increase at a decreased rate |
| B. | slow rate during the first few days and afterwards it continues to increase at a rapid rate |
| C. | uniform rate throughout its age |
| D. | none of these. |
| Answer» E. | |
| 2688. |
M 150 grade of concrete approximates |
| A. | 1 : 3 : 6 mix |
| B. | 1 : 1 :2 mix |
| C. | 1 : 2 : 4 mix |
| D. | 1 : 1.5 : 3 mix |
| E. | none of these. |
| Answer» D. 1 : 1.5 : 3 mix | |
| 2689. |
If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is |
| A. | 7.30 |
| B. | 7.35 |
| C. | 7.40 |
| D. | 7.45 |
| E. | none of these. |
| Answer» D. 7.45 | |
| 2690. |
If X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P) of fine aggregates to combined aggregates, is |
| A. | <img src="/_files/images/civil-engineering/concrete-technology/59-12-109-1.png"> |
| B. | <img src="/_files/images/civil-engineering/concrete-technology/59-12-109-2.png"> |
| C. | <img src="/_files/images/civil-engineering/concrete-technology/59-12-109-3.png"> |
| D. | <img src="/_files/images/civil-engineering/concrete-technology/59-12-109-4.png"> |
| E. | <img src="/_files/images/civil-engineering/concrete-technology/59-12-109-5.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/concrete-technology/59-12-109-3.png"> | |
| 2691. |
For compacting plain concrete road surface of thickness less than 20 cm, we use |
| A. | internal vibrator |
| B. | screed vibrator |
| C. | form vibrator |
| D. | none of these. |
| Answer» C. form vibrator | |
| 2692. |
As per I.S. 456 - 1978, the pH value of water shall be |
| A. | less than 6 |
| B. | equal to 6 |
| C. | not less than 6 |
| D. | equal to 7 |
| Answer» D. equal to 7 | |
| 2693. |
The design of a retaining wall assumes that the retained earth |
| A. | is dry |
| B. | is free from moisture |
| C. | is not cohesives |
| D. | consists of granular particles |
| E. | all the above. |
| Answer» F. | |
| 2694. |
With the usual meanings ofletters, the equation is used for determining the velocity of ground water flow in metres per day. It is known as |
| A. | Meinzer's formula |
| B. | Slichter's formula |
| C. | Darcy's formula |
| D. | Hazen's formula. |
| Answer» C. Darcy's formula | |
| 2695. |
In the derivation of Thiem's formula , the following assumption is not applicable |
| A. | The aquifer is homogeneous and isotropic |
| B. | Flow lines are radial and horizontal |
| C. | The slope of the water surface is too small |
| D. | The well has been sunk up to the surface of the unconfined aquifer |
| E. | None of these. |
| Answer» E. None of these. | |
| 2696. |
While determining the yield of a gravity well by pumping, the depth of water table in two tests wells at distances r1 and r2 from the centre of the main well were found to be s1 and s2 respectively. Assuming the coefficient of transmissibility of the soil as T, the discharge Q may be given by |
| A. | <img src="/_files/images/civil-engineering/water-resources-engineering/176-8.122-1.png"> |
| B. | <img src="/_files/images/civil-engineering/water-resources-engineering/176-8.122-2.png"> |
| C. | <img src="/_files/images/civil-engineering/water-resources-engineering/176-8.122-3.png"> |
| D. | <img src="/_files/images/civil-engineering/water-resources-engineering/176-8.122-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/water-resources-engineering/176-8.122-4.png"> | |
| 2697. |
Consumptive use of a crop during growth, is the amount of |
| A. | interception |
| B. | transpiration |
| C. | evaporation |
| D. | all the above. |
| Answer» E. | |
| 2698. |
The best instrument for measuring the velocity of a stream flow is |
| A. | pitot tube |
| B. | Price's current meter |
| C. | surface float |
| D. | sub-surface float. |
| Answer» C. surface float | |
| 2699. |
The best unit period of a unit hydrograph, is equal to basin lag divided by |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 2700. |
For high flood estimates the average value of the constant C in Dicken's formula Q = CA3/4, is |
| A. | 6.5 |
| B. | 8.5 |
| C. | 9.5 |
| D. | 10.5 |
| E. | 11.5 |
| Answer» F. | |