MCQOPTIONS
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MCQOPTIONS
This section includes 111 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
While measuring the set of observations, the transit should be levelled each time for high degree of precision. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
In first method of taking single set, after keeping the telescope normal throughout we measure the angle clockwise by 6 repetitions. We obtain the first value of the angle by dividing the final reading by _______ |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 6 |
| Answer» E. | |
| 3. |
For measuring an angle to the highest degree of precision, several sets of repetitions are usually taken. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
To measure a horizontal angle by direct method is also called a repetition method. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
If one of the vernier is at 0° then another vernier reading shows / also shows ______ |
| A. | 90° |
| B. | 0° |
| C. | 180° |
| D. | 45° |
| Answer» D. 45° | |
| 6. |
To measure a horizontal angle, after releasing all clamps, we turn the upper and lower plates in the same direction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
After levelling of an instrument is done what is the next up? |
| A. | Releasing all clamps |
| B. | Loosing the lower clamp |
| C. | Turning plates |
| D. | Clamping the plates |
| Answer» B. Loosing the lower clamp | |
| 8. |
The method of repetition is used to measure a horizontal angle to a finer degree of accuracy than that obtained with the least count of the vernier. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
After setting up the instrument first thing done by the surveyor is _________ |
| A. | releasing all clamps |
| B. | levelling instrument |
| C. | turning plates |
| D. | clamping the plates |
| Answer» C. turning plates | |
| 10. |
To measure the horizontal angle which of the following is the first step? |
| A. | Releasing all clamps |
| B. | Levelling instrument |
| C. | Turning plates |
| D. | Clamping the plates |
| Answer» C. Turning plates | |
| 11. |
If every one of the three angles of a triangle have a probable error of \( \pm1''\), then what will be the probable error in the sum of the measured internal angles of the triangle? |
| A. | \( \pm 1''\) |
| B. | \( \pm 3''\) |
| C. | \( \pm 9''\) |
| D. | \( \pm \sqrt {3''}\) |
| Answer» E. | |
| 12. |
An orifice meter with Cd = 0.61 is substituted by venturi meter with Cd = 0.98 in a pipeline carrying crude oil, having the same throat diameter as that of the orifice. For the same flow rate, the ratio of the pressure drops for the venturi meter and the orifice meter is |
| A. | \(\frac{{0.61}}{{0.98}}\) |
| B. | \({\left( {\frac{{0.61}}{{0.98}}}\right)^2}\) |
| C. | \(\frac{{0.98}}{{0.61}}\) |
| D. | \({\left( {\frac{{0.98}}{{0.61}}}\right)^2}\) |
| Answer» C. \(\frac{{0.98}}{{0.61}}\) | |
| 13. |
If the slope of a ground is 3°, then the gradient can be represented as |
| A. | 1 : 3 |
| B. | 1 : 9 |
| C. | 1 : 12 |
| D. | 1 : 19 |
| Answer» E. | |
| 14. |
A survey line was measured to be 285.5m with a tape having a nominal length of 30m. On checking, the true length of the tape was found to be 0.05 m too short. If the line lay on a slope of 1 in 10, the reduced length (horizontal length) of the line for plotting of survey work would be |
| A. | 285.6 m |
| B. | 283.6 m |
| C. | 285.0 m |
| D. | 284.5 m |
| Answer» C. 285.0 m | |
| 15. |
How many links are recommended in a 20 m Metric chain as per IS: 1492-1970? |
| A. | 75 |
| B. | 100 |
| C. | 50 |
| D. | 25 |
| Answer» C. 50 | |
| 16. |
If a chain is found too short on testing, it can be adjusted by _________. |
| A. | Straightening the links |
| B. | Inserting additional circular rings |
| C. | Flattening the circular rings |
| D. | Any of the options |
| Answer» E. | |
| 17. |
Angle of diverging portion of the venturimeter is limited to 7°, because:1) Flow decelerates in the diverging portion and pressure increases in the downstream direction. Hence, the fluid experiences an adverse pressure gradient, if the divergence angle is large.2) Flow separation takes place due to adverse pressure gradient when divergence angle Is large.3) If the divergence angle is large an negative pressure is created at the throat which obstructs the throat which obstructs the flow of fluid.Which of the above reasons are correct? |
| A. | 1, 2 and 3 |
| B. | 1 and 2 only |
| C. | 1 and 3 only |
| D. | 2 and 3 only |
| Answer» C. 1 and 3 only | |
| 18. |
Number of links in 20 m metric chain is __________. |
| A. | 80 |
| B. | 100 |
| C. | 120 |
| D. | 150 |
| Answer» C. 120 | |
| 19. |
______is a device used for measuring the rate of flow in a fluid flowing through a pipe. |
| A. | Speedometer |
| B. | Odometer |
| C. | Venturimeter |
| D. | Barometer |
| E. | Lactometer |
| Answer» D. Barometer | |
| 20. |
Offsets are |
| A. | lateral measurements made with respect to chain lines |
| B. | measurements parallel and perpendicular erected from main survey lines |
| C. | taken to avoid unnecessary walking between stations |
| D. | None of above |
| Answer» B. measurements parallel and perpendicular erected from main survey lines | |
| 21. |
Match the listsType of SurveyRecommendedScale p) Building survey i) 1 ∶ 25000 q) Topographical survey ii) 1 ∶ 10000 r) Route survey iii) 1 ∶ 1000 |
| A. | p - (i), q - (ii), r - (iii) |
| B. | p - (iii), q - (i), r - (ii) |
| C. | p - (iii), q - (ii), r - (i) |
| D. | p - (ii), q - (i), r - (iii) |
| Answer» C. p - (iii), q - (ii), r - (i) | |
| 22. |
A venturimeter of 20 mm throat diameter is used to measure the velocity of water in a horizontal pipe of 40 mm diameter. If the pressure difference between the pipe and throat sections is found to be 30 kPa, then, neglecting frictional losses, the flow velocity is |
| A. | 0.2 m/sec |
| B. | 1.0 m/sec |
| C. | 1.4 m/sec |
| D. | 2.0 m/sec |
| Answer» E. | |
| 23. |
A fluid jet is discharging from a 100 mm nozzle and the vena contracta formed has a diameter of 90 mm. if the coefficient of velocity is 0.95, then the coefficient of discharge for the nozzle is |
| A. | 0.7695 |
| B. | 0.81 |
| C. | 0.9025 |
| D. | 0.855 |
| Answer» B. 0.81 | |
| 24. |
Chainage is the distance measured _________. |
| A. | Along a chain line |
| B. | Perpendicular to a chain line |
| C. | Perpendicular to a tie line |
| D. | None of these |
| Answer» B. Perpendicular to a chain line | |
| 25. |
Normal tension for a tape is defined as the pull |
| A. | applied by an average adult |
| B. | applied for standardizing the tape |
| C. | which equalizes the effect due to sag |
| D. | that equalizes the effect due to the slope |
| Answer» D. that equalizes the effect due to the slope | |
| 26. |
Consider the following:A. Locate the boundaries of an areaB. Plot the figure to a scaleC. Find the area of the plotD. Find the reduced levels of the plotWhich of the above is/are the objective(s) of chain and cross-staff survey? |
| A. | Only D |
| B. | Only A, B and C |
| C. | Only A and B |
| D. | All of them |
| Answer» C. Only A and B | |
| 27. |
A surveyor measured the distance between two points on the plan drawn to a scale of 1 cm = 40 m and the result was 450 m. Later, he discovered that he used a scale of 1 cm = 20 m. Find the true distance between the two points |
| A. | 225 |
| B. | 900 |
| C. | 2250 |
| D. | 1125 |
| E. | 450 |
| Answer» C. 2250 | |
| 28. |
An area of a field is 250 square centimetres from a shrunk map having shrunk factor of 0.9. Calculate the original area (square metres) on the field, if the original scale of the map is 1 cm = 50 m. |
| A. | 309 |
| B. | 625000 |
| C. | 694444 |
| D. | 771450 |
| Answer» E. | |
| 29. |
An oil of specific gravity 0.8 is flowing a venturi meter having inlet diameter 20 cm and throat diameter of 10 cm. The oil differential manometer shows a reading of 25 cm. Calculate the difference of pressure head. Specific gravity of mercury is 13.6. |
| A. | 200 cm |
| B. | 100 cm |
| C. | 300 cm |
| D. | 400 cm |
| Answer» E. | |
| 30. |
The required slope correction for a length of 60 m along a gradient of 1 in 20 is: |
| A. | 7.5 m |
| B. | 7.5 cm |
| C. | 0.75 cm |
| D. | 5.75 cm |
| Answer» C. 0.75 cm | |
| 31. |
A rotameter is a device used to measure |
| A. | Velocity of fluid in the pipe |
| B. | Velocity of gauges |
| C. | Vortex flow |
| D. | Flow of fluids |
| Answer» E. | |
| 32. |
________ is a useful instrument for finding velocity profile in the boundary layer. |
| A. | Hot-wire anemometer |
| B. | Rotameter |
| C. | Bourdon gauge |
| D. | Turbine meter |
| Answer» B. Rotameter | |
| 33. |
In surveying, a 20 m chain contains: |
| A. | 50 links |
| B. | 100 links |
| C. | 150 links |
| D. | 250 links |
| Answer» C. 150 links | |
| 34. |
Offsets are of two types, _______. |
| A. | Horizontal and vertical |
| B. | Straight and oblique |
| C. | Horizontal and curved oblique |
| D. | Perpendicular and oblique |
| Answer» E. | |
| 35. |
A venturi meter in an oil (sp. gr. 0.8) pipe is connected to a differential manometer in which the gauge liquid is mercury (sp. gr. 13.6). For a flow rate of 0.16 m3/s, the manometer registers a gauge differential of 20 cm. The oil-mercury manometer being unavailable, an air-oil differential manometer is connected to the same venturi meter. Neglecting variation of discharge coefficient for the venturi meter, what is the new gauge differential for a flow rate of 0.08 m3/s? |
| A. | 64 cm |
| B. | 68 cm |
| C. | 80 cm |
| D. | 85 cm |
| Answer» D. 85 cm | |
| 36. |
A venturimeter, having a diameter of 7·5 cm at the throat and 15 cm at the enlarged end, is installed in a horizontal pipeline of 15 cm diameter. The pipe carries an incompressible fluid at a steady rate of 30 liters per second. The difference of pressure head measured in terms of the moving fluid in between the enlarged end and the throat of the venturimeter is observed to be 2·45 m. Taking the acceleration due to gravity as 9.81 m /s2 , the coefficient of discharge of the venturimeter is |
| A. | 0·90 |
| B. | 0·95 |
| C. | 0·85 |
| D. | 0·74 |
| Answer» C. 0·85 | |
| 37. |
In an optical square, the two mirrors are placed at an angle of |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | 90° |
| Answer» C. 60° | |
| 38. |
In chain surveying work, the line joining tie stations for taking offsets from it, is known as:- |
| A. | Tie line |
| B. | Check line |
| C. | Chain line |
| D. | Base line |
| Answer» B. Check line | |
| 39. |
A scale of 1 inch = 50 ft. is mentioned on an old map. What is the corresponding equivalent scale? |
| A. | 1 cm = 5 m |
| B. | 1 cm = 6 m |
| C. | 1 cm = 10 m |
| D. | 1 cm = 12 m |
| Answer» C. 1 cm = 10 m | |
| 40. |
An orifice is located in the side of a tank with its centre 10 cm above the base of the tank. The constant water level is 1.0 m above the centre of orifice. The coefficient of velocity is 0.98. On the issuing jet, the horizontal distance from the vena-contract to where the jet is 10 below vena-contracta is |
| A. | 1.62 m |
| B. | 1.00 m |
| C. | 0.62 m |
| D. | 0.32 m |
| Answer» D. 0.32 m | |
| 41. |
A vernier is made using a main scale of one meter to read mm. If the vernier scale is divided into cm divisions, the vernier will have: |
| A. | 10 divisions for 9 main scale divisions |
| B. | 11 divisions for 10 main scale divisions |
| C. | 20 divisions for 19 main scale divisions |
| D. | 21 divisions for 20 main scale divisions |
| Answer» B. 11 divisions for 10 main scale divisions | |
| 42. |
Measuring with a 30 m chain which is 0.01 m too short introduces a |
| A. | Positive compensating error |
| B. | Negative compensating error |
| C. | Positive cumulative error |
| D. | Negative cumulative error |
| Answer» D. Negative cumulative error | |
| 43. |
A 30 m metric chain is found to be 0.1 m too short through out the measurement. If the distance measured is recorded as 300 m, then the actual distance will be |
| A. | 300.1 m |
| B. | 301.0 m |
| C. | 299.0 m |
| D. | 310.0 m |
| Answer» D. 310.0 m | |
| 44. |
Due to variation of venturimeter constant, venturimeters are not suitable for |
| A. | Low velocity |
| B. | High velocity |
| C. | Low pressure |
| D. | High pressure |
| Answer» C. Low pressure | |
| 45. |
An oil of viscosity 8 poise flows between two parallel fixed plates, which are kept at a distance of 30 mm apart. If the drop of pressure for a length of 1 m is 0.3 × 104 N/m2 and the width of the plates is 500 mm, the rate of oil flow between the plates will be |
| A. | 4.2 × 10-3 m3/s |
| B. | 5.4 × 10-3 m3/s |
| C. | 6.6 × 10-3 m3/s |
| D. | 7.8 × 10-3 m3/s |
| Answer» B. 5.4 × 10-3 m3/s | |
| 46. |
If θ is the angle of slope, L is the length of slope and h is the difference in elevation between two ends of the line, then correction will be |
| A. | L sin θ |
| B. | \(2{\rm{L}}{\sin ^2}\left( {\frac{{\rm{\theta }}}{2}} \right)\) |
| C. | \({\rm{L}}\sin \left( {\frac{{\rm{\theta }}}{2}} \right)\) |
| D. | 2L sin 2θ |
| Answer» C. \({\rm{L}}\sin \left( {\frac{{\rm{\theta }}}{2}} \right)\) | |
| 47. |
Pitot-tube is used for measurement of : |
| A. | Discharge |
| B. | Pressure |
| C. | Flow |
| D. | Velocity at a point |
| Answer» E. | |
| 48. |
One nauticle mile is equal to ______. |
| A. | 1.687 km |
| B. | 1.712 km |
| C. | 1.512 km |
| D. | 1.852 km |
| Answer» E. | |
| 49. |
In a venturimeter, to avoid flow separation, angle of divergence should not be greater than: |
| A. | 3° |
| B. | 7° |
| C. | 12° |
| D. | 20° |
| Answer» C. 12° | |
| 50. |
Coefficient of discharge in terms of orifice is, actual discharge 'a' and ideal discharge 'd' is |
| A. | d/a |
| B. | a/d |
| C. | (a + d)/d |
| D. | (a - d)/d |
| Answer» C. (a + d)/d | |