MCQOPTIONS
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MCQOPTIONS
This section includes 119 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Changing inputs affects what kind of dynamics directly? |
| A. | synaptic |
| B. | neural |
| C. | activation |
| D. | both synaptic & neural |
| Answer» D. both synaptic & neural | |
| 2. |
What kind of dynamics leads to learning laws? |
| A. | synaptic |
| B. | neural |
| C. | activation |
| D. | both synaptic & neural |
| Answer» B. neural | |
| 3. |
What are models in neural networks? |
| A. | mathematical representation of our understanding |
| B. | representation of biological neural networks |
| C. | both way |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
What is generalization? |
| A. | the ability of a pattern recognition system to approximate the desired output values for pattern vectors which are not in the test set. |
| B. | the ability of a pattern recognition system to approximate the desired output values for pattern vectors which are not in the training set. |
| C. | can be either way |
| D. | none of the mentioned |
| Answer» C. can be either way | |
| 5. |
What is classification? |
| A. | deciding what features to use in a pattern recognition problem |
| B. | deciding what class an input pattern belongs to |
| C. | deciding what type of neural network to use |
| D. | none of the mentioned |
| Answer» C. deciding what type of neural network to use | |
| 6. |
Synaptic dynamics is referred as? |
| A. | short term memory |
| B. | long term memory |
| C. | either short or long term |
| D. | both short & long term |
| Answer» C. either short or long term | |
| 7. |
Activation dynamics is referred as? |
| A. | short term memory |
| B. | long term memory |
| C. | either short or long term |
| D. | both short & long term |
| Answer» B. long term memory | |
| 8. |
During activation dynamics does weight changes? |
| A. | yes |
| B. | no |
| Answer» C. | |
| 9. |
Which is faster neural level dynamics or synaptic dynamics? |
| A. | neural level |
| B. | synaptic |
| C. | both equal |
| D. | insufficient information |
| Answer» B. synaptic | |
| 10. |
Weight state i.e set of weight values are determined by what kind of dynamics? |
| A. | synaptic dynamics |
| B. | neural level dynamics |
| C. | can be either synaptic or neural dynamics |
| D. | none of the mentioned |
| Answer» B. neural level dynamics | |
| 11. |
An orifice meter, having an orifice of diameter ‘d’ is fitted in a pipe of diameter D. For this orifice meter, what is the coefficient of discharge Cd? |
| A. | A function of Reynolds number only |
| B. | A function of d/D only |
| C. | A function of d/D and Reynolds number |
| D. | Independent of d/D and Reynolds number |
| Answer» D. Independent of d/D and Reynolds number | |
| 12. |
In fluid flow, the line of constant piezometric head passes through two points which have the same |
| A. | Elevation |
| B. | Pressure |
| C. | Velocity |
| D. | Velocity potential |
| Answer» D. Velocity potential | |
| 13. |
If water is flowing through a pipe of 5 cm diameter under a pressure of 20 N/cm2 and a mean velocity of 2.0 m/s, the kinetic head will be |
| A. | 20.4 m |
| B. | 0.101 m |
| C. | 0.204 m |
| D. | 10.1 m |
| Answer» D. 10.1 m | |
| 14. |
A horizontal nozzle of 30 mm diameter discharges a steady jet of water into the atmosphere at a rate of 15 litres per second. The diameter of inlet to the nozzle is 100 mm. The jet impinges normal to a flat stationary plate held close to the nozzle end. Neglecting air friction and considering the density of water as 1000 kg/m3, the force exerted by the jet (in N) on the plate is _________ |
| A. | 318.3 |
| B. | 328.3 |
| C. | 338.3 |
| D. | 348.3 |
| Answer» B. 328.3 | |
| 15. |
In a lawn sprinkler, water leaves the jet with an absolute velocity of 2 m/s and the sprinkler arms are 0.1 m in length. The sprinkler rotates at a speed of 120 r.p.m. The utilization factor of this sprinkler will be nearly |
| A. | 0.72 |
| B. | 0.64 |
| C. | 0.56 |
| D. | 0.49 |
| Answer» D. 0.49 | |
| 16. |
Bernoulli’s equation is derived based on the following assumptionsi) There is no loss of energy in a liquid flow and flow is steady.ii) The flow is rotationaliii) Except gravity and pressure forces, no external force acts on liquid flowiv) The flow is viscous, incompressible flow |
| A. | (i) & (iii) |
| B. | (i), (ii) & (iv) |
| C. | (ii) & (iii) |
| D. | (i), (iii) & (iv) |
| Answer» B. (i), (ii) & (iv) | |
| 17. |
A pitot tube measures the: |
| A. | Fluid density |
| B. | dynamic pressure |
| C. | Fluid flow velocity |
| D. | Fluid viscosity |
| Answer» D. Fluid viscosity | |
| 18. |
Euler’s equation in the differential form for the motion of liquids is given by - |
| A. | edp + g⋅dz + v⋅dv = 0 |
| B. | \(\frac{{dp}}{e} + g \cdot dz + v \cdot dv = 0\) |
| C. | \(\frac{{dp}}{e} - g \cdot dz + v \cdot dv = 0\) |
| D. | edp – g⋅dz + v⋅dv = 0 |
| Answer» C. \(\frac{{dp}}{e} - g \cdot dz + v \cdot dv = 0\) | |
| 19. |
Bernoulli’s equation relates to |
| A. | Various forces with change in momentum |
| B. | Torque to change in angular momentum |
| C. | Various form of energy |
| D. | Various forces involved in fluid flow |
| Answer» D. Various forces involved in fluid flow | |
| 20. |
Group I lists a few devices while Group II provides information about their uses. Match the devices with their corresponding use.Group IGroup IIP. Anemometer1. Capillary potential of soil waterQ. Hygrometer2. Fluid velocity at a specific point in the flow streamR. Pitot Tube3. Water vapour content of airS. Tensiometer4. Wind speed |
| A. | P - 1; Q -2; R - 3; S - 4 |
| B. | P - 2; Q - 1; R - 4; S- 3 |
| C. | P - 4; Q - 2; R - 1; S - 3 |
| D. | P - 4; Q - 3; R - 2; S - 1 |
| Answer» E. | |
| 21. |
Pressure at a certain depth below ocean is 1.4 MPa. What is the depth approximately? |
| A. | 14 m |
| B. | 140 m |
| C. | 1400 m |
| D. | None of the above |
| Answer» C. 1400 m | |
| 22. |
A large tank with a nozzle attached contains three immiscible inviscid fluids as shown. Assuming that the changes in h1, h2 and h3 are negligible, the instantaneous discharge velocity is: |
| A. | \(\sqrt {2g{h_3}\left( {1 + \frac{{{\rho _1}{h_1}}}{{{\rho _3}{h_3}}} + \frac{{{\rho _2}{h_2}}}{{{\rho _3}{h_3}}}} \right)}\) |
| B. | \(\sqrt {2g\left( {{h_1} + {h_2} + {h_3}} \right)}\) |
| C. | \(\sqrt {2g\left( {\frac{{{\rho _1}{h_1} + {\rho _2}{h_2} + {\rho _3}{h_3}}}{{{\rho _1} + {\rho _2} + {\rho _3}}}} \right)}\) |
| D. | \(\;\sqrt {2g\left( {\frac{{{\rho _1}{h_2}{h_3} + {\rho _2}{h_3}{h_1} + {\rho _3}{h_1}{h_2}}}{{{\rho _1}{h_1} + {\rho _2}{h_2} + {\rho _3}{h_3}}}} \right)} \) |
| Answer» B. \(\sqrt {2g\left( {{h_1} + {h_2} + {h_3}} \right)}\) | |
| 23. |
In an external mouthpiece, value of coefficient of discharge, if pipe is flowing full, will be |
| A. | 0.602 |
| B. | 0.75 |
| C. | 0.86 |
| D. | 1 |
| Answer» D. 1 | |
| 24. |
A smooth pipe of diameter 500 mm carries water. The pressure in the pipe at Section ‘A’ (elevation: 10 m) is 100 kPa. At section ‘B’ (elevation: 12 m) the pressure is 75 kPa and velocity is 4 m/s. Which of the following is true (g = 10 m/s2) |
| A. | Flow from A to B and head loss is 1 m |
| B. | Flow from A to B and head loss is 0.5 m |
| C. | Flow from B to A and head loss is 0.5 m |
| D. | Flow from B to A and head loss is 0.75 m |
| Answer» C. Flow from B to A and head loss is 0.5 m | |
| 25. |
Euler's equation of motion is a statement of |
| A. | linear momentum conservation for the flow of an inviscid fluid |
| B. | mass conservation |
| C. | energy conservation |
| D. | linear momentum conservation for a real fluid |
| Answer» B. mass conservation | |
| 26. |
A long bent pipe which is used to carry water from a reservoir at a higher elevation to another reservoir at a lower level, when the two reservoirs are separated by a hill is known as ___________. |
| A. | summit |
| B. | syphon |
| C. | spill way |
| D. | none of the above |
| Answer» C. spill way | |
| 27. |
In a pipe network |
| A. | the algebraic sum of discharges around each elementary circuit must be zero |
| B. | the head at each node must be the same |
| C. | the algebraic sum of the piezometric head drops around each elementary circuit is zero |
| D. | the piezometric head loss in each line of a circuit is the same |
| E. | the algebraic sum of the piezometric head drops around each elementary circuit is |
| Answer» D. the piezometric head loss in each line of a circuit is the same | |
| 28. |
A light plane flies at 720 km/hr in standard air at an altitude of 1000 m. Determine the stagnation pressure at the leading edge of the wing. Take, Pair = 9.0 × 104 N/m2, ρ = 1.1 kg/m3. |
| A. | 90 kPa |
| B. | 119 kPa |
| C. | 112 kPa |
| D. | 100 kPa |
| Answer» D. 100 kPa | |
| 29. |
Discharge through a totally submerged orifice is directly proportional to |
| A. | the difference in elevation of water surface |
| B. | the square root of the difference in elevation of water surface |
| C. | the square root of the area of the opening |
| D. | reciprocal of the area of the opening |
| Answer» C. the square root of the area of the opening | |
| 30. |
Match List-I (Measuring devices) with List-II (Measured parameter) and select the correct answer using the options given below the lists.List I(Measuring instrument)List II(Variable to be measured)APilot-tube1Flow static pressureBMicro-manometer2A rate of flow (indirect)CPipe bend meter3Differential pressureDWall pressure tap4Flow stagnation pressure |
| A. | A-1; B-3; C-2; D-4 |
| B. | A-4; B-3; C-2; D-1 |
| C. | A-1; B-2; C-3; D-4 |
| D. | A-4; B-2; C-3; D-1 |
| Answer» C. A-1; B-2; C-3; D-4 | |
| 31. |
In a flow field, at the stagnation point _______. |
| A. | Pressure is zero |
| B. | Velocity of fluid is zero |
| C. | Pressure head is equal to velocity |
| D. | None of these |
| Answer» C. Pressure head is equal to velocity | |
| 32. |
A rotameter is used to measure ________ of fluids. |
| A. | density |
| B. | rotational energy |
| C. | viscosity |
| D. | flow rate |
| Answer» E. | |
| 33. |
Air flows at the rate of 1.5 m3/s through a horizontal pipe with a gradually reducing cross-section as shown in the figure. The two cross-sections of the pipe have diameters of 400 mm and 200 mm. Take the air density as 1.2 kg/m3 and and assume inviscid incompressible flow. The change in pressure (p2 - p1) (in kPa) between sections 1 and 2 is |
| A. | -1.28 |
| B. | 2.56 |
| C. | -2.13 |
| D. | 1.28 |
| Answer» B. 2.56 | |
| 34. |
A pipe 1500 m long and 200 mm in diameter is laid at a slope of 1 in 200 for the first half length and a slope of 1 in 100 for the second half length. The pressure at the upper and lower ends are respectively 1 kg/cm2 (98.1 kN/m2) and 0.5 kg/cm2 (49.05 kN/m2). If coefficient of friction f = 0.04, the discharge in cum/sec will be |
| A. | 0.0324 |
| B. | 0.0415 |
| C. | 0.0489 |
| D. | 0.0521 |
| Answer» B. 0.0415 | |
| 35. |
Bernoulli’s theorem deals with the conservation of |
| A. | Mass |
| B. | Force |
| C. | Momentum |
| D. | Energy |
| Answer» E. | |
| 36. |
Gasoline at 20°C (density = 680 kg/m3) is pumped through a smooth 12 cm diameter pipe, 10 km long, at a flow rate of 75 m3/hr. The inlet is fed by a pump at an absolute pressure of 24 atm. The exit is at standard atmospheric pressure and is 150 m higher. Estimate frictional head loss hf. |
| A. | 199 m |
| B. | 299 m |
| C. | 99 m |
| D. | 399 m |
| Answer» B. 299 m | |
| 37. |
In an iceberg, 15% of the volume projects above the sea surface. If the specific weight of sea water is 10.5 KN/m3, the specific weight of iceberg in KN/m3, is: |
| A. | 12.52 |
| B. | 9.81 |
| C. | 8.93 |
| D. | 7.83 |
| Answer» D. 7.83 | |
| 38. |
Bernoulli's Equation is obtained by |
| A. | Integration of Euler's Equation |
| B. | Differentiation of Euler's Equation |
| C. | Double differentiation of Euler's Equation |
| D. | Newton's law of motion |
| Answer» B. Differentiation of Euler's Equation | |
| 39. |
Bernoulli’s equation is applied to |
| A. | Venturimeter |
| B. | Orifice meter |
| C. | Pitot tube meter |
| D. | All of the above |
| Answer» E. | |
| 40. |
In a siphon, the summit is 5 m above the water level in the tank from which the flow is being discharged. If the head loss from the inlet to the summit is 2.5 m and the velocity head at the summit is 0.5 m, (taking γ = 10 appropriate units) the pressure head at the summit is |
| A. | -80 kPa |
| B. | –3 of water (abs) |
| C. | 5 m of water (abs) |
| D. | 18 m of water (abs) |
| Answer» B. –3 of water (abs) | |
| 41. |
Bernoulli’s theorem applies to _________ flow. |
| A. | Incompressible |
| B. | Steady |
| C. | Non-viscous |
| D. | All of these combined |
| Answer» E. | |
| 42. |
Mouthpieces are used to measure- |
| A. | Velocity |
| B. | Friction |
| C. | Pressure |
| D. | Rate of flow |
| Answer» E. | |
| 43. |
List-I gives 4 dimensionless numbers and List-II gives the types of forces, which are one of the constituents describing the numbers. Match List-I with List-II and select the correct answer using the codes given below the lists.List-I List-IIA. Euler number 1. Pressure forceB. Froude number 2. Gravity forceC. Reynolds number 3. Elastic forceD. Webber number 4. Surface tension 5. Viscous force |
| A. | A-2, B-3, C-4, D-5 |
| B. | A-3, B-2, C-4, D-5 |
| C. | A-1, B-2, C-5, D-4 |
| D. | A-2, B-1, C-5, D-4 |
| Answer» D. A-2, B-1, C-5, D-4 | |
| 44. |
A steady, two dimensional, incompressible flow field is represented by u = x + 3y + 3 and v = 2x- y - 8 in this flow field, the stagnation point is |
| A. | (3, 2) |
| B. | (-3, 2) |
| C. | (-3, -2) |
| D. | (3, -2) |
| Answer» E. | |
| 45. |
A glass tube with a 90° bend is open at both the ends. It is inserted into a flowing stream of oil, S = 0.90, so that one opening is directed upstream and the other is directed upward. Oil inside the tube is 50 mm higher than the surface of flowing oil. The velocity measured by the tube is, nearly, |
| A. | 0.89 m/s |
| B. | 0.99 m/s |
| C. | 1.40 m/s |
| D. | 1.90 m/s |
| Answer» C. 1.40 m/s | |
| 46. |
A horizontal pipe carries water flowing at a velocity of 10 m/s. The static pressure gauge readings at its inlet and outlet were 3 and 2.6 (kgf/cm2). The head loss in the pipe is: |
| A. | 7.7 m water |
| B. | 4 m water |
| C. | 0.4 m water |
| D. | 9 m water |
| Answer» C. 0.4 m water | |
| 47. |
Match List-I (Forces) with List-II (Dimensionless groups) and select the correct answer.List-I List-IIA. Viscous force 1. Reynolds numberB. Elastic force 2. Froude numberC. Surface tension 3. Weber numberD. Gravity 4. Mach number |
| A. | A-1, B-4, C-2, D-3 |
| B. | A-1, B-2, C-4, D-3 |
| C. | A-1, B-4, C-3, D-2 |
| D. | A-3, B-4, C-1, D-2 |
| Answer» D. A-3, B-4, C-1, D-2 | |
| 48. |
Bernoulli’s theorem deals with the law of conservation of: |
| A. | Mass |
| B. | Momentum |
| C. | Energy |
| D. | None of the above |
| Answer» D. None of the above | |
| 49. |
A pipe carrying water tapers from cross section 0.5 m2 at A to 0.2 m2 at B. The average velocity at A is 2 m/s and pressure is 500 kN/m2 (gauge). If the frictional losses are negligible, then pressure at B, which is 5 m above the level of A, would be (assume, gravity acceleration as 10 m/s2 and unit weight of water as 10 kN/m3: |
| A. | 532 kN/m2 |
| B. | 405.5 kN/m2 |
| C. | 439.5 kN/m2 |
| D. | 388.2 kN/m2 |
| Answer» D. 388.2 kN/m2 | |
| 50. |
Calculate the dynamic head (PA - Pstatic) when a jet of water with a velocity, v strikes a flat plate moving with a velocity, u in the same direction as jet. (Take u = 4 m/s, v = 10 m/s and ρ = 1000 kg/m3) |
| A. | 8000 Pa |
| B. | 50000 Pa |
| C. | 18000 Pa |
| D. | 98000 Pa |
| Answer» D. 98000 Pa | |