McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 451. |
A structure whose width is |
| A. | less than |
| B. | more than |
| Answer» A. less than | |
| 452. |
One poise is equal to |
| A. | 0.1 N-s/m2 |
| B. | 1 N-s/m2 |
| C. | 10 N-s/m2 |
| D. | 100 N-s/m2 |
| Answer» A. 0.1 N-s/m2 | |
| 453. |
According to equation of continuity, |
| A. | w1a1 = w2a2 |
| B. | w1v1 = w2v2 |
| C. | a1v1 = a2v2 |
| D. | a1/v1 = a2/v2 |
| Answer» C. a1v1 = a2v2 | |
| 454. |
An air vessel is provided at the summit in a syphon to |
| A. | avoid interruption in the flow |
| B. | increase discharge |
| C. | increase velocity |
| D. | maintain pressure difference |
| Answer» A. avoid interruption in the flow | |
| 455. |
In a venturiflume, the flow takes place at |
| A. | atmospheric pressure |
| B. | gauge pressure |
| C. | absolute pressure |
| D. | none of these |
| Answer» A. atmospheric pressure | |
| 456. |
The discharge over a triangular notch is |
| A. | inversely proportional to H3/2 |
| B. | directly proportional to H3/2 |
| C. | inversely proportional to H5/2 |
| D. | directly proportional to H5/2 |
| Answer» D. directly proportional to H5/2 | |
| 457. |
Kinematic viscosity is the product of dynamic viscosity and the density of the liquid. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 458. |
The total energy of a liquid particle in motion is equal to |
| A. | pressure energy + kinetic energy + potential energy |
| B. | pressure energy - (kinetic energy + potential energy) |
| C. | potential energy - (pressure energy + kinetic energy) |
| D. | kinetic energy - (pressure energy + potential energy) |
| Answer» A. pressure energy + kinetic energy + potential energy | |
| 459. |
The velocity of flow is same at all points in the cross-section of a channel. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 460. |
A notch is used to measure |
| A. | pressure |
| B. | Disagree |
| C. | velocity |
| D. | volume |
| Answer» B. Disagree | |
| 461. |
The most efficient section of a channel is |
| A. | triangular |
| B. | rectangular |
| C. | square |
| D. | trapezoidal |
| Answer» D. trapezoidal | |
| 462. |
An orifice is said to be large, if |
| A. | the size of orifice is large |
| B. | the velocity of flow is large |
| C. | the available head of liquid is more than 5 times the height of orifice |
| D. | the available head of liquid is les than 5 times the height of orifice |
| Answer» D. the available head of liquid is les than 5 times the height of orifice | |
| 463. |
A weir is said to be narrow-crested weir, if the width of the crest of the weir is |
| A. | equal to |
| B. | less than |
| C. | more than |
| Answer» B. less than | |
| 464. |
The rise, in water level, which occurs during the transformation of the unstable shooting flow to the stable streaming flow is called hydraulic jump. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 465. |
Water is a |
| A. | real |
| B. | ideal |
| C. | newtonian |
| D. | non-newtonian |
| Answer» C. newtonian | |
| 466. |
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a |
| A. | notch |
| B. | weir |
| C. | mouthpiece |
| D. | nozzle |
| Answer» C. mouthpiece | |
| 467. |
The body will sink down if the force of buoyancy is |
| A. | equal to |
| B. | less than |
| C. | more than |
| Answer» B. less than | |
| 468. |
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance |
| A. | equal to |
| B. | one-fourth |
| C. | one-third |
| D. | one-half |
| Answer» B. one-fourth | |
| 469. |
The viscosity of water at 20? C is |
| A. | one stoke |
| B. | one centistroke |
| C. | one poise |
| D. | one centipoise |
| Answer» D. one centipoise | |
| 470. |
A thick liquid like a syrup has a |
| A. | lesser |
| B. | greater |
| Answer» B. greater | |
| 471. |
Laminar flow |
| A. | takes |
| B. | does not take |
| Answer» A. takes | |
| 472. |
The surface tension of mercury at normal temperature is |
| A. | same as |
| B. | lower than |
| C. | higher than |
| Answer» C. higher than | |
| 473. |
An error of 1% in measuring head over the apex of the notch (H) will produce an error of |
| A. | 1% |
| B. | 1.50% |
| C. | 2% |
| D. | 2.50% |
| Answer» D. 2.50% | |
| 474. |
The pressure measured with the help of a piezometer tube is in |
| A. | N / mm2 |
| B. | N / m2 |
| C. | head of liquid |
| D. | all of these |
| Answer» C. head of liquid | |
| 475. |
Bulk modulus of a fluid |
| A. | remains same |
| B. | decreases |
| C. | increases |
| Answer» C. increases | |
| 476. |
Gauge pressure at a point is equal to the absolute pressure |
| A. | plus |
| B. | minus |
| Answer» B. minus | |
| 477. |
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance |
| A. | H / 3 |
| B. | H / 2 |
| C. | 2H / 3 |
| D. | 3H / 4 |
| Answer» C. 2H / 3 | |
| 478. |
A weir, generally, used as a spillway of a dam is |
| A. | narrow crested weir |
| B. | broad crested weir |
| C. | Ogee weir |
| D. | submerged weir |
| Answer» C. Ogee weir | |
| 479. |
The ratio of the inertia force to the |
| A. | pressure force |
| B. | elastic force |
| C. | surface tension force |
| D. | viscous force |
| Answer» A. pressure force | |
| 480. |
One litre of water occupies a volume of |
| A. | 100 cm3 |
| B. | 250 cm3 |
| C. | 500 cm3 |
| D. | 1000 cm3 |
| Answer» D. 1000 cm3 | |
| 481. |
The density of air is same at different heights. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 482. |
The maximum discharge over a broad crested weir is |
| A. | 0.384 Cd x L x H1/2 |
| B. | 0.384 Cd x L x H3/2 |
| C. | 1.71 Cd x L x H1/2 |
| D. | 1.71 Cd x L x H3/2 |
| Answer» D. 1.71 Cd x L x H3/2 | |
| 483. |
The centre of pressure acts |
| A. | at |
| B. | above |
| C. | below |
| Answer» C. below | |
| 484. |
The coefficient of discharge is the ratio of theoretical discharge to the actual discharge through an orifice. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 485. |
When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the |
| A. | sum |
| B. | difference |
| C. | arithmatic mean |
| D. | geometric mean |
| Answer» B. difference | |
| 486. |
In the manufacturing of lead shots, the property of surface tension is utilised. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 487. |
If a body floating in a liquid does not return back to its original position, and heels farther away when given a small angular displacement, the body is said to be in neutral equilibrium. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 488. |
The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 489. |
A body floating in a liquid is said to be in a stable equilibrium, if its metacentre coincides with its centre of gravity. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 490. |
The body will float if the force of buoyancy is |
| A. | equal to |
| B. | less than |
| C. | more than |
| Answer» C. more than | |
| 491. |
All the gases are considered to have compressible flow and all the liquids are considered to have incompressible flow. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 492. |
When the venturimeter is inclined, then for a given flow it will show |
| A. | same |
| B. | more |
| C. | less |
| Answer» A. same | |
| 493. |
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will |
| A. | decrease |
| B. | increase |
| C. | remain unchanged |
| D. | depend upon the characteristics of liquid |
| Answer» A. decrease | |
| 494. |
When the Mach number is equal to unity, the flow is called sonic flow. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 495. |
A submerged body is said to be in a stable equilibrium, if its centre of gravity |
| A. | coincides with |
| B. | lies below |
| C. | lies above |
| Answer» B. lies below | |
| 496. |
If a pitot tube is placed with its nose upstream, downstream or sideways, the reading will be the same in every case. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 497. |
The weight per unit volume of a liquid at a standard temperature and pressure is called |
| A. | specific weight |
| B. | mass density |
| C. | specific gravity |
| D. | none of these |
| Answer» A. specific weight | |
| 498. |
The volume per unit mass of a liquid is called specific volume. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 499. |
The flow at critical depth in an open channel is called torrential flow. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 500. |
The reciprocal of Euler's number is called Newton number. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.