Sail E0 Webinar

MCQs

Total Questions : 3218 | Page 39 of 322 pages
Question 381. In turbulent flow, a rough pipe has the same friction factor as a smooth pipe
  1.    In the zone of complete turbulence
  2.    When the roughness projections are much smaller than the thickness of the laminar film
  3.    Everywhere in the transition zone
  4.    When the friction factor is independent of the Reynold's number
 Discuss Question
Answer: Option B. -> When the roughness projections are much smaller than the thickness of the laminar film
Question 382. In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure __________ the vapor pressure of the liquid at the suction temperature.
  1.    Lower than
  2.    Higher than
  3.    Equal to
  4.    None of these
 Discuss Question
Answer: Option B. -> Higher than
Question 383. Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke's law range is
  1.    24/NRe,p
  2.    16/NRe,p
  3.    64/NRe,p
  4.    48/NRe,p
 Discuss Question
Answer: Option A. -> 24/NRe,p
Question 384. Vena-contracta formed during flow of a liquid through an orificemeter has
  1.    Minimum liquid cross-section
  2.    More diameter compared to orifice diameter
  3.    Minimum velocity of fluid stream
  4.    None of these
 Discuss Question
Answer: Option A. -> Minimum liquid cross-section
Question 385. Hydraulic intensifier is used for increasing the
  1.    Rate of velocity of liquid supply
  2.    Rate of flow through delivery pipeline of a pump
  3.    Intensity of pressure of the liquid
  4.    Momentum rate through delivery pipe
 Discuss Question
Answer: Option C. -> Intensity of pressure of the liquid
Question 386. In case of end to end connection of two or more pipes in series, the __________ each pipe.
  1.    Same rate of flow passes through
  2.    Head loss is same through
  3.    Rate of flow in each pipe is proportional to the length of
  4.    Total flow rate is the sum of flow rate in
 Discuss Question
Answer: Option A. -> Same rate of flow passes through
Question 387. For the manometer set up shown in the figure, the pressure difference PA - PB is given by
  1.    (ρH - ρair)gH
  2.    (ρH - ρL)gH
  3.    (ρH - ρL) gH + (ρL - ρair) . g(L - H)
  4.    (ρH - ρL) gL + (ρL - ρair)gH
 Discuss Question
Answer: Option A. -> (ρH - ρair)gH
Question 388. Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).
  1.    H
  2.    12.6 H
  3.    13.6 H
  4.    14.6 H
 Discuss Question
Answer: Option B. -> 12.6 H
Question 389. The line traced by a single fluid particle as it moves over a period of time is called __________ line.
  1.    Stream
  2.    Path
  3.    Equipotential
  4.    None of these
 Discuss Question
Answer: Option B. -> Path
Question 390. The time of oscillation of a floating body is
  1.    Longer, if metacentric height is increased
  2.    Independent of the metacentric height
  3.    Dependent on the buoyant forces only
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0