Sail E0 Webinar

MCQs

Total Questions : 1935 | Page 4 of 194 pages
Question 31. The number of water level indicators in a boiler are generally __________ in number.
  1.    One
  2.    Two
  3.    Three
  4.    Four
 Discuss Question
Answer: Option B. -> Two
Question 32. The fire tubes in a Cochran boiler usually have _________ diameter.
  1.    6.25 mm
  2.    62.5 mm
  3.    72.5 mm
  4.    92.5 mm
 Discuss Question
Answer: Option B. -> 62.5 mm
Question 33. The fire tubes in a Locomotive boiler has __________ diameter.
  1.    4.75 mm
  2.    5.47 mm
  3.    7.45 mm
  4.    47.5 mm
 Discuss Question
Answer: Option D. -> 47.5 mm
Question 34. Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor)
  1.    pa = pm/K
  2.    pa = pm × K
  3.    pa = K/pm
  4.    pa = pm + K
 Discuss Question
Answer: Option B. -> pa = pm × K
Question 35. The critical pressure ratio (p₂/p₁) is given by
  1.    (p₂/p₁) = [2/(n - 1)] n/(n + 1)
  2.    (p₂/p₁) = [2/(n + 1)] n/(n-1)
  3.    (p₂/p₁) = [(n - 1)/2] n + (1/n)
  4.    (p₂/p₁) = [(n + 1)/2] n - (1/n)
 Discuss Question
Answer: Option B. -> (p₂/p₁) = [2/(n + 1)] n/(n-1)
Question 36. The main object of a boiler trial is
  1.    To determine the generating capacity of the boiler
  2.    To determine the thermal efficiency of the boiler when working at a definite pressure
  3.    To prepare heat balance sheet for the boiler
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 37. The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as
  1.    Feed pump
  2.    Injector
  3.    Feed check valve
  4.    Pressure gauge
 Discuss Question
Answer: Option A. -> Feed pump
Question 38. The function of a safety valve is
  1.    To blow off steam when the pressure of steam inside the boiler exceeds the working pressure
  2.    To indicate the water level inside the boiler to an observer
  3.    To measure pressure of steam inside the steam boiler
  4.    None of the above
 Discuss Question
Answer: Option A. -> To blow off steam when the pressure of steam inside the boiler exceeds the working pressure
Question 39. The function of a piston in a steam engine is
  1.    To guide motion of the piston rod and to prevent it from bending
  2.    To transfer motion from the piston to the cross-head
  3.    To convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment
  4.    None of these
 Discuss Question
Answer: Option C. -> To convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment
Question 40. Adiabatic process is
  1.    Essentially an isentropic process
  2.    Non-heat transfer process
  3.    Reversible process
  4.    Constant temperature process
 Discuss Question
Answer: Option B. -> Non-heat transfer process

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