Sail E0 Webinar

MCQs

Total Questions : 3103 | Page 8 of 311 pages
Question 71. Main constituents of portland cement are calcium aluminate and
  1.    Gypsum
  2.    Silicates
  3.    Sodium silicate
  4.    Carbonates
 Discuss Question
Answer: Option B. -> Silicates
Question 72. A mineral is termed as 'ore', if
  1.    A metal can be economically extracted from it
  2.    It contains ≥ 40% metal
  3.    The metal present in it is costly
  4.    All of the above
 Discuss Question
Answer: Option A. -> A metal can be economically extracted from it
Question 73. Pick out the wrong statement.
  1.    High early strength cement are made from materials having high silica to lime ratio
  2.    The function of gypsum in cement is to enhance its initial setting rate
  3.    Acid resistant cements are known as silicate cement
  4.    Major component of greyish portland cement is tricalcium silicate
 Discuss Question
Answer: Option A. -> High early strength cement are made from materials having high silica to lime ratio
Question 74. Which of the following is not produced on commercial scale from sea water?
  1.    Bromine
  2.    Magnesium compounds
  3.    Potassium compounds
  4.    Sodium sulphate
 Discuss Question
Answer: Option D. -> Sodium sulphate
Question 75. Reverse osmosis is normally used for the
  1.    Separation of isotopes of uranium from gaseous uranium hexaflouride
  2.    Separation of helium from natural gas
  3.    Desalination of brackish water to produce potable (drinking) water
  4.    Purification of oxygen
 Discuss Question
Answer: Option C. -> Desalination of brackish water to produce potable (drinking) water
Question 76. The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at
  1.    SASOL (in South Africa)
  2.    Redcar (U.K.)
  3.    Los-Angles (U.S.A.)
  4.    Trombay (India)
 Discuss Question
Answer: Option A. -> SASOL (in South Africa)
Question 77. In an integrated steel plant, NH₃ present in coke oven gas is normally recovered as
  1.    (NH₄)2SO₄
  2.    NH₄Cl
  3.    (NH₄)2 NO₃
  4.    Liquid NH₃
 Discuss Question
Answer: Option A. -> (NH₄)2SO₄
Question 78. Fermentation is adversely affected by the
  1.    Presence of air
  2.    Absence of air
  3.    High concentration
  4.    Presence of ammonium salts
 Discuss Question
Answer: Option C. -> High concentration
Question 79. Pick out the wrong statement.
  1.    Pasteurisation of milk involves moderate heating followed by cooling
  2.    Bakeries and breweries make use of yeasts
  3.    Enzyme is a complex nitrogenous compound
  4.    Oils and fats are alkaloids
 Discuss Question
Answer: Option D. -> Oils and fats are alkaloids
Question 80. Nitrogen is an essential component of
  1.    Mineral salts
  2.    Carbohydrates
  3.    Fats
  4.    Proteins
 Discuss Question
Answer: Option D. -> Proteins

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