Sail E0 Webinar

MCQs

Total Questions : 515 | Page 46 of 52 pages
Question 451. Sillimanite is a __________ refractory.
  1.    basic
  2.    neutral
  3.    high alumina
  4.    insulating
 Discuss Question
Answer: Option C. -> high alumina
Answer: (c).high alumina
Question 452. Which of the following bricks has the most close values of RUL and PCE ?
  1.    Silica bricks
  2.    Fireclay bricks
  3.    High alumina bricks
  4.    Tar dolomite bricks
 Discuss Question
Answer: Option A. -> Silica bricks
Answer: (a).Silica bricks
Question 453. Conversion of silica mineral to cristobalite is accompanied by reduction in its
  1.    volume
  2.    specific gravity
  3.    both (a) & (b)
  4.    neither (a) nor (b)
 Discuss Question
Answer: Option B. -> specific gravity
Answer: (b).specific gravity
Question 454. Chrome magnesite is not used in the
  1.    inner lining of L.D. converter.
  2.    aluminium melting furnaces.
  3.    wear out lining of steel melting furnaces.
  4.    all (a), (b) and (c)
 Discuss Question
Answer: Option C. -> wear out lining of steel melting furnaces.
Answer: (c).wear out lining of steel melting furnaces.
Question 455. High refractorinness of refractory bricks means, that it has a
  1.    high spalling resistance.
  2.    low spalling resistance.
  3.    high resistance to fusion.
  4.    low porosity.
 Discuss Question
Answer: Option C. -> high resistance to fusion.
Answer: (c).high resistance to fusion.
Question 456. Which of the following low molecular weight (<10⁴ ), soft & waxy polymer is used in chewing gum ?
  1.    Cellulose acetate
  2.    Polyvinyl acetate
  3.    Thiokol
  4.    PVC
 Discuss Question
Answer: Option B. -> Polyvinyl acetate
Answer: (b).Polyvinyl acetate
Question 457. Buna-S is a __________ material.
  1.    fibrous
  2.    plastic
  3.    resinous
  4.    rubbery
 Discuss Question
Answer: Option D. -> rubbery
Answer: (d).rubbery
Question 458. Zeigler - Natta catalyst (AlR₃ - AlCl₃) is used in the polymerisation of
  1.    vinyl acetate
  2.    vinyl chloride
  3.    propylene
  4.    styrene
 Discuss Question
Answer: Option C. -> propylene
Answer: (c).propylene
Question 459. Neoprene is a
  1.    monomer
  2.    synthetic rubber
  3.    polyester
  4.    none of these
 Discuss Question
Answer: Option B. -> synthetic rubber
Answer: (b).synthetic rubber
Question 460. Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
  1.    cold SBR
  2.    butyl rubber
  3.    Bunai N
  4.    Buna S
 Discuss Question
Answer: Option B. -> butyl rubber
Answer: (b).butyl rubber

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

GPOE / GPA Combined 1 Free Mock Test SAIL JO E-0 2024
ICA Combined 1 Free Revision Test SAIL JO E-0
RDIC Review Test SAIL JO E-0
Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
RSP Combined 1 Free Revision Test SAIL JO E-0