Sail E0 Webinar

MCQs

Total Questions : 1113 | Page 13 of 112 pages
Question 121. Which of the following is a copolymer?
  1.    PVC
  2.    Bakelite
  3.    Polythene
  4.    Teflon
 Discuss Question
Answer: Option B. -> Bakelite
Question 122. Which of the following is a copolymer?
  1.    Polystyrene
  2.    SBR
  3.    P.T.F.E.
  4.    Polypropylene
 Discuss Question
Answer: Option B. -> SBR
Question 123. In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer?
  1.    PTFE
  2.    Buna-S
  3.    PMMA
  4.    Polycaprolactum
 Discuss Question
Answer: Option B. -> Buna-S
Question 124. The main use of butadiene is
  1.    As a plasticiser for unsaturated polyester
  2.    In the manufacture of synthetic rubber
  3.    As an anti-skimming agent in paint
  4.    None of these
 Discuss Question
Answer: Option B. -> In the manufacture of synthetic rubber
Question 125. Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is
  1.    Ni
  2.    V₂O₅
  3.    Fe
  4.    Aluminium triethyl combined with titanium tetrachloride
 Discuss Question
Answer: Option D. -> Aluminium triethyl combined with titanium tetrachloride
Question 126. Thermoplastic resins usually
  1.    Remain hard as long as they are hot
  2.    Can not be reclaimed from waste
  3.    Permanent setting resins
  4.    Less brittle than thermosetting resins
 Discuss Question
Answer: Option D. -> Less brittle than thermosetting resins
Question 127. Thermosetting materials
  1.    Are cross-linked molecules
  2.    Soften on application of heat
  3.    Are solvent soluble
  4.    None of these
 Discuss Question
Answer: Option A. -> Are cross-linked molecules
Question 128. Pick out the wrong statement.
  1.    Addition polymers are generally formed by chain growth polymerisation
  2.    Condensation polymers are generally formed by step growth polymerisation
  3.    Teflon is formed by step growth polymerisation
  4.    Bakelite is formed by step growth polymerisation
 Discuss Question
Answer: Option C. -> Teflon is formed by step growth polymerisation
Question 129. Thermosplastic materials
  1.    Do not soften on application of heat
  2.    Are heavily branched molecules
  3.    Are solvent insoluble
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 130. Thiokol is nothing but
  1.    Polysulphide rubber
  2.    Polyamide fibre
  3.    Engineering plastic
  4.    Exponded polystyrene
 Discuss Question
Answer: Option A. -> Polysulphide 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

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