Sail E0 Webinar

MCQs

Total Questions : 164 | Page 16 of 17 pages
Question 151. The disadvantage with paper as insulating material is____________?
  1.    it is hygroscopic
  2.    it has high capacitance
  3.    it is an organic material
  4.    none of the above
 Discuss Question
Answer: Option A. -> it is hygroscopic
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 152. Copper as conductor for cables is used as________?
  1.    annealed
  2.    hardened and tempered
  3.    hard drawn
  4.    alloy with chromium
 Discuss Question
Answer: Option A. -> annealed
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 153. The breakdown voltage of a cable depends on_____________?
  1.    presence of moisture
  2.    working temperature
  3.    time of application of the voltage
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 154. Cables for 220 kV lines are invariably____________?
  1.    mica insulated
  2.    paper insulated
  3.    compressed oil or compressed gas insulated
  4.    rubber insulated
  5.    none of the above
 Discuss Question
Answer: Option C. -> compressed oil or compressed gas insulated
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 155. The advantage of oil filled cables is_________?
  1.    more perfect impregnation
  2.    smaller overall size
  3.    no ionisation, oxidation and formation of voids
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 156. The thickness of metallic shielding on cables is usually_______________?
  1.    0.04 mm
  2.    0.2 to 0.4 mm
  3.    3 to 5 mm
  4.    40 to 60 mm
 Discuss Question
Answer: Option A. -> 0.04 mm
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 157. Underground cables are laid at sufficient depth___________?
  1.    to minimise temperature stresses
  2.    to avoid being unearthed easily due to removal of soil
  3.    to minimize the effect of shocks and vibrations due to gassing vehicles, etc
  4.    for all of the above reasons
 Discuss Question
Answer: Option C. -> to minimize the effect of shocks and vibrations due to gassing vehicles, etc
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 158. The electrostatic stress in underground cables is_________?
  1.    same at the conductor and the sheath
  2.    minimum at the conductor and maximum at the sheath
  3.    maximum at the conductor and minimum at the sheath
  4.    zero at the conductor as well as on the sheath
  5.    none of the above
 Discuss Question
Answer: Option C. -> maximum at the conductor and minimum at the sheath
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 159. The advantage of cables over overhead transmission lines is___________?
  1.    easy maintenance
  2.    low cost
  3.    can be used in congested areas
  4.    can be used in high voltage circuits
 Discuss Question
Answer: Option C. -> can be used in congested areas
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 160. A cable carrying alternating current has__________?
  1.    hysteresis losses only
  2.    hysteresis and leakage losses only
  3.    hysteresis, leakage and copper losses only
  4.    hysteresis, leakage, copper and friction losses
 Discuss Question
Answer: Option B. -> hysteresis and leakage losses only
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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