Insulators MCQs | Insulators Multiple Choice Questions and Answers

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
1 What is the other name of Polymer Insulator?
A Composite insulator
B Moisture insulator
C Core insulator
D Mixed insulator

Answer: Composite insulator
2 What is the other name of shackle insulator?
A String
B Hanging
C Spool
D Post

Answer: Right hand
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
3 What is the dielectric strength, coefficient of thermal expansion of glass with respect to porcelain insulators?
A High, high
B Low, low
C High, low
D None of these

Answer: High, low
4 How many classifications of overhead line insulators are there?
A 5
B 7
C 3
D None

Answer: 3
5 Which of the following material is not used for overhead line insulators?
A Porcelain
B Glass
C PVC
D Steatite

Answer: PVC
6 Which of the following is the main field of application of pin type insulator?
A EHV transmission system
B Transmission and distribution system
C Transmission system
D Distribution system

Answer: Distribution system
7 A transmission line consists of 9 discs of suspension insulator in each string. What is the operating voltage of the transmission line?
A 132 KV
B 11 KV
C 33 KV
D None of these

Answer: 132 KV
8 Which of the following insulator is similar to pin type insulator?
A Suspension insulator
B Shackle insulator
C Strain insulator
D Post insulator

Answer: Post insulator
9 What is the most common cause of failure of overhead line insulators?
A Improper vitrification
B Mechanical stress
C Porosity of materials
D Flashover

Answer: Flashover
10 If a string of suspension insulator has three units, each can withstand a maximum 11 KV and total string can withstand 25.76 KV. What is the string efficiency?
A 78%
B 234.1%
C 46.3%
D 68.75%

Answer: 78%
11 What is the property of insulating materials?
A Allows the unwanted flow of current
B Increases the unwanted flow of current
C Decreases the unwanted flow of current
D Prevents the unwanted flow of current

Answer: Prevents the unwanted flow of current
12 What happens when some serious phenomenon occurs in the insulators?
A Insulator body bulges
B Insulator body bursts
C Insulator body tears apart
D Puncher is produced in the insulator body

Answer: Puncher is produced in the insulator body
13 How should the properties of strength and dielectric strength in insulating materials?
A High strength, high Dielectric strength
B Low strength, low Dielectric strength
C High strength, low Dielectric strength
D Low strength, high Dielectric strength

Answer: High strength, high Dielectric strength
14 What is the dielectric strength of porcelain insulators?
A 50 kV/cm
B 40 kV/cm
C 140 kV/cm
D 60 kV/cm

Answer: 60 kV/cm
15 Pin type insulator are mostly subjected to which type of mechanical stress?
A Twisting stress
B Compressive stress
C Tensile stress
D Both tensile and compressive stress

Answer: Twisting stress
16 Suspension type insulator are subjected to ______________
A compressive stress
B tensile and compressive stress
C depends on its use
D tensile stress

Answer: tensile stress
17 Suspension insulator are made up of _____________
A porcelain
B glass
C steatite
D epoxy resin

Answer: porcelain
18 Voltage distribution across disc of strings of suspension insulator assembly is ______
A same for all disks
B maximum for unit nearest to the line
C equal to transmission line voltage rating
D maximum for unit nearest to the tower

Answer: maximum for unit nearest to the line
19 In Transmission and Distribution sector, where should the insulators be placed?
A Between towers and poles
B Between towers and ground
C Between towers and conductors
D Between conductors and ground

Answer: Between towers and conductors
20 What is the main cause for the failure of overhead line insulators?
A Flashover
B Surges
C Arching
D Grounding

Answer: Flashover

Random GK Questions

Q. Which one of the following right of Indian Constitution guarantees all the fundamental rights to every resident of country ?
Q. What is the longest mountain range in the world ?
Q. Trade winds are due to :
Q. Which is the highest law of the land?
Q. Toxicology is related to the study of
Q. Which fundamental right of Indian constitution has been deleted by the 44th Amendment Act ?
Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series