Trade Theory House wiring Quiz

What is the name of the part marked 'X' in UG cables?

• Jute filling

• Armouring

• Lead sheath

• Paper insulation

What is the purpose of 'serving' layer in underground cable?

• Protect the cable from moisture

• Protect the cable from mechanical injury

• Protect metallic sheath against corrosion

• Protect armouring from atmospheric condition

Which cable laying method is used in generating station?

• In ducts

• Racks in air

• Along buildings

• Direct in ground

What is the name of the part marked 'X' in UG cables?

• Serving

• Bedding

• Armouring

• Lead sheath

Which method of cable laying is suitable for congested areas?

• Racks in air

• Duct pipes

• Along buildings

• Direct in ground

Which part of the underground cable is protecting the metallic sheath against corrosion?

• Serving

• Bedding

• Armouring

• Lead sheath

Which type of wire joint is found in the junction box?

• Aerial tap joint

• Plain tap joint

• Rat tail joint

• Married joint

Which is the application of series circuit?

• Fuse in circuit

• Voltmeter connection

• Electrical lamp in homes

• Shunt resistor in ammeter

Which test is conducted to locate the faults in U.G. cables?

• Loop test

• External growler test

• Break down voltage test

• Insulation resistance test

Which type of joint is used in over head lines for high tensile strength?

• Scarfed joint

• Britannia 'T' joint

• Western union joint

• Britannia straight joint