Safety
Full form of PPE
Personal Protective Equipment
Are smoke alarm and Water sprinkler fire safety tools?
Yes
Mention three pin associatiated in three pin plug
Earth pin, Live/phase/line pin, Neutral pin
What is Short Circuit?
Short-circuit is sudden flow of high current when live wire comes into contact with neutral wire.
What are the Elements of fire?
Heat, oxygen & fuel
Give any two safety points for a workplace-
Select the right tools when working.
Wear PPEs.
Switch off the equipment after use.
Give any two examples of Measurement Tool
Scale, thermometer, weighing scale, inch tape, protractor, energy meter, voltmeter, ammeter
How many wires are in a 1 phase and 3-phase?
Single phase has 2 wires (one phase wire , one neutral wire) and
Three phase has 4 wires (3phase wires and 1neutral wire)
Arrange these three in proper manner
RCCB, MCB and Energy Meter
Energy Meter - MCB - RCCB
What is the full form of PASS
Pull, Aim, Squeeze, Sweep
What is Safety Harness?
A safety harness is a form of personal protective equipment (PPE) that is designed to catch a person in case of falling while working at height.
Give any 3 examples of power tools
Glue Gun, drill machine, power saw, flash light, grinder, planer, chain saw, soldering iron
Difference between mechanical and electrical switches?
Mechanical Switches are physical switches, which must be activated physically, by moving, pressing, releasing, or touching its contacts.
Electronic Switches do not require any physical contact in order to control a circuit. These are activated by semiconductor action automatically.
What is conduit wiring? Mention it's types
Electrical conduit is a durable tube or enclosure where electrical wires are enclosed for protection from damage. it protects the wires & individuals who may approach near the electric wires. The material used to make this conduit is plastic or metal.
Concealed and surface conduit wiring
Seperation from oxygen is called
Smothering
What is the use of Safety Mask and Safety Gloves?
Safety Mask protect the mouth and nose from hazards (germs, dust, chemicals, gas, fumes)
Safety Gloves protect a worker's hands from various hazards (chemical exposure, cuts, burns, electrical risks, and other dangers on the job).
What are Electrical Tools? Give any 4 examples
Electrical tools are tools used to work on an electrical system. Voltmeter, hammer, plier, wire stripper, Ammeter, scissor, drill machine, tester, screw driver, screw, nut, nail, ladder
What protection RCD gives,Explain? also tell it’s full form
RCD- Residual Current Device,
Leakage Current and Electrical Shock
Why birds don’t get electrocuted when sitting on wire?
Birds usually stand on single live wire and so electric current doesn't flow through the bird.
How does fire spread?
Conduction, Convection and Radiation
Define PPE
PPEs are equipment worn to minimize exposure to hazards that cause serious workplace injuries and illnesses.
Why right tool is important? Give any two points
The right tools help you work faster and more efficiently, saving time and effort.
What are the protection devices?
MCB- Miniature Circuit Breaker
RCCB/RCD- Residual Current Circuit Breaker/ Residual Current Device
RCBO- Residual Current Circuit Breaker with Overcurrent
What is electrical wiring?
Also mention cleat wiring with examples
Electrical wiring is an installation of cabling through which power is distributed to various devices associated with electricity in a structured manner to ensure a continuous power supply. These devices include fuses, switches, sockets, lights, fans, etc.
Cleated Wiring-This wiring is braided and compounded on walls and ceilings by means of porcelain cleats, wood, or plastic. It is a kind of temporary system and is not suitable for domestic usage.
Eg-under construction building or army camping, exhibition, fair stalls
What is ABC type fire extinguisher called and what is it’s color of the label?
Dry Powder, Blue band