WorksheetsMES Basic Electricity Chapters 1-3
Total questions: 12
Worksheet time: 6mins
What is this symbol?
Transformer
DC Power Source
Contactor
AC Power Source
If a positively charged body is in contact with a negatively charged body, the electrons will flow from the ___.
positive to the negative body until both become negative
positive to the negative body until both become positive
negative to the positive body until one becomes neutral
negative to the positive body until both have equal charges
Water is made by chemically combining two atoms of oxygen with one atom of hydrogen.
True
False
Substances that allow the free motion, or flow, of electrons are called ___.
conductors
resistors
insulators
transformers
A(n) ______ is capable of identifying hazards or working conditions which are unsanitary and has authorization to take corrective measures to eliminate them.
supervisor
maintenance personnel
competent person
shop foreman
What is this symbol?
Time delay relay, opens after delay
Normally closed high temperature switch
Normally open sail switch
Normally closed float switch, opens on rise in water level
In a cell, the liquid, called the ________, is forcing electrons from one of the plates and depositing them on the other plate.
electrolyte
acid
water
hydrogen
A(n) ___ consists of a zinc container with a carbon rod in the center surrounded by an electrolyte, ammonium chloride, in paste form.
wet cell battery
deep cycle battery
dry cell battery
lithium ion battery
What is this electrical symbol?
Transformer
Relay
Coil
Capacitor
A ___ type battery is a storage battery composed of secondary cells using sulphuric acid for the electrolyte, lead peroxide for the positive plate, and lead for the negative plate.
lithium ion
lead acid
lead sulfate
dry cell
What is this electrical symbol?
Normally open pressure switch
Normally closed float switch
Normally open time delay
Single pole, single throw switch
Thermocouples work by which of the following processes?
Spinning magnets through a coil of wire
Applying great pressure to crystals
Heating two dissimilar metals
Rubbing two objects together and generating friction
