ELECTRICAL CRAFT HELPER
EXAM WITH QUESTIONS AND
ANSWERS
a molecule of matter can be divided chemically into smaller particles
called? - ANSWER atoms
matter consisting of all the same kind of atoms is called an? -
ANSWER element
matter consisting of two or more different kinds of atoms is called a?
- ANSWER compound
the negative charge of a single electron is called a? - ANSWER unit
electrical charge
most of the mass of an atom is in the? - ANSWER nucleus
when an atom gains an electron, it is called? - ANSWER negative ion
copper is a good conductor, because the copper atom loosely holds
it's? - ANSWER valence
gold and silver are good conductor of electricity, because the outer
orbits have? - ANSWER one electron
when teo negatively charged rods are brought together, they? -
ANSWER repel each other
one ampere is equal to? - ANSWER 1 coulomb flowing per second
what happens when two unlike materials are rubbed together and
, then separated? - ANSWER one will be positive and the other
negative
connecting two or more metallic objects with a wire or metal strap is
called? - ANSWER bonding
grounding minimizes the voltage difference between an object and? -
ANSWER ground
humidity has no effect in controlling a static charge on the surface
of? - ANSWER only liquids.
a static charge is generated by liquids when the liquids are? -
ANSWER moving and contact other materials
the charges on the surface of a liquid in a container can be made
harmless if the container is? - ANSWER purged
greater static charges are developed on smooth surfaced materials
than on rough surfaced materials because of the? - ANSWER larger
surface contact
what is applied to rubber or that leather belts to prevent the
generation of static charges? - ANSWER a conductive dressing
the vest way to remove static electricity from machines is to? -
ANSWER ground the framework
dust can be removed from the and in a plant by the use of a? -
ANSWER electrostatic precipitation
the six primary methods of producing a voltage are chemical action ,
magnetism, friction, - ANSWER heat, light, and pressure
electricity is produced by chemical action in a?p - ANSWER storage
battery cell
EXAM WITH QUESTIONS AND
ANSWERS
a molecule of matter can be divided chemically into smaller particles
called? - ANSWER atoms
matter consisting of all the same kind of atoms is called an? -
ANSWER element
matter consisting of two or more different kinds of atoms is called a?
- ANSWER compound
the negative charge of a single electron is called a? - ANSWER unit
electrical charge
most of the mass of an atom is in the? - ANSWER nucleus
when an atom gains an electron, it is called? - ANSWER negative ion
copper is a good conductor, because the copper atom loosely holds
it's? - ANSWER valence
gold and silver are good conductor of electricity, because the outer
orbits have? - ANSWER one electron
when teo negatively charged rods are brought together, they? -
ANSWER repel each other
one ampere is equal to? - ANSWER 1 coulomb flowing per second
what happens when two unlike materials are rubbed together and
, then separated? - ANSWER one will be positive and the other
negative
connecting two or more metallic objects with a wire or metal strap is
called? - ANSWER bonding
grounding minimizes the voltage difference between an object and? -
ANSWER ground
humidity has no effect in controlling a static charge on the surface
of? - ANSWER only liquids.
a static charge is generated by liquids when the liquids are? -
ANSWER moving and contact other materials
the charges on the surface of a liquid in a container can be made
harmless if the container is? - ANSWER purged
greater static charges are developed on smooth surfaced materials
than on rough surfaced materials because of the? - ANSWER larger
surface contact
what is applied to rubber or that leather belts to prevent the
generation of static charges? - ANSWER a conductive dressing
the vest way to remove static electricity from machines is to? -
ANSWER ground the framework
dust can be removed from the and in a plant by the use of a? -
ANSWER electrostatic precipitation
the six primary methods of producing a voltage are chemical action ,
magnetism, friction, - ANSWER heat, light, and pressure
electricity is produced by chemical action in a?p - ANSWER storage
battery cell
