T6A Electrical function and/or schematic
representation of resistor,
switch,
fuse, or battery; resistor construction types, variable and
fixed,
color code, power ratings, schematic symbols
T6A01
@T6A02
What
does a variable resistor or potentiometer do?
A. Its resistance changes when AC is applied to
it
B. It transforms a variable voltage into a
constant voltage
C. Its resistance changes when its slide or
contact is moved
D. Its resistance changes when it is heated
T6A02
@T6A12
Which
symbol of Figure T6-1 represents a fixed resistor?
A. Symbol 2
B. Symbol 3
C. Symbol 4
D. Symbol 5
T6A03
@N6A02
Why
would you use a double-pole, single-throw switch?
A. To switch one input to one output
B. To switch one input to either of two outputs
C. To switch two inputs at the same time, one
input to either of two
outputs,
and the other input to either of two outputs
D. To switch two inputs at the same time, one
input to one output,
and the
other input to the other output
T6A04
@N6A10
In Figure N6-2, which symbol represents a single-pole,
single-throw
switch?
A. Symbol 1
B. Symbol 2
C. Symbol 3
D. Symbol 4
T6A05
@N6A03
Why
would you use a fuse?
A. To create a short circuit when there is too
much current in a
circuit
B. To change direct current into alternating
current
C. To change alternating current into direct
current
D. To create an open circuit when there is too
much current in a
circuit
T6A06
@N6A08
In Figure N6-1, which symbol represents a fuse?
A. Symbol 1
B. Symbol 3
C. Symbol 5
D. Symbol 7
T6A07
@N6A04
Which
of these components has a positive and a negative side?
A. A battery
B. A potentiometer
C. A fuse
D. A resistor
T6A08
@N6A09
In Figure N6-1, which symbol represents a single-cell
battery?
A. Symbol 7
B. Symbol 5
C. Symbol 1
D. Symbol 4
T6A09
@T6A08
Why
would a large size resistor be used instead of a smaller one of
the
same resistance value?
A. For better response time
B. For a higher current gain
C. For greater power dissipation
D. For less impedance in the circuit
T6A10
@T6A05
What do
the first three color bands on a resistor indicate?
A. The value of the resistor in ohms
B. The resistance tolerance in percent
C. The power rating in watts
D. The resistance material
T6A11
@T6A10
Which
tolerance rating would indicate a high-precision resistor?
A. 0.1%
B. 5%
C. 10%
D. 20%