Analog Meters

Question 0

Where is the zero adjust screw on a meter

Answer 0

Front

Question 1

If there is no off switch where should you store the meter

Answer 1

At the highest AC volts setting

Question 2

The purpose for a reset button on the multimeters is

Answer 2

Reset the internal circuit breaker

Question 3

The function of the 0 ohms just knob is for

Answer 3

Compensate for voltage variations in the internal battery

Question 4

The current for full-scale deflection in meter movement rarely exceeds

Answer 4

50 mA

Question 5

What indication will result with a break in the test lead of any voltage tester

Answer 5

0 V

Question 6

Neon type testers usually not used on circuits less than

Answer 6

90 V

Question 7

What type of tester will identify specific wiring faults on 120 V branch receptacles

Answer 7

Outlet tester

Question 8

When a solenoid and plunger voltage tester is connected to a voltage source on what does the position of the indicating disk depend

Answer 8

Strength of field which is proportionate to voltage

Question 9

What neon signal identifies that the voltage under test is DC

Answer 9

Only one neon lamp lights up

Question 10

If a voltage tester disc vibrates

Answer 10

An AC voltage is being tested

Question 11

Which category of voltages is the solenoid and plunger tester ideal for

Answer 11

Nominal voltages

Question 12

How long can a solenoid and plunger tester be connected to voltage

Answer 12

20 seconds

Question 13

What is the maximum nominal voltage value of the solenoid and plunger voltage tester can be used on

Answer 13

600 V

Question 14

A voltmeter sensitivity and the solenoid and plunger voltage tester sensitivity

Answer 14

Are the same

Question 15

Voltmeters are connected in

Answer 15

Parallel

Question 16

What do you do before testing a dc voltage?

Answer 16

Check leads have correct polarity.

Question 17

Why keep meters dry and clean

Answer 17

So to not cause flashover

Question 18

Meter leads that are damaged

Answer 18

Should be replaced

Question 19

Why can testing a battery be a safety hazard

Answer 19

Cause short circuit and explode

Question 20

How is a shunt connected in relation to the galvanometer?

Answer 20

Parallel

Question 21

Shunt device has a very what resistance?

Answer 21

Low

Question 22

Why are shunts made of materials with low temp coefficient?

Answer 22

Ensure minimal resistance change

Question 23

Full scale deflection current in a meter movement can be as low as

Answer 23

5 micro amps

Question 24

Why do you have a make before break switch in ammeter?

Answer 24

Prevent excess current flow in movement

Question 25

Full scale current ratings in ammeter vary from

Answer 25

5 micro amps to 50 milliamps

Question 26

Better sensitivity is

Answer 26

A lower amp rating

Question 27

What kind of circuit is most affected by using an ammeter with poor sensitivity?

Answer 27

Love voltage/low power

Question 28

Ideal theoretical resistance of ammeter is

Answer 28

Zero

Question 29

Why not use larger shunts in the meter

Answer 29

Too big | Too much heat

Question 30

Manganin has

Answer 30

Low temp coefficient

Question 31

Ac clamp ammeter uses the principle of

Answer 31

Transformer

Question 32

Conductor of 2.2A is looped four times the scale should be

Answer 32

2.2x4=8.8

Question 33

Disadvantage of tong tester

Answer 33

Only one range

Question 34

Shunt resistor

Answer 34

Low mid scale

Question 35

Ohm meters all have what kind of scales

Answer 35

Non-linear

Question 36

2 types of ohm meters

Answer 36

Series | Shunt

Question 37

Series ohm meter high resistance values on the

Answer 37

Left

Question 38

In the shunt ohm meter the high resistance values are on the

Answer 38

Right

Question 39

What ohm meter used for low resistance?

Answer 39

Shunt

Question 40

Disadvantages of shunt ohm meter

Answer 40

Power discharges as soon as meter is turned on

Question 41

What ohm meter in multimeter?

Answer 41

Series

Question 42

What function rheostat in ohm meter

Answer 42

Compensate for battery

Question 43

Never connect an ohm meter to

Answer 43

A live circuit

Question 44

2 uses for ohm meter

Answer 44

Continuity | Resistance

Question 45

Infinity reading on an ohm meter means

Answer 45

Open circuit

Question 46

If the ohm meter leads are separate you will get a reading of

Answer 46

Infinity

Question 47

If the ohm meter leads are touching you will get a

Answer 47

Zero reading

Question 48

Megger is used for testing

Answer 48

High resistance | Insulation resistance

Question 49

Typical Megger output

Answer 49

100-1000V

Question 50

3 things when connecting ohm meter

Answer 50

Make sure not energized Zero meter Isolate at least one side

Question 51

Why does polarity of the leads of a multimeter reverse when used for resistance?

Answer 51

Meter changes from a load to a supply

Question 52

When testing capacitors

Answer 52

Discharge them

Question 53

Precautions with a Megger

Answer 53

Don't connect to energized circuit Don't use in low voltage circuits Charges can be built up in Megger