Deck 25: Scale Reading of Test Meters

Question 1

If you read a meter from an angle, you will get an incorrect reading. This problem is called ____________________.

Answer 1

parallax

Question 2

When reading a meter, it is very important that you ____.

A) hold it at eye level
B) make sure it is varying
C) make sure it is digital
D) be directly in front of it

Answer 2

be directly in front of it

Question 3

Read the voltmeter in the accompanying figure to the nearest tenth of a volt. The switch is set to 24.

A) 27.3
B) 27.6
C) 27.9
D) 28.2

Answer 3

27.6

Question 4

Read the voltmeter in the accompanying figure to the nearest tenth of a volt. The switch is set to 8.

A) 6.4
B) 6.5
C) 6.7
D) 6.9

Question 5

Technicians are required to use both digital and ____________________ (a scale with a movable needle) type meters.

Question 6

Read the voltmeter in the accompanying figure to the nearest tenth of a volt. The switch is set to 24.

A) 27.0
B) 27.6
C) 28.2
D) 28.8

Question 7

Read the voltmeter in the accompanying figure to the nearest hundredth of a volt. The switch is set to 8.

A) 6.55
B) 6.65
C) 6.70
D) 6.75

Question 8

In the accompanying figure, which scales are to be used for hydrocarbon and carbon monoxide, respectively?

A) Lo, Lo
B) Hi, Lo
C) Lo, Hi
D) Hi, Hi

Question 9

Read the voltmeter in the accompanying figure to the nearest tenth of a volt. The switch is set to 16.

A) 14.1
B) 14.2
C) 14.3
D) 14.4

Question 10

Sometimes, the needle on the meter swings back and forth. This is called ____________________.