Measuring Tools Flashcards
What is a general rule in reading measurements?
Always reduce fractions to their lowest terms
How many graduated division marks are there in a rule?
4
What is attached at the end of the tape or rule and normally part of the measurement ?
Hook
What is the best and proper way of measuring bolts and screws?
Holding them up against a rigid rule
How is an outside diameter of a pipe measured?
Using a FLEXIBLE type rule, line up the end of the rule with one side of the pipe then swing the rule through an arc and take the MAXIMUM reading.
What type of caliper has legs with a spring hinge that are linked by a screw?
Spring-joint caliper
How are calipers adjusted?
Pulling and pushing the legs to open or close them
What is the other name of hermaphrodite caliper?
Odd-leg caliper
What is hermaphrodite caliper usually used for?
Locating the center of a shaft or shoulder
What caliper is used for measuring inaccessible outside dimensions?
Transfer firm-joint
What part of the caliper is tightened after taking the measurement?
Binding nut
How many types of micrometers are there ?
4
On a micrometer , how many threads per inch are on a spindle?
40
What scale is used to obtain accurate measurements up to ten-thousandth of an inch?
Vernier scale
What range of increments do the extensions/spindles rods usually come in?
1to2 inches
What is used to measure inside diameter of a pump casing or cylinder
Inside micrometer
What micrometer is used to determine the pitch diameter of a screw
Screw micrometer.