1. While laying out, the vernier hight gauge must be used on the ?

any flat surface

machine bed

surface plate

V-block

Answer: surface plate

Explanation:


2. Which device is used to measure earthquakes ?

seismograph

cyanometer

anemometer

coulombmeter

Answer: seismograph

Explanation:


3. The instrument used for measuring air pressure is called ?

barometer

thermometer

hygrometer

anemometer

Answer: barometer

Explanation:


4. In a micrometer a rachet (friction stop) is used for ?

the datum line

slipping when certain amount of pressure exceeds

locking the device

clamping

Answer: slipping when certain amount of pressure exceeds

Explanation:


5. One decimeter is equivalent to _________ centimetre ?

0.1.

100

0.01

10

Answer: 10

Explanation:


6. If the zero graduation of the thimble of an out side micrometer is below the datum line, when the measuring face of the micrometer are in contact error is ?

negative

none

positive

zero

Answer: positive

Explanation:


7. Instrument for measuring low temperatures is called ?

anemometer

hygrometer

thermometer

barometer

Answer: thermometer

Explanation:


8. Which of the following instruments is used for checking flatness and squareness of a surface ?

bavel gauge

slip gauge

vernier height gauge

try square

Answer: try square

Explanation:


9. On which part of the vernier bavel protector, are the vernier scale divisions graduated ?

dial

disc

blade

stock

Answer: dial

Explanation:


10. Rachet stop in the micrometer helps to ?

hold the workpiece

control the pressure

adjust zero error

lock the spindle

Answer: control the pressure

Explanation: