1. A dynamometer is a device used for the measurement of ?

chip thickness ratio

forces during metal cutting

wear of the cutting tool

deflection of the cutting tool

Answer: forces during metal cutting

Explanation:


2. A feed gear box for a screw cutting lathe is designed on the basis of ?

geometric progression

arithmetic progression

harmonic progression

none of these

Answer: geometric progression

Explanation:


3. The different spindle speeds on a lathe form ?

arithmetical progression

geometrical progression

harmonical progression

any one of these

Answer: geometrical progression

Explanation:


4. An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as ?

counter-boring

grooving

knurling

facing

Answer: knurling

Explanation:


5. The tool material, for faster machining, should have ?

wear resistance

red hardness

toughness

all of these

Answer: all of these

Explanation:


6. A taper tap has ?

its end tapered for about three or four threads

its end tapered for about eight or ten threads

full threads for the whole of its length

none of the above

Answer: its end tapered for about eight or ten threads

Explanation:


7. In machining metal, cutting force at the cutting edge is measured by a ?

wattmeter

dynamometer

hydrometer

pyrometer

Answer: dynamometer

Explanation:


8. Chip breakers are used to ?

increase tool life

remove chips from bed

break the chips into short segments

to minimise heat generation

Answer: break the chips into short segments

Explanation:


9. When the end of a tap is tapered for about three or four threads, it is known as a ?

taper tap

bottoming tap

second tap

any one of these

Answer: second tap

Explanation:


10. When the tool moves parallel to the lathe axis, the movement is termed as ?

cross feed

angular feed

longitudinal feed

any one of these

Answer: longitudinal feed

Explanation: