1. The type of tool used on lathe, shaper and planer is ?

single point cutting tool

two point cutting tool

three point cutting tool

multi-point cutting tool

Answer: single point cutting tool

Explanation:


2. The lead screw of a lathe has.................threads ?

single start

double start

multi-start

any one of these

Answer: single start

Explanation:


3. The rake angle of a single point cutting tool corresponds to... of a twist drill ?

lip clearance angle

helix angle

point angle

chisel edge angle

Answer: helix angle

Explanation:


4. Small nose radius ?

increases tool life

decreases tool life

produces chipping and decreases tool life

results in excessive stress concentration and greater heat generation

Answer: results in excessive stress concentration and greater heat generation

Explanation:


5. The trade name of a non-ferrous cast alloy composed of cobalt, chromium and tungsten is called ?

ceramic

satellite

diamond

cemented carbide

Answer: satellite

Explanation:


6. Segmental chips are formed during machining ?

mild steel

cast iron

high speed steel

high carbon steel

Answer: cast iron

Explanation:


7. The main purpose of a boring operation, as compared to drilling, is to ?

drill a hole

finish the drilled hole

correct the hole

enlarge the existing hole

Answer: enlarge the existing hole

Explanation:


8. Ceramic tools are fixed to tool body by ?

soldering

brazing

welding

clamping

Answer: brazing

Explanation:


9. The operation of smoothing and squaring the surface around a hole is known as ?

counter-sinking

counter-boring

trepanning

spot facing

Answer: spot facing

Explanation:


10. A left hand tool on a lathe cuts most efficiently when it travels ?

from left to right end of the lathe bed

from right to left end of the lathe bed

with the help of a compound slide

across the bed

Answer: from left to right end of the lathe bed

Explanation: