1. The tool made of cemented carbide wears out faster at _______________ ?

normal speed

slow speed

medium speed

high speed

Answer: slow speed

Explanation:


2. For taper turning and boring ?

the tool should be set below the centre

the tool should be set above the centre

the tool should be set near the centre

the tool should be set exactly the centre

Answer: the tool should be set exactly the centre

Explanation:


3. A turning tool with nose radius is a ?

multiple point tool

single point tool

two point tool

all of these

Answer: single point tool

Explanation:


4. The tip of a cemented carbide tool is joined on the shank by ?

welding

brazing

clamping with a screw

soldering

Answer: brazing

Explanation:


5. The size of the central drill is selected on the basis of the ?

length of the work peace

diameter of the workpiece

material of the workpiece

operation to be performed on the workpiece

Answer: diameter of the workpiece

Explanation:


6. The width of the tool used to cut 10 mm pitch square thread is ?

10 mm

5 mm

7.5 mm

12.5 mm

Answer: 5 mm

Explanation:


7. Which one of the following is not correct for a tool with negative rake angle ?

the cutting edge becomes stronger

reduce cutting force

increase tool wear and decreases tool life

reduce cutting power requirements

Answer: increase tool wear and decreases tool life

Explanation:


8. Which one of the following factors will not influence the selection of the cutting speed ?

diameter of the workpiece

work peace material

tool material

operation to be performed

Answer: diameter of the workpiece

Explanation:


9. Which one of the following angles of the rough turning tool, depends upon the feed rate chosen ?

top rake angle

side rake angle

front clearance angle

side clearance angle

Answer: side clearance angle

Explanation:


10. Which one of the following materials is used for manufacturing central drill ?

HCS

HSS

MS

SS

Answer: HSS

Explanation: