*1. The larger diameter of shaft is 125 mm and smaller diameter of the shaft is 95 mm. Find the taper. Assume that length of the job and taper is same. *a) 30

**b) 15**

c) 60

d) none of the mentioned

*2. Pitch of work piece threads=2,
pitch of the lead screw threads=4.
Then, (driver gear/driven gear) =?
*a) 2

b) 4

**c) 0.5**

d) none of the mentioned

*3. Determine the rpm(n) of the shaft. diameter(d)=25 mm, cutting speed(cs)=50 m/min. *

**a) 636.9**

b) 202.83

c) 10.615

d) none of the mentioned

*4. Determine the diameter(d) of the shaft in mm. rpm(n)=25 mm/revolution, cutting speed(cs)=100 mm/min. *a) 21.23

b) 405.47

**c) 1273.2**

d) none of the mentioned

*5. Determine the cutting speed(cs) of the shaft mm/min. diameter(d)=25 mm, rpm(n)=50 mm/revolution *

**a) 3.925**

b) 1.25

c) 7.85

d) none of the mentioned

*6. If the diameter of the work surface before machining(d1) is 100 mm and diameter of the machined surface(d2) is 50 mm. Then the depth of the cut is______ mm. *a) 50

**b) 25**

c) 15

d) none of the mentioned

*7. Find the metal removal rate from the given data (in mm*mm*mm/minute). cutting speed(cs) =50 mm/minute, depth of cut(d)=10mm, feed(f)= o.1 mm/revolution. *

**a) 50**

b) 500

c) 5000

d) none of the mentioned

*8. Find the cutting speed from the given data (in mm/minute). metal removal rate(mrr) =50 mm*mm*mm/minute, depth of cut(d)=1mm, feed(f)= o.1 mm/revolution. *a) 50

**b) 500**

c) 5000

d) none of the mentioned

*9. Find the feed from the given data (in mm/revolution). cutting speed(cs) =50 mm/minute, depth of cut(d)=100mm, metal removal rate(mrr)= 10 mm/revolution. *a) 0.2

b) 0.02

**c) 0.002**

d) none of the mentioned

*10. Number of revolution = 50,
rpm = 100. Find out the machining time.
*

**a) 0.5**

b) 2

c) 4

d) none of the mentioned

*11. In
which operation, motion of job is rotary and motion of cutting tool is forward
translating?
*

**a) turning**

b) planning

c) milling

d) all of the mentioned

View Answer

*12.
Which type of job motion is there in drilling operation?
*a) rotary

b) translating

**c) fixed**

d) none of the mentioned

View Answer

*13. In
which type of operation, motion of cutting tool is translating?
*a) drilling and milling

b) milling and turning

**c) boring and drilling**

d) turning and planning

*14. In which type of operation, motion of cutting tool is rotary as well as translating? *a) planning

b) milling

**c) drilling**

d) turning

*15. Which type of cutting tools have wide application on lathes? *

**a) single point**

b) multi point

c) both single point and multi point

d) none of the mentioned