Free Printable Module 7 - Basic Turning

1.

What is the name of drill?

a)

Twist drill

b)

Flat drill

c)

Centre drill

d)

Deep hole drill

2.

What is the name of lathe accessory marked as ‘X’?

a)

Three jaw chuck

b)

Fixed steady rest

c)

Four jaw chcuk

d)

Face plate

3.

What is the personal protective equipment used for

hand protection while lifting loads?

a)

Hand screen

b)

Face shield

c)

Apron

d)

Hand gloves

4.

What is the personal protective equipment used for

leg protection in workshop?

a)

Canvas shoes

b)

Safety shoes

c)

Rubber shoes

d)

Derby shoes

5.

What is the name of part marked as ‘X’?

a)

Head stock

b)

Bed

c)

Cross slide

d)

Feed shaft

6.

What is the personal protective equipment used for eye protection while turning?

a)

Face shield

b)

Hand screen

c)

Safety goggles

d)

Helmet

7.

What is the precaution to be observed while

working on lathe?

a)

Keep the floor and

gangways clean

b)

Wipe out spilt oil

immediately on the

floor

c)

Don’t leave the

chuck key in lathe

chuck

d)

Ensure adequate

light in the workshop

8.

What is the name of lathe accessory?

a)

Follower steady rest

b)

Fixed steady rest

c)

Three jaw self

centering chuck

d)

Four jaw

independent chuck

9.

What is the taper value expressed in gradient?

a)

$\frac{27}{24}$

b)

$\frac{7}{24}$

c)

$\frac{20}{24}$

d)

$\frac{47}{24}$

10.

What is the name of angle marked as ‘X’?

a)

Side clearance angle

b)

Side rake angle

c)

End cutting edge

angle

d)

Front clearance angle

11.

What is the name of angle marked as ‘X’?

a)

Side rake angle

b)

Top rake angle

c)

Front clearance angle

d)

Front clearance angle

12.

What is the name of angle marked as ‘X’?

a)

Side clearance angle

b)

End cutting edge

angle

c)

Side rake angle

d)

Front clearance angle

13.

What is the feed rate for turning in mild steel?

a)

0.2 - 1.0 mm/rev

b)

0.08 - 0.3 mm/rev

c)

0.15 - 0.7 mm/rev

d)

0.2 - 1.00 mm/rev

14.

What is the formula used to find cutting speed in

lathe?

a)

v = $\frac{\pi DN}{10000}$ m/min

b)

v = $\frac{\pi DN}{10000}$ m/sec

c)

v = $\frac{\pi DN}{1000}$ m/min

d)

v = $\frac{\pi DN}{1000}$ m/sec

15.

What is the name of tool used on lathe?

a)

Throw - away type

tools

b)

Solid tools

c)

Inserted bits with

holders

d)

Brazed tools

16.

What is the name of tool?

a)

Round nose

finishing tool

b)

Broad nose finishing

tool

c)

Knife edge tool

d)

Parting off tool

17.

What is the name of lathe operations?

a)

Round groove

b)

‘V’ shaped groove

c)

Square grooves

d)

Step turning

18.

What is the method of taper turning?

a)

Form tool

b)

Tail stock offset

c)

Compound rest

d)

Taper turning

attachment

19.

What type of taper is provided on the tail stock

spindle?

a)

Metric

b)

Morse

c)

Brown and sharpe

d)

Jarno

20.

What type of taper is provided on the shank of

lathe centre?

a)

Brown and Sharpe

b)

Metric

c)

Jarno

d)

Morse

21.

What is the element of taper marked as ‘X’?

a)

Big diameter

b)

Length of taper

c)

Small diameter

d)

Included angle of

taper

22.

Which method of taper turning is used to turn steep

taper?

a)

Tail stock offset

method

b)

Compound rest

method

c)

Form tool method

d)

Taper turning

attachment

23.

What is the formula for turning time calculation?

a)

Time to turn = $\frac{Length\ ofcut\ \times\ r.p.m}{Feed\ \times\ No.ofcuts}$

b)

Time to turn = $\frac{Length\ ofcut\ \times\ No.ofcuts}{Feed\ \times\ r.p.m}$

c)

Time to turn = $\frac{Feed\ \times\ r.p.m}{Length\ of\ cut\ \times No.\ of\ cut}$

d)

Time to turn = $\frac{Feed\ \times\ No.ofcuts}{Length\ of\ cut\times\ r.p.m}$

24.

What is the formula for angle of taper if conicity

given? $\theta=\frac{D-d}{2l}$

a)

$Tan\ \theta=\frac{D-d}{2L}$

b)

$Tan\ \theta=\frac{TPF}{24}$

c)

$Tan\ \theta=\frac{ratio}{2}$

d)

$Tan\ \theta=\frac{D-d}{2l}$

25.

What is the formula used to find spindle speed in

lathe?

a)

$N=\frac{CS\ \times10000}{\pi\text{D}}rpm$

b)

$N=\frac{CS\ \times1000}{\pi\text{D}}rpm$

c)

$N=\frac{CS\ \times100}{\pi\text{D}}rpm$

d)

$N=\frac{CS\ \times10}{\pi\text{D}}rpm$

26.

What is the formula for taper turning in compound

slide method?

a)

$Tan\ \theta=\frac{ratio}{2}$

b)

$Tan\ \theta=\frac{TPF}{24}$

c)

$Tan\ \theta=\frac{D-d}{2L}$

d)

$Tan\ \frac{\alpha}{2}=\frac{D-d}{2\times l}$

27.

What is the formula for taper turning in tailstock offset method?

a)

$Offset=\frac{\left(D-d\right)-L}{2L}$

b)

$Offset=\frac{\left(D-d\right)\times L}{2L}$

c)

$Offset=\frac{\left(D-d\right)+L}{2L}$

d)

$Offset=\frac{\left(D-d\right)\div L}{2L}$

28.

What is the amount of offset for taper turning in

tailstock offset method?

a)

5.33 mm

b)

5.4 mm

c)

5.2 mm

d)

5.5 mm

29.

What is the compound slide swiveling angle for

taper turning?

a)

5° 55’

b)

5° 50’

c)

5° 40’

d)

5° 45’

30.

What is the cutting speed of metal to turn in lathe if

diameter of job 40 mm and spindle speed 238 rpm?

a)

27.62 m/min

b)

25.72 m/min

c)

29.92 m/min

d)

33.52 m/min

31.

What is the rpm of a spindle, if diameter of round

bar is 50 mm and cutting speed 25 m/min?

a)

149 rpm

b)

169 rpm

c)

159 rpm

d)

179 rpm

32.

Why rake angle is provided in single point cutting

tool?

a)

To strengthen the

cutting tool

b)

To permit the cutting

edge to contact work

c)

To control the chip

flow and geometry of

chip

d)

To prevent rubbing

action

33.

What is the purpose of square slot provided on the

top of the pinion of a 3 jaw chuck?

a)

To set the body of

the chuck in spindle

b)

To set the back plate

on machine

c)

To set chuck on

machine

d)

To accommodate chuck key and move the jaws

34.

What is the purpose of reversible jaws in four jaw

chuck?

a)

To hold small

diameter job

b)

To hold hexagonal

job

c)

To hold round or

large diameter job

d)

To hold irregular job

35.

What is the use of three jaw chuck?

a)

To hold cutting tools

b)

To hold irregular shaped jobs

c)

To hold hexagonal work

d)

To hold square objects

36.

Which method of taper turning duplicate tapers are

produced in lathe?

a)

Combined feed

method

b)

Tail stock off set

method

c)

Compound rest

method

d)

Taper turning

attachment

37.

What is the turning time, if diameter of round rod सेकं ड सेकं ड सेकं ड सेकं ड 40 mm and length 100 mm to be turned to ø30 mm

in one cut for full length using HSS tool with a feed

rate 0.2 mm/rev and 238 r.p.m?

a)

2 minute 7.5 seconds

b)

2 minute 4.5 seconds

c)

2 minute 6.0 seconds

d)

2 minute 5.9 seconds

Module 7 - Basic Turning

Total questions: 37

Worksheet time: 19mins

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