1.

What is the name of first member in a simple gear train?

a)

Driven

b)

Driver

c)

Idler

d)

Reversible gear

2.

What is the name of last member in a simple gear train?

a)

Driven

b)

Idler

c)

Driven

d)

Reversing gear

3.

How many numbers of gears having in a simple gear train?

a)

2

b)

3

c)

4

d)

5

4.

What is the formula used to find flat width of a buttress thread?

a)

b)

c)

d)

5.

What is the angle of saw tooth thread?

a)

29°

b)

30°

c)

45°

d)

90°

6.

What is the type of thread?

a)

Acme thread

b)

Square thread

c)

Worm thread

d)

Saw tooth thread

7.

What does BIS stands for?

a)

Bureau of International Standard

b)

Bureau of Indian Standard

c)

Bureau of International Society

d)

Bureau of Indian Society

8.

Which one is the angle of buttress thread?

a)

30°

b)

45°

c)

55°

d)

60°

9.

What is the type of thread?

a)

Acme

b)

Square

c)

Saw tooth

d)

Buttress

10.

Which formula is used to find crest width of a buttress thread?

a)

0.125 x pitch

b)

0.317 x pitch

c)

0.335 x pitch

d)

0.5 x pitch

11.

Which formula is used to find root width of a buttress thread?

a)

0.125 x pitch

b)

0.317 x pitch

c)

0.335 x pitch

d)

0.5 x pitch

12.

Which formula to be used to find depth of buttress thread?

a)

0.5 x pitch

b)

0.6134 x pitch

c)

0.6403 x pitch

d)

0.75 x pitch

13.

What does Sq 60 x 9 IS 4694-1968 means?

a)

Square Thread 60 mm dia, 9 mm pitch

b)

Buttress thread 60 mm dia x 9 mm pitch

c)

Acme thread 60 mm dia x 9 mm pitch

d)

Worm thread 60 mm dia x 9 mm pitch

14.

What is the type of thread?

a)

Acme thread

b)

Knuckle thread

c)

Buttress thread

d)

Worm thread

15.

Which thread has only one helical formation?

a)

Single start

b)

Double start

c)

Triple start

d)

Quadruple

16.

What is the meaning of M24 in M 24 x 3 single start thread?

a)

Core dia of thread

b)

Major dia of thread

c)

Effective dia of thread

d)

Depth of thread

17.

What is the lead of M 24 x 3.5 triple start thread?

a)

3.5 mm

b)

8.5 mm

c)

10.5 mm

d)

12.8 mm

18.

What is the lead of M 10 x 1.5 double start thread?

a)

2 mm

b)

3 mm

c)

3.5 mm

d)

4 mm

19.

How multi start threads are specified?

a)

By stating dia and pitch

b)

By stating dia and angle of thread

c)

By stating core dia and pitch

d)

By stating dia, pitch, and no. of start

20.

What is the element of square thread marked as ‘x’?

a)

Major diameter

b)

Minor diameter

c)

Core diameter

d)

Pitch diameter

21.

What is the element of square thread marked as ‘x?

a)

Thread width

b)

Thread angle

c)

Helix angle

d)

Thread crest

22.

What is the formula for pitch diameter of thread?

a)

Major diameters - single depth

b)

Major diameters - 2 depth

c)

Major diameters - minor diameter

d)

Major diameter - Pitch

23.

What is the formula to calculate the core dia of the square thread?

a)

Major dia - 2 x depth

b)

Major dia - minor dia

c)

Major dia - Pitch dia

d)

Major dia - Depth of thread

24.

What is the name of angle marked as ‘X’ in thread cutting tool?

a)

Front clearance angle

b)

Side rake angle

c)

Front rake angle

d)

Side clearance angle

25.

What is the name of tool?

a)

Square thread cutting tool

b)

Single point tool

c)

Knurling tool

d)

Form tool

26.

What is the ratio between the pitch diameter and number of teeth of gear?

a)

Tooth thickness

b)

Module

c)

Reddendum

d)

Addendum

27.

Where the knuckle threads are used?

a)

Screw jack

b)

Carpentry vice

c)

Railway carriage couplings

d)

Dead screw of lathe

28.

What is the included angle of acme thread?

a)

55°

b)

45°

c)

30°

d)

29°

29.

Which type of thread is used in lathe head screw?

a)

Acme thread

b)

Buttress thread

c)

Knuckle thread

d)

Square thread

30.

Calculate the pitch diameter of M 64 x 6 mm square thread?

a)

(A) 58 mm

b)

(B) 60 mm

c)

(C) 61 mm

d)

(D) 62 mm

31.

Calculate change gears to cut a three start thread having a pitch of 1.5 mm; the lead screw has a pitch of 6 mm. | 1.5

a)

(A) Driver 45 teeth, Driven 60 teeth

b)

(B) By stating dia and angle of thread

c)

(C) By stating core dia and pitch

d)

(D) By stating dia, pitch, and no. of start

32.

What is the name of device?

a)

(A) Driving plate

b)

(B) Catch plate

c)

(C) Soled faceplate

d)

(D) Cat head

33.

How multi start threads are specified?

a)

(A) By stating dia and pitch

b)

(B) By stating dia and angle of thread

c)

(C) By stating core dia and pitch

d)

(D) By stating dia, pitch, and no. of start

34.

What is the depth of 1/2" BSW 13TPI single start thread? | 1/2" BSW 13TPI

a)

(A) 0.025"

b)

(B) 0.038"

c)

(C) 0.049"

d)

(D) 0.082

35.

What will be the effect in helix angle if diameter changes for a given lead? |

a)

(A) Diameters decreases helix angle increases

b)

(B) Diameters decreases helix angle decreases

c)

(C) No change in helix angle if diameter increases

d)

(D) No change in helix angle diameter decreases

36.

Which type of thread have higher mechanical advantage?

a)

(A) 'V' thread

b)

(B) Acme thread

c)

(C) Square thread

d)

(D) Buttress thread

37.

What will be the effect in helix angle if diameter changes for a given lead? |

a)

(A) Diameters decreases helix angle increases

b)

(B) Diameters decreases helix angle decreases

c)

(C) No change in helix angle if diameter increases

d)

(D) No change in helix angle diameter decreases

38.

Calculate pitch diameter of f 24 x 3 mm square thread? | 24 x 3

a)

(A) 21 mm

b)

(B) 21.5 mm

c)

(C) 22.5 mm

d)

(D) 24 mm

39.

What is the purpose of idler gear in simple gear train?

a)

(A) Reduce gear ratio

b)

(B) Transmit power between driver and driven gears

c)

(C) Reduce spindle speed

d)

(D) Increase spindle speed

40.

What is the advantage of using idler gear in simple gear train? |

a)

(A) Affect gear ratio

b)

(B) Does not affect gear ratio

c)

(C) Change the speed |

d)

(D) Easy to engage

41.

Q. What is the relation between pitch and lead in multistate thread?

a)

(A) Lead = No. start x pitch

b)

(B) Lead = Pitch

c)

(C) Lead = 1/2 pitch

d)

(D) Lead = 1/3 x pitch

42.

Which of the following used buttress thread?

a)

(A) Screw jack

b)

(B) Lead screw of lathe

c)

(C) Carpentry vice

d)

(D) General purpose nut and bolt

43.

Which parameter will decide the driver and driven gear ratio to cut thread on lathe?

a)

(A) Major dia of work

b)

(B) Pitch

c)

(C) Root dia of work

d)

(D) Angle of thread

44.

How many starts in thread?

a)

(A) Triple start

b)

(B) Double start

c)

(C) Single start

d)

(D) Quadruple start

45.

Where multistate threads are used?

a)

(A) For easy alignment

b)

(B) For quick transmission

c)

(C) For easy engagement

d)

(D) For general fastening

46.

What is marked as "X"?

a)

(A) Driven gear

b)

(B) Intermediate gear

c)

(C) Driver gear

d)

(D) Pinion gear

47.

What is the angle of BSW thread?

a)

(A) 60°

b)

(B) 55°

c)

(C) 29°

d)

(D) 45°

48.

How many most important qualities required for tool material?

a)

(A) One

b)

(B) Three

c)

(C) Two

d)

(D) Four

49.

Find the lead of a 2 start thread having pitch 1.5 mm? | 1.5

a)

(A) 1.50 mm

b)

(B) 3.00 mm

c)

(C) 4.50 mm

d)

(D) 6.00 mm

50.

What will be the effect in helix angle if lead changes for a give diameter work? |

a)

(A) Lead decreases helix angle increases

b)

(B) Lead decreases helix angle decreases

c)

(C) Helix angle have no change when lead decreases

d)

(D) Helix angle have no change when lead increases

51.

What is the nose cutter width of the square threads tool?

a)

(A) 0.5 x Pitch

b)

(B) equal to pitch

c)

(C) Pitch / 0.5

d)

(D) 2 x Pitch

52.

What is the change gear ratio? If lead of thread to be cut 7/16" and Lead of lead screw - 4 T.P.I

a)

b)

c)

d)

53.

What is the formula to cut british thread on metric lead screw lathe? |

a)

b)

c)

d)

54.

How many number of teeth gear is used to as translating gear to cut metric thread on British lathe? |

a)

(A) 100

b)

(B) 127

c)

(C) 140

d)

(D) 135

55.

Q. What type of thread is used in screw jack machine?

a)

(A) Acme thread

b)

(B) Square thread

c)

(C) Buttress thread

d)

(D) V-thread

Govt ITI Needamangalam monthly Test February

Total questions: 55

Worksheet time: 28mins

Calculate the pitch diameter of M 64 x 6 mm square thread?

What is the change gear ratio? If lead of thread to be cut 7/16" and Lead of lead screw - 4 T.P.I

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