MACHINIST 3rd SEM MCQ QUESTION ANSWER - 5

  MACHINIST 3rd SEM MCQ QUESTION ANSWER - 5

61 What types of gear is are in automotive differential gear boxes? 

A Worm and Worm gear 

B Rack and Pinion gear

C Hypoid gear 

D Angular gear

Correct Answer:- C Hypoid gear 

62 Which mechanism is used to convert rotary motion into reciprocating motion?

A Worm and Worm gear

B Helical gear set 

C Bevel gear and Hypoid gear

D Rack and Pinion

Correct Answer:- D Rack and Pinion

63 How the pitch of a rack is specified? 

A In addendum 

B In depth 

C In linear 

D In module

Correct Answer:- C In linear 

64 Where is rack milling attachment fixed on a milling machine?

A Between the knee and Elevation screw

B the face of the column and Arbor support

C Between the saddle and Knee

D Between the column and Knee

Correct Answer:- B the face of the column and Arbor support

65 Which part has the movable jaw of gear tooth vernier caliper?

A Vertical sliding head 

B Horizontal sliding 

C Fine adjustment head 

D Vertical slide blade

Correct Answer:- B Horizontal sliding 

66 Which instrument is very similar to the principle of a veriner caliper?

A Micrometer 

B Bevel protractor 

C Gear tooth vernier caliper

D Steel rule

Correct Answer:- C Gear tooth vernier caliper

67 What is the addendum of gear teeth? 

A Distance between outside circle to pitch circle

B Distance between outside circle to root circle

C Distance between pitch circle to root circle

D Distance between outside to bottom point of gear

Correct Answer:- A Distance between outside circle to pitch circle

68 What is the least count of gear tooth vernier caliper?

A 0.01 mm            B 0.01 mm        C 0.2 mm       D 0.02 mm

Correct Answer:- D 0.02 mm

69 Which instrument is used to check the chordal addendum of a gear teeth?

A Screw gauge 

B Vernier caliper 

C Gear tooth  vernier caliper

D Feelar gauge

Correct Answer:- C Gear tooth  vernier caliper

70 What is the use of sector arm on dividing head?

A Lock the index crank in position

B Eliminate counting holes each time

C Fix the index plate on its correct location

D Avoid the back lash of worm and Worm wheel

Correct Answer:- B Eliminate counting holes each time

71 How many turns of index crank is required for one complete turn of index

head spindle?

A 20         B  28        C 40       D 46

Correct Answer:-  C 40    

72 Where the index crank is fixed on index head?

A Sector arm 

B Index plate 

C Worm shaft 

D Worm gear

Correct Answer:- C Worm shaft 

73 What kind of material is used to produce a template?

A Good quality iron tube 

B Good quality round rod

C Good quality copper sheet

D Good quality steel sheet

Correct Answer:- D Good quality steel sheet

74 What is the use of template? 

A Checking the contour of component

B Checking the length of component

C Checking the weight of component

D Checking the width of component

Correct Answer:- A Checking the contour of component

75 What is the use of radius gauge? 

A For check internal and external radius of job

B For check the gap between two sliding surfaces

C For identify the accuracy of joining parts

D For measure the diameter of jobs

Correct Answer:- A For check internal and external radius of job