Multiple Choice Questions (MCQ) on Surface Finishing Operations

Multiple Choice Questions (MCQ) on Surface Finishing Operations

1-The precision surface finishing operations, employed for producing extremely high surface finish, are called

(A) Macro finishing operations

(B) Micro finishing operations

(C) Precise finishing operations

(D) All of the above

 

2-Lapping is used for

(A) Heat treated parts

(B) Non heat treated parts

(C) Both (A) and (B)

(D) None of the above

 

3-Lapping is not suitable for

(A) Tungsten

(B) Lead

(C) Brass

(D) Copper

 

4-The following is preferred for lapping soft ferrous and non-ferrous metals.

(A) Silicon carbide

(B) Natural corundum

(C) Aluminium oxide

(D) All of the above

 

5-In lapping, the lubricant used to hold or retain the abrasive grains during operation is known as

(A) Vehicle

(B) Holder

(C) Absorber

(D) Retainer

 

6-The recommended range of lapping allowance to be left on the surface, for general lapping work, is

(A) 0.0025 mm to 0.0050 mm

(B) 0.0050 mm to 0.0075 mm

(C) 0.0075 mm to 0.0125 mm

(D) 0.0125 mm to 0.0250 mm

 

7-The following are the lapping operations

(A) Equalising lapping

(B) Form lapping

(C) Both (A) and (B)

(D) None of the above

 

8-Machine lapping is performed on

(A) Roller bearings

(B) Crankshafts

(C) Pistons

(D) All of the above

 

9-Honing is used for finishing

(A) External cylindrical surface

(B) Internal cylindrical surface

(C) Both (A) and (B)

(D) None of the above

 

10-The usual amount of stock left for removal by honing is from

(A) 0.1 mm to 0.25 mm

(B) 0.75 mm to 0.90 mm

(C) 0.90 mm to 1.05 mm

(D) 1.05 mm to 1.25 mm

 

ANSWERS:

1-(B), 2-(C), 3-(A), 4-(C), 5-(A), 6-(C), 7-(C), 8-(D), 9-(B), 10-(A)