The base of a brass bracket has to be rough ground to remove the unevenness. The 4 wheels available in the store. The appropriate wheel is

1.  A 30 K 12 V

2.  C 90 M 4B

3.  C 30 Q 12 V

4.  C 50 G 8V

View Answer  
4
Correct Answer :

A 30 K 12 V


Explanation :
No Explanation available for this question

A drilling machine has to be designed with 8 spindle speeds ranging approximately between 120 to 1200 rpm. The 5th spindle speed is

1.  445

2.  480

3.  620

4.  865

View Answer  
4
Correct Answer :

445


Explanation :
No Explanation available for this question

Find the speed range ratio for the drilling machine spindle if the minimum and maximum diameters of the drills used are 5 mm and 25mm respectively and if the machinability indices for the work materials are 120 (brass) and 40 (alloy steel)

1.  3/5

2.  5/3

3.  5

4.  15

View Answer  
4
Correct Answer :

15


Explanation :
No Explanation available for this question

If the index crank of a dividing head is turned through one complete revolution and 10 holes in a 30holes circle plate, the work piece turns through (in degrees)

1.  6

2.  12

3.  240

4.  480

View Answer  
4
Correct Answer :

12


Explanation :
No Explanation available for this question

The number of defective produced by a six sigma process (in Parts per million) is

1.  5.2

2.  4.2

3.  3.2

4.  2.2

View Answer  
4
Correct Answer :

3.2


Explanation :
No Explanation available for this question

Match the following materials with their most appropriate applications: Materials 1. Low carbon steel 2. Stainless steel 3. Gray cost iron 4. Titanium alloys Applications P. Machine tool base Q. Aircraft parts R. Kitchen utensils S. Car body panels

1.  1-P, 2-R, 3-Q, 4-S

2.  1-P, 2-R, 3-S, 4-Q

3.  1-S, 2-Q, 3-P, 4-R

4.  1-S, 2-R, 3-P, 4-Q

View Answer  
4
Correct Answer :

1-S, 2-R, 3-P, 4-Q


Explanation :
No Explanation available for this question

He shear angle and shear forces, respectively, are

1.  71.5650, 150.12N

2.  9.2180, 861.64N

3.  18.4350, 751.04N

4.  23.1570, 686.66N

View Answer  
4
Correct Answer :

18.4350, 751.04N


Explanation :
No Explanation available for this question

The ultimate shear stress (in N/mm2) of the work material is

1.  235

2.  139

3.  564

4.   380

View Answer  
4
Correct Answer :

380


Explanation :
No Explanation available for this question

In a single pass drilling operation, a through hole of 15mm diameter is to be drilled in a steel plate speed is 500rpm, feed is 0.2mm/rev and drill point angle is 1180. Assuming 2 mm clearance at approach and exit, the total drill time (in seconds) is

1.  35.1

2.  32.4

3.  31.2

4.  30.1

View Answer  
4
Correct Answer :

35.1


Explanation :
No Explanation available for this question

A 20 cm-dia, 1.2 m-long cylinder loses heat from its peripheral surface by convection. Surface temperature of the cylinder is constant at 1000 C and the fluid temperature is constant at 200 C. The average convection heat transfer coefficient over the surface of the cylinder is 25 W/m2.K. The heat transfer rate is

1.  120 πW

2.  240 πW

3.  320 πW

4.  480 πW

View Answer  
4
Correct Answer :

480 πW


Explanation :
No Explanation available for this question
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