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Workshop Technology

1

The tolerance produced by shell moulding process of casting is


A. + 0.05 mm
B. `pm `0.2 mm
C. + 0.5 mm
D. `pm` 1mm
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2

When the dimension is expressed as `20_(- 0.025)^(+ 0.035)` , then the tolerance is

 
A. 0.035 mm
B. 0.025 mm
C. 0.01 mm
D. 0.06 mm
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3

For gas welding, the pressure desired at the welding torch for oxygen is

A. 7 to 103 kN/m2
B. 70 to 280 kN/m2
C. 280 to 560 kN/m2
D. 560 to 840 kN/m2
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4

The operation of giving impressions of figures, letters or designs on sheet metal parts, is known as embossing.

A. Correct
B. Incorrect
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5

For gas welding, the presure desired at the welding torch for acetylene is

A. 7 to 103 kN/m2
B. 70 to 280 kN/m2
C. 280 to 560 kN/m2
D. 560 to 840 kN/m2
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