REPAIRING TECHNIQUE 1 ALUMINUM FABRICATION - Practice Mode

1) What is the purpose of vertical rib with round shape on its top in bottom frame of window?

Seal the glass partition Hold rubber packing Insert metal screws Provide track for sliding window

Correct Answer: Provide track for sliding window

2) Which screw thread of 55 Degree included angle and depth of thread is 0.6403 p is used in general engineering fasteners?

BA thread BIS thread BSP thread BSW thread

Correct Answer: BSW thread

3) Which screw thread of 47? Degree included angle is used in electrical and instrument screws?

BA BSW BSP BSF

Correct Answer: BA

4) Which is the material used in construction of navy boats?

Wood Steel Aluminium Fibreglass

Correct Answer: Fibreglass

5) What is the purpose of glass lining of valves, pipes and pumps?

Abrasion Wear and tear Heat radiation Corrosion prevention

Correct Answer: Corrosion prevention

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