Manufacturing Engineering

Question 1

1A welder must wear a helmet with a dark filter to protect against

Easy

A. intense light and UV radiation B. noise C. cold D. dust

Question 2

2Rivets are used to make

Easy

A. permanent mechanical joints B. temporary joints C. glue joints D. electrical connections

Question 3

3TIG welding uses

Hard

A. a non-consumable tungsten electrode with inert gas B. oxygen and acetylene only C. no electricity D. a consumable rod with flux

Question 4

4Die casting uses

Easy

A. wooden moulds B. reusable metal moulds C. sand moulds only D. paper moulds

Question 5

5Forcing molten metal into a steel mould under pressure is

Easy

A. extrusion B. forging C. die casting D. sand casting

Question 6

6In MIG welding, the shielding gas protects the weld from

Medium

A. water B. sunlight C. the oxygen and nitrogen in the air D. noise

Question 7

7Brazing joins metals using a filler that melts

Medium

A. above 450 °C but below the base metals B. below 100 °C C. above the base metals D. at room temperature

Question 8

8Joining metals with a filler metal that melts above 450 °C but below the parent metals' melting point is

Medium

A. riveting B. soft soldering C. brazing D. welding

Question 9

9A pattern in sand casting is

Easy

A. the final product B. a model used to make the mould cavity C. a safety device D. the molten metal

Question 10

10Porosity in castings is caused mainly by

Hard

A. trapped gases B. cold moulds only C. too much paint D. excess machining