General Engineering 2005 Objective Paper


Q- The process of depositing zinc on steel surfaces by diffusion coating is known as :

A. Sherardising

B. Chromising

C. Calorising

D. Galvanising

Answer-A


Q- Sherardising , Chromising and Calorising fall under which of the processes of metal coating application :

A. Thermal spraying

B. Electroplating

C. Diffusion coating

D. Metal cladding

Answer-C


Q- Bronze is an alloy typically consisting of :-

A. Copper , lead & tin

B. Copper , Zinc & lead

C. Copper , Zinc & Tin

D. Copper , Tin & Lead

Answer-D


Q- Which of the foll. is a true statement

A) Aluminium wl b subject to preferential corrosion when in electrical continuity with stainless steel in presence of an electrolyte.

b) Stainless steel wl b subject to preferential corrosion when in electrical continuity with mild steel in presence of an electrolyte.

C) Copper wl b subject to preferential corrosion when in electrical continuity with stainlesssteel in presence of an electrolyte

d) Aluminium wl b subject to preferential corrosion when in electrical continuity with zinc in presence of an electrolyte.

Answer-A


Q- The common term used for failure of metal and alloys in a corrosive environment , when subject to high stresses is known as :

A. Fatigue failure

B. Corrosion fatigue

C. Stress corrosion cracking

D. Fretting corrosion

Answer-C


Q- Which of the following layers of a thin shell bearing gives it its fatigue strength?

A. The overlay

B. The interlay

C. The backing

D. The barrier layer

Answer-A


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