NTTA questions - Body & Corossion

Sample body and corrosion questions


The corrosion process of steel car bodies is known as?
A = oxidation
B = carbonization
C = ionization
D = hydration

Steel car bodies can be protected from corrosion by?
A = galvanizing
B = tempering
C = normalizing
D = annealing

Which metal is most resistant to rusting?
A = iron
B = high carbon steel
C = low carbon steel
D = stainless steel

The corrosion of mild steel is increased by the addition of?
A = alcohol
B = oil
C = nitrogen
D = salt

The evidence of corrosion on aluminum and its alloys is seen on the metal as?
A = a red stain
B = a white powder
C = a brown stain
D = a brown powder

Which one of the following is true about bare untreated mild steel?
A = surface rust occurs quicker on thin sheet than it does on thick sheet.
B = the inside of a hollow box section can corrode
C = surface rust occurs quicker on thick sheet than it does on thin sheet
D = rusting and corrosion are different processes

A vehicle which has a monoscope construction?
A = has a chassis and removable body
B = does not have a separate chassis
C = is assembled without welding
D = has a roll-over cage.

Which implement would be the most suitable for detecting disguised body filler on a steel chassis?
A = a large steel probe
B = a small steel probe
C = an ultra-violet lamp
D = a bar magnet

Which one of these best describes a space frame?
A = A large bodied vehicle
B = A type of chassis construction
C = A suspension sub-frame member
D = A steering system sub-frame member

Compared with electric spot welding. Which one of the following methods of joining sheet steel would have a similar strength and similar resistance to fatigue fracturing?
A = seam welding.
B = pot-riveting
C = stitch (tack) welding
D = bronze welding (brazing)