Window panes of aeroplanes are normally made of_____________________?
Correct answer: A. Perspex (PMMA)
- A. Perspex (PMMA)
- B. Teflon (PTFE)
- C. Bakelite (phenol formaldehyde)
- D. Polystyrene
Explanation
Perspex is polymethyl methacrylate (PMMA), a transparent, lightweight and impact-resistant material suitable for aircraft window panes. PTFE, Bakelite and polystyrene do not provide this combination of optical and mechanical properties.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
Silicon percentage in silicon steel used for electrical equipments is about______________?
Galvanic corrosion cannot be prevented by___________________?
Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water) ?
Fibre reinforced plastic (FRP) are___________________?
Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
Gratings is associated with the measurement of____________________?