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1. Which of the following origins 5. Which of the following characteristics
distinguishes natural polymers from MUST sustainable inorganic and organic
other materials? materials exhibit?

(A) Plants, animals or minerals only I. Renewability
(B) Organic materials only II. Durability
(C) Plants and animals only III. Ready availability
(D) Organic and some inorganic
(A) I and II only
materials only (B) I and III only
(C) II and III only
2. The utilization of natural organic fibres (D) I, II and III
can be justified as more sustainable
engineering materials than traditional 6. Which of the following BEST describes
synthetic organic materials because the term ‘renewable energy’?

(A) natural polymers are naturally (A) Low cost energy supply
growing (B) Low pollution
(C) Replenishable supply
(B) natural polymers biodegrade (D) Unlimited supply
after their service life
7. All organic and inorganic materials are
(C) natural polymers can withstand made up of
the natural environment
(A) electrons and protons only
(D) natural polymers do not pollute (B) elements only
the natural environment (C) compounds and mixtures only
(D) molecules only
3. In which of the following states are both
organic and inorganic engineering 8. Why are natural bio-polymers used in
materials utilized? engineering design less damaging to the
environment?
(A) Solid, liquid and in composite
form only (A) They are lower in toxicity than
man-made materials.
(B) Solid, gas and liquid form only
(C) Solid form only (B) They do not require processing.
(D) Composite form only (C) They are less reactive.
(D) They do not degrade.
4. Which of the following statements
BEST describes embodied energy? GO ON TO THE NEXT PAGE

(A) Energy used to acquire
materials from extraction to
disposal

(B) Energy used to acquire
sustainable material from
extraction to disposal

(C) Energy used to acquire
inorganic materials from
extraction to disposal

(D) Energy used to acquire organic
materials from extraction to
disposal

02265010/SPEC 2015