UPSC 1995 › Science & Technology › Energy & Environment

3 questions · 1995 · answers as per the UPSC key

Take test Free Study this topic: Science and Technology
All years of Energy & Environment · Full UPSC 1995 paper
UPSC 1995 · Q113 · Science & Technology › Energy & Environment · Save

Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers, etc.?

(a) Nickel and cadmium
(b) Zinc and carbon
(c) Lead peroxide and lead
(d) Iron and cadmium
Show answer
Answer: (a) Nickel and cadmium
UPSC 1995 · Q116 · Science & Technology › Energy & Environment · Save

The difference between a nuclear reactor and an atomic bomb is that

(a) no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction
(b) the chain reaction in nuclear reactor is controlled
(c) the chain reaction in nuclear reactor is not controlled
(d) no chain reaction takes place in atomic bomb while it takes place in nuclear reactor
Show answer
Answer: (b) the chain reaction in nuclear reactor is controlled
UPSC 1995 · Q130 · Science & Technology › Energy & Environment · Save

‘Yellow cake’, an item of smuggling across borders is

(a) a crude form of heroin
(b) a crude form of cocaine
(c) uranium oxide
(d) unrefined gold
Show answer
Answer: (c) uranium oxide