Previous year MCQs

General science UPPSC 1997 GS-I
Question

The important metal used with iron to produce stainless steel is:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: chromium

Detailed Solution:

The correct answer is “chromium”.
Chromium is the essential metal added to iron to produce stainless steel. It's the chromium content that provides stainless steel with its corrosion resistance.  

Similar Questions:

The compilation of which among the following is based upon the Rigveda:
  1. A) Yajurveda
  2. B) Samaveda
  3. C) Atharvaveda
  4. D) None of the above
As per the 1991 2011 census, the maximum concentration of population in class I towns is found in:
  1. A) Andhra Pradesh
  2. B) Gujarat
  3. C) Maharashtra
  4. D) West Bengal
Which of the following particles has zero charge?
  1. A) Positron
  2. B) Neutrino
  3. C) Electron
  4. D) a-particle
Which one of the following is not correctly matched?
  1. A) Anemometer - Wind speed
  2. B) Ammeter - Electric current
  3. C) Tachometer - Pressure difference
  4. D) Pyrometer- High temperature
The energy of the sun is produced by
  1. A) Nuclear fission
  2. B) Ionisation
  3. C) Nuclear fusion
  4. D) Oxidation
Who among the trio-Lal, Bal and Pal became President of the Indian National Congress?
  1. A) Lala Lajpat Rai
  2. B) Bal Gangadhar Tilak
  3. C) Bipin Chandra Pal
  4. D) None of them
The disease-causing microorganism among these is:
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  2. B) Pathogens
  3. C) Bacteria
  4. D) Protozoa
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  2. B) Butane
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  4. D) 120/80
Given below are two statements:

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Reason [R]: Starch degrading enzyme, diastase, is found in the human body.

Choose the answer from the code given below:
Codes:
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  3. C) 179 litres
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Consider the following statements about haemoglobin:

1) It carries oxygen in the blood.
2) It is iron containing compound.
3) It provides immunity against certain disease.
4) It imparts red colour to the blood.

The correct statements out of these are:
  1. A) 1,2 and 3
  2. B) 2, 3 and 4
  3. C) 1, 3 and 4
  4. D) 1, 2 and 4