Previous year MCQs

General science UPPSC 2003 GS-I
Question

Consider the following statements and select the correct answer from the code given below:

1. Brass is a compound of copper and zinc.
2. Magnetite is the most important ore of aluminium.
3. Amalgam is that substance which basically contains mercury.
4. Potassium nitrate is one of the essential chemicals used in photography.

Code:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: 1 and 3

Detailed Solution:

The correct answer is “1 and 3”.
1) Brass (पीतल) is an alloy of copper (ताँबा) and zinc. Bronze (कांस्य) is the mixture of the metals tin and copper.

2) Bauxite ore is the main source of aluminum and contains the aluminum minerals gibbsite, boehmite, and diaspore.

3) An amalgam is an alloy of mercury with another metal. It may be a liquid, a soft paste or a solid, depending upon the proportion of mercury.

4) Silver Bromide is used in developing a photo from a photographic film.

Similar Questions:

Blank capsules used in dispensing are made of:
  1. A) egg-white
  2. B) gum
  3. C) starch
  4. D) gelatine
Brain diseases are diagnosed by
  1. A) ECG
  2. B) EEG
  3. C) EMG
  4. D) EKG
In which of the following animal's hooves are not found?
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  2. B) Jackal
  3. C) Horse
  4. D) Zebra
Which of the following is a drinking water project of Uttar Pradesh:
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  2. B) Gyanpur Pump Canal Project
  3. C) Gokul Barrage Project
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Which of the following is known as laughing gas?
  1. A) Ammonia
  2. B) Nitrous Oxide
  3. C) Carbon Monoxide
  4. D) Chlorofluro Carbon
Relative humidity of atmosphere is measured by:
  1. A) Hydrometer
  2. B) Hygrometer
  3. C) Potentiometer
  4. D) Lactometer
Which one of the following is associated with 'Albedo'?
  1. A) Transmitting power
  2. B) Absorbing power
  3. C) Emissive power
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Which one of the following is NOT found in space?
  1. A) Pulser
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Given below are two statements:

Assertion [Al: Human body is incapable of digesting cellulose.
Reason [R]: Starch degrading enzyme, diastase, is found in the human body.

Choose the answer from the code given below:
Codes:
  1. A) Both [A] and [R] are true and [R] is the correct explanation of [A]
  2. B) Both [Al and [R] are true but [RI is not the correct explanation of [A]
  3. C) [A] is true but [R] is false
  4. D) Both [A] and [R] are false
Match the columns with Lists-I and II and select the correct answer with the help of code given below:
List-I - List-II

A. High Velocity - 1. Mach
B. Wavelength - 2. Angstrom
C. Pressure - 3. Pascal
D. Energy - 4. Joule
Code:

A B C D
  1. A) 2 1 3 4
  2. B) 1 2 4 3
  3. C) 1 2 3 4
  4. D) 2 1 4 3
Use of polished rice in human diet causes following diseases:
  1. A) Rickets
  2. B) Anemia
  3. C) Goitre
  4. D) Beriberi
Consider the following statements in regard to Uttar Pradesh and select the correct answer from the code given below:

Assertion (A): Among the four economic regions, western Uttar Pradesh has the lowest sex ratio.
Reason (R): It has a high level of economic development and urbanisation.

Code:
  1. A) Both A and R are true and R is the correct explanation of A
  2. B) Both A and R are true but R is not the correct explanation of A
  3. C) A is true but R is false
  4. D) A is false but R is true