Previous year MCQs

General science UPPSC 2007 GS-I
Question

The temperature for keep food fresh in the refrigerator is:

Answer & Solution

Answer: (Detailed Solution Below)

Option A: 4°C

Detailed Solution:

The correct answer is “4°C”.
Keeping the refrigerator temperature at or below 4°C (40°F) helps to slow the growth of bacteria and keep food fresh.

Similar Questions:

In recent years, Indian Rupee has been strong against which of the following currency?
  1. A) Yen
  2. B) Euro
  3. C) Dollar
  4. D) Pound sterling
Who was the first woman president of the All India Congress?
  1. A) Mrs Annie Besant
  2. B) Mrs Sarojini Naidu
  3. C) Mrs Nalini Sengupta
  4. D) Aruna Asaf Ali
Which of the following hormones is secreted by the Beta cell of Islet of Langerhans of Pancreas?
  1. A) Glucagan
  2. B) Adrenalin
  3. C) Insulin
  4. D) Aldosterone
Which of the following is associated with potassium deficiency?
  1. A) Kidney damage and paralysis of muscles
  2. B) Low blood pressure
  3. C) Hip-joint replacement
  4. D) Blood transfusion
Consider the following statement about haemoglobin and select the correct answer from the code given below:

1. It contains iron.
2. It imparts red colour to the blood.
3. It provides immunity against certain diseases.
4. It is a career of oxygen in the blood.

Code:
  1. A) 1, 2 and 3
  2. B) 2, 3 and 4
  3. C) 1, 3 and 4
  4. D) 1, 2 and 4
Ozone protects biosphere from:
  1. A) Infra-red rays
  2. B) Ultraviolet rays
  3. C) X-rays
  4. D) Gama rays
Which one of the following is NOT common between Malaria and Dengue?
  1. A) Fever
  2. B) Mosquito bite
  3. C) Human species
  4. D) Mosquito species
"Radioactive dating" is a technique which can be used to measure:
  1. A) the age of rocks
  2. B) composition of rocks
  3. C) colour of rocks
  4. D) weight of rocks
Which of the following is/are used as bio-fertilisers? Select the correct answer from the codes given below:

1. Azolla
2. Blue Green Algae
3. Alfalfa
4. Nitrolim

Codes:
  1. A) 1 and 2
  2. B) 1, 2 and 4
  3. C) 2, 3 and 4
  4. D) 1, 2 and 3
When the TV is switched ON then:
  1. A) Both audio and visuals start simultaneously
  2. B) The audio is heard immediately but the video is visible later because the video needs some practice time
  3. C) The visual starts immediately but audio is heard later because the sound travels less than the speed of light
  4. D) It depends on the brand of TV
"Neno plug" refers to:
  1. A) a small bullet
  2. B) a small hearing aid
  3. C) a small rocket launcher
  4. D) None of the above
Which of the following tree is suitable to prevent dust pollution?
  1. A) Sita Ashok
  2. B) Mahua
  3. C) Poplar
  4. D) Neem