UPPSC Prelims
UPPSC Prelims 2019: Previous-Year Questions
20 questions from this paper, sorted by subject, with their options. Each one opens to its answer and explanation.
Biology 10 questions
Which of the following statements about enzymes is/are correct?
1. They are biocatalysts.
2. They perform their action on the site where they are produced. Select the correct answer from the codes given below:- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Which of the following substances is NOT a protein?
- ACotton
- BHair
- CSpider silk
- DHoof
Which of the following pairs is NOT correctly matched? (Vitamin) (Rich Source) (a) Vitamin B6 Rice bran (b) Vitamin B2 Cod-liver oil (c) Vitamin E Wheat germ oil (d) Vitamin K Alfalfa
- A(a)
- B(b)
- C(c)
- D(d)
Given below are two statements, one labelled as Assertion (A): Most of the vitamins are not synthesised in the human body. Reason (R): Human organs synthesise only essential micronutrients. Select the correct answer from the codes given below:
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
- C(A) is true, but (R) is false
- D(A) is false, but (R) is true
Mother's milk provides almost complete diet to the new-born, but it lacks the following
- AIron
- BCalcium
- CMagnesium
- DPotassium
Which of the following organisms has white blood?
- ALizard
- BCockroach
- CHouse bug
- DMosquito
Which of the following glands in human body acts both as an endocrine gland as well as an exocrine gland?
- AAdrenal gland
- BLacrimal gland
- CPancreas
- DThyroid
Use of polished rice in human diet causes the following disease
- ABeriberi
- BGoitre
- CNight blindness
- DColour blindness
Given below are two statements, one is labeled as Assertion (A) and the other as Reason (R) Assertion (A): Maximum number of the species of butterflies are found in tropical countries. Reason (R): Butterflies can not tolerate low temperatures. Select the correct answer using the codes given below:
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
- C(A) is true but (R) is false
- D(A) is false but (R) is true
Tulsi plant has medicinal values due to the presence of which of the following?
- AInorganic Acid
- BOrganic Acid
- CPhenols and Flavonoids
- DNone of the above
Chemistry 7 questions
A sample of any of the following substances disappears after sometime when exposed to air like camphor, naphthalene or dry ice. This phenomenon is called
- ASublimation
- BEvaporation
- CDiffusion
- DRadiation
Match the following:
A. Kevlar 1. Explosive B. Taxol 2. Synthetic fibre C. Zinc Phosphide 3. Anticancer drug D. Nitrocellulose 4. Rodenticide - AA-2, B-4, C-3, D-1
- BA-2, B-3, C-4, D-1
- CA-4, B-3, C-1, D-2
- DA-3, B-1, C-2, D-4
Arrange the following substances in chronological order of their first synthesis in lab:
1. Black gold 2. Fullerene 3. Graphene 4. Kevlar
Select correct answer from the codes given below:- A1 2 3 4
- B4 2 3 1
- C2 4 3 1
- D4 1 2 3
Which of the following pairs is NOT correctly matched?
- AOxytocin, Hormone
- BAspartame, Synthetic sweetener
- CNeoprene, Specialized rubber
- DRayon, Modified starch
Which one of the following is NOT correctly matched?
- ASilver bromide - artificial photosynthesis
- BSilver iodide - artificial rain
- CLithium bicarbonate - treatment of rheumatism
- DMilk of magnesia - antacid
Which of the following is NOT correctly matched?
- ADesalination, Sea water
- BReverse osmosis, Potable water
- CDenaturation, Proteins
- DPasteurisation, Tea
Which of the following is an example of herbicide?
- ASodium chlorate
- BPotassium permanganate
- CBleaching powder
- DNone of the above
Physics 3 questions
Which one of the following is associated with 'Albedo'?
- ATransmitting power
- BAbsorbing power
- CEmissive power
- DReflecting power
A liquid remains hot or cold for a long time in thermos flask because there is no loss or gain of heat by
- AConduction
- BConvection and radiation
- CBoth (a) and (b)
- DNone of the above
The phenomenon used in optical fibre for transmission of light energy is
- ATotal internal reflection
- BDiffraction
- CScattering
- DRefraction