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Q.1. Which of the following has the highest pH?
(a) Gastric juice
(b) Bile in the gall bladder
(c) Pancreatic juice
(d) Saliva
Correct Answer: C
Explanation- The pancreas and liver are alkaline glands because they produce pancreatic juice and bile, which are normally alkaline solutions. The pancreatic juice has a pH of 8.0- 8.3, and the pH of liver bile is 7.8 Hence Option C is correct.
Q.2. Which of the following celestial bodies contains abundant quantities of Helium – 3, a potential source of energy?
(a) Earth
(b) Saturn
(c) Venus
(d) Moon
Correct Answer: B
Explanation- The Moon has been bombarded with large quantities of Helium-3 by the solar wind. Hence Option B is correct.
Q.3. From the economic point of view most important forests are___________?
(a) Tidal
(b) Evergreen
(c) Tropical Deciduous
(d) Mountainous
Correct Answer: C
Explanation- Economically the most important forests of India are Tropical deciduous forests. As per the economic resource pooling of India, the tropical Deciduous forests are the best ones in terms of export, import and revenue. Hence Option C is correct.
Q.4. Which of the following ruler of the Chalukyas of Vatapi also maintained diplomatic relations with Iran?
(a) Jayasimha
(b) Pulakesin II
(c) Vikramaditya
(d) Vikramaditya II
Correct Answer: B
Explanation- According to the 9th-century Persian historian Al-Tabari, Pulakeshin (“Pharmis”) maintained diplomatic relations with the Sasanian ruler Khosrow II of present-day Iran. Hence Option B is correct.
Q.5. Which of the following is not correctly matched?
(a) Pindari War – Lord Hastings
(b) First Afghan War – Lord Auckland
(c) Annexation of Sindh – Lord Ellenborough
(d) Second Sikh War – Lord Hardinge
Correct Answer: D
Explanation- Lord Dalhousie
The Second Anglo-Sikh War was a military conflict between the Sikh Empire and the British East India Company that that took place in 1848 and 1849. Early in 1848, Sir Henry Lawrence, who was ill, departed on leave to England. Although it was assumed that his younger brother John Lawrence would be appointed in his place, Lord Dalhousie, who had replaced Lord Hardinge as Governor-General, appointed Sir Frederick Currie instead. Hence Option D is correct.
Q.6. Match List – I with List-II and select the correct answer using the codes given below:
List – I List – II
(A) 98.4° F (1) Atmospheric pressure
(B) 76 cm of Hg (2) Human blood pressure
(C) 80/120, (3) Body temperature
(D) 32 lb (4) Tyre pressure of the car.
Code:
. A B C D
(a) 3 1 2 4
(b) 2 1 3 4
(c) 1 3 4 2
(d) 4 2 3 1
Correct Answer: A
Explanation-
(A) 98.4° F (3) Body temperature
(B) 76 cm of Hg (1) Atmospheric pressure
(C) 80/120, (2) Human blood pressure
(D) 32 lb (4) Tyre pressure of the car.
Hence Option A is correct.
Q.7. Who has given an excellent description of the surgical instruments in ancient India?
(a) Chaska
(b) Aryabhatta
(c) Sushruta
(d) Vamanacharya
Correct Answer: C
Explanation- Susruta, the great sage surgeon, philosopher and teacher of ancient India, practiced around 600 bc. Sushruta or Suśruta was an ancient Indian physician and surgeon known today as the “Father of Surgery” and “Father of Plastic Surgery” for inventing and developing surgical procedures Hence Option C is correct.
Q.8. Which inscription of King Harshvardhan has his own signature on it?
(a) Madhuban inscription
(b) Banskheda inscription
(c) Nalanda inscription
(d) Sonipat inscription
Correct Answer: B
Explanation- The Banskhera inscription describes Harsha as the worshipper of Shiva. The sign of Harsha on the Banskhera inscription represents that Harsha was a skilful calligraphist. This inscription is from Uttar Pradesh and is written in Sanskrit. This inscription is written in the prose of Harsha. The Banskhera inscription verifies that He was an able ruler and Artman. Hence Option B is correct.
Q.9. The working of the LED system is based on which principle?
(a) Fluorescence
(b) Phosphorescence
(c) Electro-luminescence
(d) None of the above
Correct Answer: C
Explanation-Electroluminescence (EL) is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field. Hence Option C is correct.
Q.10. Consider the following statements and select the correct answer from the codes given below:
(1) In a solar cooker concave mirror is used.
(2) In loudspeakers electrical energy is converted into sound energy.
(3) In motor electrical energy is converted into mechanical energy.
Codes:
(a) only 1 and 2
(b) only 2 and 3
(c) only 3 and 1
(d) all 1, 2 and 3
Correct Answer: D
Explanation- A concave mirror is used in solar cookers because it converges light rays coming from infinity to a point so that more heat is produced at the point sufficient to cook the food.
The part of the speaker that converts electrical into mechanical energy is frequently called the motor, or voice coil. The motor vibrates a diaphragm that in turn vibrates the air in immediate contact with it, producing a sound wave corresponding to the pattern of the original speech or music signal.
An electric motor converts electrical energy into mechanical energy. A generator converts mechanical energy into electrical energy. A hydroelectric powerplant converts the mechanical energy of water in a storage dam into electrical energy.
All the statements given above is correct. Hence Option D is correct.