UPSC NDA I Exam Paper 16 April 2023 (General Ability Test) (Answer Key)

121. Which one of the following astronomers proved that the Earth and other planets revolve around the Sun ?
(a) Copernicus
(b) Kepler
(c) Galileo
(d) Newton

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122. Sand falls vertically on a conveyor belt at a rate of 0.1 kg/s. In order to keep the belt moving at a uniform speed of 2 m/s, the force required to be applied on the belt is :
(a) 0 N
(b) 0.2 N
(c) 1.0 N
(d) 2.0 N

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123. The power required to lift a mass of 8.0 kg up a vertical distance of 4 m in 2s is (taking acceleration due to gravity as 10 m/s²):
(a) 80 W
(b) 160 W
(c) 320 W
(d) 640 W

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124. One block of 2.0 kg mass is placed on top of another block of 3.0 kg mass. The coefficient of static friction between the two blocks is 0.2. The bottom block is pulled with a horizontal force F such that both the blocks move together without slipping. Taking acceleration due to gravity as 10 m/s2, the maximum value of the frictional force is:
(a) 50 N
(b) 30 N
(c) 4 N
(d) 10 N

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125. A mass is attached to a spring that hangs vertically. The extension produced in the spring is 6 cm on Earth. The acceleration due to gravity on the surface of the Moon is one-sixth of its value on the surface of the Earth. The extension of the spring on the Moon would be:
(a) 6 cm
(b) 1 cm
(c) 0 cm.
(d) 36 cm

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126. Which one of the following is an example of Second Class Lever?
(a) A pair of scissors
(b) A bottle opener
(c) A cricket bat
(d) A bow and arrow

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127. In an electric circuit, a wire of resistance 10 is used. If this wire is stretched to a length double of its original value, the current in the circuit would become :
(a) half of its original value.
(b) double of its original value..
(c) one-fourth of its original value.
(d) four times of its original value.

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128. What is the total resistance in the following circuit element?

(a) R/2
(b) 3R
(c) 3R/2
(d) 2R/3

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129. Which of the following scheme(s) is/are included under Bharatmala Pariyojana?
1. Develop the road connectivity to border areas
2. Development of coastal roads
3. Improvement in the efficiency of National Corridors.
Select the correct answer using the code given below:
(a) 1 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3

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130. Deendayal Port was earlier known as:
(a) Paradip Port
(b) Tuticorin Port
(c) Kandla Port
(d) Visakhapatnam Port

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131. The Counter Insurgency and Jungle Warfare School of Indian Army is situated at:
(a) Dehradun
(b) Vairengte
(c) Gulmarg
(d) Mhow

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132. In the soil-forming regime, which one of the following occurs in a region where evapotranspiration exceeds precipitation significantly?
(a) Calcification
(b) Laterization
(c) Podsolization
(d) Gleization

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133. Which one of the following is found in the innermost part of the Earth?
(a) Conrad discontinuity
(b) Moho discontinuity
(c) Lehmann discontinuity
(d) Guttenberg discontinuity

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134. Which of the following tree species is/are found on Himalayas ?
1. Oak
2. Rhododendron
3. Rosewood
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) 1 and 2

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135. Which one of the following is the lowermost/innermost intrusive igneous rock?
(a) Laccolith
(b) Batholith
(c) Lopolith
(d) Phacolith

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136. If it is 12 noon in New Delhi, what will be the time in London, UK?
(a) 6:30 A.M.
(b) 6:30 P.M.
(c) 5:30 A.M.
(d) 5:30 P.M.

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137. Which of the following positions of Sun, Earth and Moon is/are suitable for Spring Tide ?
1. SYZYGY Conjunction
2. SYZYGY Opposition
3. Quadrature
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) 1 and 2
(d) 1 and 3

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138. Which Renaissance artist painted ‘The Last Supper’?
(a) Michelangelo
(b) Donatello
(c) Botticelli
(d) Leonardo da Vinci

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139. Which one of the following European explorer conquered Mexico?
(a) Vasco da Gama
(b) Bartholomew Diaz
(c) Magellan
(d) Hernán Cortés

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140. Near which one of the following cities in India have large statues of Kushana rulers been discovered?
(a) Karnal
(b) Ropar
(c) Hisar
(d) Mathura

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