(Papers) RRB Group D : Exam Paper & Answer Key Date: 25 Oct 2018 Shift-1 (General science)
(Papers) RRB Group D : Exam Paper & Answer Key
b Date: 25 Oct 2018 Shift-1 (General science)
Q1. Which of the following statements is/are true?
A. Out of 124 elements, 22 are non-metals, and other are metals.
B. Every ore is a mineral but every mineral is not an ore
a. Only B is true
b. A and B are both true
c. Only A is true
d. A and B are both false
Q2. In negative acceleration, the velocity of a body ..............
a. remains constant
b. is zero
c. decreases
d. increases
Q3. The work done in moving a charge from one point to the other is 20 J. If the potential difference between the points is to 10 V, the charge is:
a. 4.0 C
b. 2.0 C
c. 0.5 C
d. 1.0 C
Q4. A boy, of mass 50 kg, runs up a staircase of 45 steps in 10 s. If the height of each step is 14 cm, find his power. Take g= $$10ms^{-2}$$
a. 315 ms
b. 315 W
c. 337.5W
d. 310.55 J
Q5. What is the ability of a metal to be drawn into thin wires called?
a. Ductility
b. Sonorous
c. Malleability
d. Intractability
Q6. Which of the following statements is/are true/false about speed of sound in different media at 25°C?
Statement :
A. In water (sea), the speed of sound is 1531 m/s.
B. In water (distilled), the speed of sound is 1498 m/s.
a. Only A is true
b. Neither A nor B is true
c. Both A and B are true
d. Only B is true
Q7. The sex of the children will be determined by what they inherit from the:
a. nature
b. father
c. mother
d. mother and father
Q8. How much work is done in moving a charge of 5 C across two points having a potential difference of 16 V?
a. 65 J
b. 45 J
c. 40 J
d. 80 J
Q9. Which of the following is not a Connective Tissue?
a. Cartilage tissue
b. Muscular Tissue
c. Adipose Tissue
d. Ligament
Q10. Which of the following is NOT a plant hormone?
a. Auxin
b. Abscisic Acid
c. Cytokinin
d. Adrenaline
Q11. Which element in the periodic table forms maximum number of compounds?
a. H
b. O
c. S
d. C
Q12. In liquids, a small fraction of particles at the surface have:
a. more potential energy
b. more kinetic energy
c. less potential energy
d. less kinetic energy
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Q13. In the figure given below, if an object is moved from A to B (consider the height of AB=h), in which situation the work done on the object is mgt?
a. In path 1
b. Both path 1 and 2
c. In path 2
d. Neither path 1 nor path 2
Q14. Fats and oils become rancid because of:
a. transpiration
b. reduction
c. oxidation
d. corrosion
Q15. The oesophagus and lining of the mouth are also covered with .........
a. Squamous epithelium
b. Ciliated epithelium
c. Columnar epithelium
d. Glandular epithelium
Q16. Who demonstrated that objects of different masses would reach the ground together when dropped from the same height?
a. Isaac Newton
b. Archimedes
c. Robert Boyle
d. Galileo Galilei
Q17. Which of the following produces Testosterone in man?
a. Prostate gland
b. Scrotum
c. Testes
d. Vas deferens
Q18. Which of the following statements is/are true?
A. A balanced chemical equation has an equal number of protons of different
elements in the reactants and products.
B. An unbalanced chemical equation has an unequal number of protons of one or
more elements in the reactants and products.
a. A and B are both false
b. Only A is true
c. Only B is true
d. A and B are both true
Q19. An electric bulb of 100 W is used for 9 hours per day. What will be the 'units' of energy consumed in 1 day by the bulb?
a. 0.9 units
b. 0.6 units
c. 1.2 units
d. 1.9 units
Q20. Modern periodic table is based on ..........
a. atomic number
b. number of positrons
c. atomic mass number
d. number of neutrons
Q21. The force of attraction between two objects is called the
a. centripetal force
b. electromagnetic force
c. gravitational force
d. centrifugal force
Q22. Mendeleev could not assign a correct position to which of the following elements in his table?
a. Lithium
b. Potassium
c. Hydrogen
d. Helium
Q23. In an electric circuit, Rheostat is often used to change the ......... in the circuit.
a. temperature
b. resistance
c. electric current
d. potential difference
Q24. Which tissue is responsible for transport of materials away from the root?
a. Ground tissue
b. Cambium
c. Phloem
d. Xylem
Q25. The time period of a vibrating body is 0.04s, then the frequency of the wave is......
a. 25HZ
b. 20Hz
c. 250Hz
d. 200Hz