BPSC 65th PRE exam paper 15 October 2019 – Answer Key – English


21. The number of ways in which 12 identical pens can be distributed between two students, if each student is to get at least two pens, is
(A) 8
(B) 9
(C) 10
(D) 11
(E) None of the above/More than one of the above

22. If the radii of circles A and B are in the ratio 1 : 5 : 1, then the areas of the circles A and B will be in the ratio
(A) 1.5 : 1
(B) 2 : 1
(C) 2.25 : 1
(D) 2.5 : 1
(E) None of the above/More than one of the above

23. One tap can fill a water tank in 3 hours and another tap can empty it in 4 hours. If the tank is one-third full and both the taps are opened together, then the time taken to fill the tank will be
(A) 8 hours
(B) 9 hours
(C) 10 hours
(D) 11 hours
(E) None of the above/More than one of the above

24. If x3 – y3 = 117/8 and x – y = 3/2 then the value of x2 + xy + y2 will be
(A) 1
(B) 5/8
(C) 39/4
(D) 39/8


(E) None of the above/More than one of the above

25. If (5)x2+2x+7=(125)2x+1 then the value of x is
(A) 5
(B) 4
(C) 3
(D) 2
(E) None of the above/More than one of the above

26. The study of bones is done under the branch of science called
(A) geology
(B) Serology
(C) orology
(D) Osteology
(E) None of the above/More than one of the above

27. Which of the following does not have any enzyme in its cells?
(A) Lichen
(B) Virus
(C) Bacteria
(D) Algae
(E) None of the above/More than one of the above

28. In which organ of the human body are the lymphocytes formed?
(A) Liver
(B) Bone marrow
(C) Spleen
(D) Pancreas
(E) None of the above/More than one of the above

29. Which of the following hormones contains iodine?
(A) Testosterone
(B) Adrenaline
(C) Thyroxine
(D) Insulin
(E) None of the above/More than one of the above

30. AIDS is caused by
(A) helminth
(B) bacteria
(c) fungus
(D) virus
(E) None of the above/More than one of the above

31. The unit of pressure is
(A) kg/cm2
(B) kg/cm
(c) kg/mm
(D) kg/cm3
(E) None of the above/More than one of the above

32. Sound wave in air is
(A) transverse


(B) longitudinal
(C) electromagnetic
(D) polarized
(E) None of the above/More than one of the above

33. The value of 50 °C in Fahrenheit scale is
(A) 104°F
(B) 122 °F
(C) 100 °F
(D) 75 °F
(E) None of the above/More than one of the above

34. The sunlight from the sun to the earth reaches in
(A) 5 minutes
(B) 6 minutes
(C) 8 minutes
(D) 10 minutes
(E) None of the above/More than one of the above

35. Which one of the following is a scalar quantity?
(A) Force
(B) Pressure
(C) Velocity
(D) Acceleration
(E) None of the above/More than one of the above

36. Which one of the following quantities does not have unit?
(A) Stress
(B) Force
(C) Strain
(D) Pressure
(E) None of the above/More than one of the above =

37. What is measured in hertz?
(A) Frequency
(B) Energy
(C) Heat
(D) Quality
(E) None of the above/More than one of the above

38. Body temperature is regulated by
(A) medulla
(B) thalamus
(C) hypothalamus
(D) cerebellum
(E) None of the above/More than one of the above

39. The device to measure electric current is
(A) voltineter


(B) ammeter
(C) voltameter
(D) potentiometer
(E) None of the above/More than one of the above

40. Which of the following is also known as laughing gas?
(A) Nitric oxide
(B) Nitrous oxide
(C) Nitrogen pentoxide
(D) Nitrogen
(E) None of the above/More than one of the above

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