21. The length of the longest pole that can be placed in a room 12 meters long, 9 meters wide and 8 meters high is
(A) 864 meters
(B) 10 meters
(C) 17 meters
(D) 43 meters
(E) None of the above
Show Answer/Hide
22. A train of length 150 meters, moving towards north direction at a speed of 144 km/hr, can cross a 250 meters long bridge in
(A) 20 seconds
(B) 100 seconds
(C) 45 seconds
(D) 10 seconds
(E) 28 seconds
Show Answer/Hide
23. How many prime numbers are there between 1 and 50?
(A) 17
(B) 15
(C) 14
(D) 16
(E) None of the above
Show Answer/Hide
24. If x = , then 9x2 – 3x – 11 is equal to
(A) -13
(B) 13
(C) -5
(D) -17
(E) 17
Show Answer/Hide
25. In an examination, every candidate took Hindi or History or both. 66% took Hindi and 59% took History. The total number of candidates was 3000. How many candidates took both Hindi and History?
(A) 500
(B) 750
(C) 542
(D) 738
(E) 830
Show Answer/Hide
26. If , then value of x is
(A) 35/73
(B) 525/933
(C) 205/403
(D) 135/233
(E) None of the above
Show Answer/Hide
27. If x + (1/y) = 1 and y + (1/z) = 1, then the value of z + (1/x) is
(A) x-y
(B) 1
(C) Not known/Not countable
(D) 2
(E) None of the above
Show Answer/Hide
28. The average age of 4 sisters is 7 years. If we add the age of mother, then the average increases by 6 years. Find the age of the mother.
(A) 46 years
(B) 39 years
(C) 37 years
(D) 47 years
(E) 57 years
Show Answer/Hide
29. If 3x+8 = 272x+1 , then the value of x is
(A) 90
(B) 1
(C) -1
(D) 10
(E) – 100
Show Answer/Hide
30. If , then the S is
(A)
(B) 56
(C) 111
(D) 115
(E)
Show Answer/Hide
31. Which of the following has pH value 7?
(A) Pure water
(B) Neutral solution
(C) Basic solution
(D) Acidic solution
(E) None of the above/More than one of the above
Show Answer/Hide
32. Which of the following elements does not contain neutrons?
(A) Oxygen
(B) Nitrogen
(C) Hydrogen
(D) Copper
(E) None of the above/More than one of the above
Show Answer/Hide
33. Angstrom is a unit of
(A) wavelength
(B) energy
(C) frequency
(D) velocity
(E) None of the above/More than one of the above
Show Answer/Hide
34. Frequency is measured in
(A) hertz
(B) meter/ second
(C) radian
(D) watt
(E) None of the above/More than one of the above
Show Answer/Hide
35. Who discovered DNA?
(A) James Watson and Francis Crick
(B) Gregor Mendel
(C) Johannsen
(D) Hargovind Khorana
(E) None of the above/More than one of the above
Show Answer/Hide
Note – The credit for the discovery of the DNA goes to Frederick Micher (1869).
36. What is triglyceride?
(A) Protein
(B) Carbohydrate
(C) Fat
(D) Mineral
(E) None of the above More than one of the above
Show Answer/Hide
37. Electroencephalogram (EEG) is used in monitoring
(A) heart
(B) liver
(C) pancreas
(D) brain
(E) None of the above/More than one of the above
Show Answer/Hide
38. Body temperature is regulated by
(A) thalamus
(B) hypothalamus
(C) cerebellum
(D) medulla
(E) None of the above/More than one of the above
Show Answer/Hide
39. Choose the correct statement.
(A) Wavelength of red light is less than violet light.
(B) Wavelength of red light is more than violet light.
(C) Wavelength of violet light is more than green light.
(D) Wavelength of violet light is more than yellow light.
(E) None of the above/More than one of the above
Show Answer/Hide
40. The value of 40 degrees Celsius in Fahrenheit scale is
(A) 104 °F
(B) 100 °F
(C) 102 °F
(D) 75 °F
(E) None of the above/More than one of the above
Show Answer/Hide
