**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

### Click here to 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

### Click here to 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

### Click here to Show Answer/Hide

**24. If x = , then 9x ^{2} – 3x – 11 is equal to**

(A) -13

(B) 13

(C) -5

(D) -17

(E) 17

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to Show Answer/Hide

**29. If 3 ^{x+8} = 27^{2x+1} , then the value of x is**

(A) 90

(B) 1

(C) -1

(D) 10

(E) – 100

### Click here to Show Answer/Hide

**30. If , then the S is **

(A)

(B) 56

(C) 111

(D) 115

(E)

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to Show Answer/Hide

*The credit for the discovery of the DNA goes to Frederick Micher (1869).*

**Note –****36. What is triglyceride?**

(A) Protein

(B) Carbohydrate

(C) Fat

(D) Mineral

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

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to 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

### Click here to Show Answer/Hide