HSSC HARYANA CLERK EXAM, 13.06.2016 (Shift-II)

51. The least multiple of 7, which leaves a remamder of 4. when divided by 6, 9, 15 and 18 is.

(1) 74
(2) 94
(3) 184
(4) 364

Correct Answer: (4) 364

Solution:6, 9, 18, 15 LCM of = 2/3/3/5

Required number = 90K+4/7

K = 4, it divides by 7

∴ Number is 90k + 4 = 90 * 4 +4 = 364

52. If one-third of one-forth of a number is 15. then three tenth of that number is?

(1) 35
(2) 36
(3) 45
(4) 54

Correct Answer: (4) 54

Solution:

53. A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes. Both the taps are kept open for 10 minutes, and then the first tap is shut off after this, the tank will be completely filled in what time.

(1) 10 mins
(2) 15 mins
(3) 20 min
(4) 25 mins

Correct Answer: (3) 20 min

Solution:Efficiency of tank A = 1/20

Efficiency of tank B= 1/60

Combined efficiency = 1/20 + 1/60

= 4/60 = 1/15

Work in 10 minutes 1/15 * 10 = 2/3

Empty part = 1 - 2/3 = 1/3

Time required to fill empty part by 2nd pipe

= empty part/efficiency = 1/3 / 1/60= 20

54. Who among the following is associated with the invention of computers.

(1) Edison
(2) Babbage
(3) Mac Millan
(4) Rangabhashyam

Correct Answer: (2) Babbage

Solution:Charles Babbage is associated with the invention of Computer. He is known as the father of computer.

55. Which of the following criteria used for any metal to be used as a cooking utensil?

(1) Less thermal conductivity
(2) More thermal conductivity
(3) Less electrical conductivity
(4) More density

Correct Answer: (2) More thermal conductivity

Solution:More thermal conductivity is used for any metal to be used as a cooking utensil that is why It is prefered to cook food in Iron steel & Aluminum metal utensil. These metals transduct heat fastly

56. Which of the following metals is not affected by air and water under ordinary conditions?

(1) Iron
(2) Platinum
(3) Sodium
(4) None of these

Correct Answer: (2) Platinum

Solution:Platinum is not affected by airs water under ordinary conditions. If has 78 Atomic number & very expensive metal used in Jewelery.

57. How many pairs of waking legs does cockroach have?

(1) One
(2) Two
(3) Three
(4) Four

Correct Answer: (3) Three

Solution:Cockroach have Three pairs of leg It is member of Arthopoda family. It is omnivorous insect. Its antenna helps to search food.

58. Enzymes help in

(1) Respiration
(2) Digestion of food
(3) Immune system
(4) Reproduction

Correct Answer: (2) Digestion of food

Solution:Enzymes help in digestion of food. It work as an catalyst Enzyme was first time used in 1878 by kuhene.

59. Choose the correctly spelt word?

(1) Terminete
(2) Silhouette
(3) Flambuoyance
(4) Kaladeiscope

Correct Answer: (2) Silhouette

Solution:Silhouette - छाया आकृति,

Terminate समाप्त Flamboyance - चमकीला, Kaleidoscope - बहुरूपदर्शक

60. Fill in the blanks with appropriate prepostitions:

She stood ___the window and looked out____ a gray cat.

(1) at; at
(2) at: on
(3) by: at
(4) by: on

Correct Answer: (3) by: at

Solution:She stood by the window and looked out at a grey cat.