Hcl Conet Aptitude Questions_

HCL COMNET Placement Paper – APTITUDE QUESTIONS

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HCL COMNET APTITUDE QUESTIONS

Part III Q. No.1: Which of the following has high electrical resistivity?

A. Copper

B. Gold

C. Carbon

D. Silver

Q. No.2: The resistance of 200 m. long circular copper wire is 21Ω.If its thickness is 0.44mm,What is the resistivity(ohm-m) of the copper is-

A. 1.597*10-8

B. 2.507*10-8

C. 5.597*10-6

D. None of these

Q. No.3: Metals have temperature coefficient of resistance

A. Positive

B. Negative

C. May be positive or Negative

D. None of these



Q. No.4: The resistance of two wires is 25Ω when connected in series and 6Ω when connected in parallel. The resistance of each wire is-

A. 12 &13Ω

B. 15&10Ω

C. 20& 5 Ω

D. 24&1Ω

Q. No.5: A current of 3A flows through 10Ω resistor. The energy dissipated in 5 seconds is

A. 450J

B. 150J

C. 250J

D. None of these

Q. No.6: Ideal current source has its internal resistance equal to

A.1Ω.

B.2Ω.

C. 0Ω

D. Infinite

Q. No.7: If resistance of all three branches of star connected load is 1Ω each, then the resistance of each branch of equivalent delta load would be-

A. 3Ω



B. 9Ω

C. 0.3Ω

D. 1/3Ω

Q. No.8: A P.D of 300V is maintained across the terminals of the capacitor. The electric field strength (kV/m) between the plate gaps of (0.3mm) is-

A. 1000

B. 2000

C. 3000

D. 4000

Q. No.9: An 8micro-farad capacitor is connected in series with 0.5MΩ resistor. The time constant of the RC circuit is

A. 16 sec

B. 6 sec

C. 5 sec

D. 4 sec

Q. No.10: An 8 micro-farad capacitor is charged from a 100V supply. The energy stored in the capacitor is-

A. 0.004J

B. 0.0016J

C. 0.008 J



D. None of these

Answers to the above questions-

Answer 1 – C

Answer 2 – A

Answer 3 – D

Answer 4 – B

Answer 5 – A

Answer 6 – D

Answer 7 – A

Answer 8 – D

Answer 9 – D

Answer 10 – D

Q. No.1: 3 numbers have an average of 30.if the two numbers are 14 and 28.

The third number is?

A. 48

B. 41

C. 58



D. 55

Q. No.2: If there are 6 arithmetic means between 5 and 33 then common

difference is?

A. 8

B. 4

C. 9

D. 10

Q. No.3: In a geometric progression, the first term and the common ratio

are both equal to 2. Find the fourth term.

A. 16

B. 18

C. 8

D. 26

Q. No.4: 14 men can do a work in 5 days working 4 hours a day. In how

many days can 7 men do the same work, working in 10 hours a day?

A. 4

B. 8



C. 12

D. 16

Q. No.5: What is the highest power of 3 in 200!?

A. 197

B. 97

C. 65

D. 82

Q. No.6: In a kilometer race, A beats B by 200 mtr and C by 360 mtr. In a

race of 500 mtr by how many meters does B beat C?

A. 80

B. 200

C. 100

D. 160

Q. No.7: Pipe A can fill a tank in 6 hrs. Due to leak at bottom it takes 9 hours

to fill the tank. In what time the leak alone can empty the full tank?

A. 16

B. 15



C. 18

D.17

Q. No.8: In how many seconds does a 180m long train moving at 108kmph

cross a platform of length 150 mtr?

A. 11 sec

B. 9 sec

C. 8 sec

D. 7 sec

Q. No.9: What is the total surface area of the hemisphere, whose radius is

10.5cm?

A. 1049.5

B. 1039.5

C. 999.5

D. 1085.5

Q. No.10: 5 persons are sitting in a round table in such a way that the tallest

person always sits next to the smallest person?

A. 16



B. 15

C. 12

D.17


Answer 1 – A

Answer 2 – B

Answer 3 – A

Answer 4 – A

Answer 5 – B

Answer 6 – B

Answer 7 – C

Answer 8 – A

Answer 9 – D

Answer 10 – C

Part I



Q. No.1: A bag contains a total of 90 coins in the form of 20 paise and 25 paise coins. If the total value of coins in the bag is Rs.21. find the number on 25 paise coins in the bag-

A. 60

B. 55

C. 65

D. 70

Q. No.2: Ten years ago, the age of Anand was one third the age of Bala at that time, the present age of Bala is 12 years more than the present age of Anand. Find the present age of Anand?

A. 20

B. 18

C. 16

D. 22

Q. No.3: The Present ages of A & B are in the ratio of 9:7. 13 years ago their ages were in the ratio 25: 18. What is the difference of their ages?

A. 20

B. 16

C. 18

D. 14

Q. No.4: The sum of a two digit number and the number formed by reversing its digits is 110.if the tens digit is 2 more than the unit’s digit. Find the number-



A. 44

B. 64

C. 24

D. 42

Q. No.5: Ajay and Sita are two of Mr. Kumar’s sons. Ajay has half as many brothers as sisters. Sita has as many brothers as sisters. Find the number of children Mr. Kumar has-

A. 7

B. 8

C. 6

D. 9

Q. No.6: A car covers 4 successive 3km stretches at speed of 10kmph,20kmph,30kmph&:60kmph resp. Its average speed is?

A. 60

B. 20

C. 30

D. 40

Q. No.7: By selling 99 pens, a trader gains the cost of 33 pens. Find his gain percentage-

A. 33 1/3%

B. 66 2/3%



C. 50%

D. 75%

Q. No.8: How many kgs of Basmati rice costing Rs.42/kg should a shopkeeper mix with 25 kgs of ordinary rice costing Rs.24 per kg so that he makes a profit of 25% on selling the mixture at Rs.40/kg?

A. 30 kgs

B. 12 kgs

C. 20 kgs

D. 40 kgs

Q. No.9: A certain sum of money amounts to Rs1125 in 5 years and to Rs1200 in 8 years. Find the sum and the rate of interest.

A. 5% p.a.

B. 8% p.a.

C. 2.5% p.a.

D. 6% p.a.

Q. No.10: A, B and C started a business by investing Rs. 2, 20, 000, Rs. 3, 50, 000 and Rs. 4, 50, 000. Find the share out of an annual profit of Rs. 10, 200?

A. 2200, 3500, 4500

B. 2300, 2400, 4500

C. None of these




Answer 1 – A

Answer 2 – C

Answer 3 – D

Answer 4 – B

Answer 5 – A

Answer 6 – B

Answer 7 – A

Answer 8 – B

Answer 9 – C

Answer 10 – A

Hcl Conet Aptitude Questions_

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