Nortek Security & Control Interview Questions, Process, and Tips

Ques:- Two trains starting at same time, one from Bangalore to Mysore and other in opposite direction arrive at their destination 1 hr and 4 hours respectively after passing each other.How nuch faster is one train from other?
Recent Answer : Added by Admin On 2020-05-17 12:04:20:

Its 2 times faster than the other train
v1*t=v2
v2*t=4*v1
solving these two,we get
v2/v1=2

Ques:- X can do a piece of work in 10 days. He works at it for 4 days and then Y finishes it in 9 days. In how many days can X and Y together finish the work?
Ques:- There are 9 coins. 8 of them are of 1 gm and 1 is of 2 grams. Find out the heavier coin in minimum number of weighing and how many weighing you need?
Ques:- 12 buckets of water fill a tank when the capacity of each tank is 13.5 liters. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 9 liters?
Recent Answer : Added by Admin On 2022-09-29 15:30:28:

Capacity of the tank =(12 x 13.5) liters =162 liters.

Capacity of each bucket =9 liters

Number of buckets needed = 162/9 =18.

Ques:- A train speeds past a pole in 15 sec and a platform 100 m long in 25 sec,find its length is?
Recent Answer : Added by Fatima On 2022-09-24 14:33:37:

It is assumed to be constant. Now, to cross past the pole, the train should cover a distance of x meters. Now, the time taken by the train to cross a platform of length 100 m is 25 seconds. Hence, the length of the train is 150 m.

Ques:- Sell me this stapler?(this pencil?this clock?or some other object on interviewer?s desk).
Ques:- Can you talk about a person who inspires you and why?
Ques:- Why you choice Mechanical Engineering
Ques:- About my studies?
Ques:- There are 6561 balls out of them 1 is heavy. Find the minimum number of times the balls have to be weighed for finding out the heavy ball.
Recent Answer : Added by divyansh On 2021-09-22 16:55:55:

Answer=8

Ques:- Tell me something abt urself
Ques:- What are your hobbies? or What are you passionate about?
Recent Answer : Added by DK BOSS On 2021-07-21 15:26:03:

“One of my hobbies is playing club sports. … Playing sports is my favorite pastime and my hobby because it’s not just the games I love, but also the socializing part that comes with it. I love to meet new people and go to new places for tournaments.”

Ques:- Why do want to join us?
Ques:- How many experience you have in this company?
Ques:- The average of first 10 odd numbers is?
Recent Answer : Added by nani Reddy On 2021-08-05 17:11:28:

first 10 odd num are 1,3,5,7,9,11,13,15,17,19
sum=100
avg=100/10
avg of 10 odd num =10

Ques:- 3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thieves and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?
Ques:- Anand and Deepak started a business investing Rs. 22,500 and Rs. 35,000 respectively. Out of a total profit of Rs. 13,800, Deepak’s share is:
Recent Answer : Added by Sachin On 2022-03-19 16:02:14:

8400

Ques:- Two trains are on same track and they are coming toward each other. The speed of first train is 50 KMs/h and the speed of second train is 70 KMs/h. A bee starts flying between the trains when the distance between two trains is 100 KMs. The bee first flies from first train to second train. Once it reaches the second train, it flies back to the second train ? and so on until trains collide. Calculate the total distance traveled by the bee. Speed of bee is 40 KMs/h. .
Recent Answer : Added by DK BOSS On 2021-07-15 09:17:12:

Answer: 66.67 km approx.

Solution:

Let the first train A move at u km/h.
Let the second train B move at v km/h.
Let the distance between two trains be d km
Let the speed of bee be b km/h
Therefore, the time taken by trains to collide = d/(u+v)
Now putting all the known values into the above equation, we get,

u = 50 km/hr
v = 70 km/hr
d = 100 km
b = 80 km/hr

Therfore, the total distance travelled by bee
= b*d/(u+v)
= 80 * 100/(50+70)
= 66.67 km (approx)

Ques:- A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15?
Recent Answer : Added by MAMIDI LIJITA SREE On 2023-01-21 17:36:29:

1

Ques:- How do you feel about reporting to a younger person?
Ques:- There was a race between 3 people. Me, Doug and Anne. When I take 21 steps the distance covered is equal to Doug's 24 steps and Anne's 28 steps. I take 6 steps to every 7 steps of Doug and 8 steps of Anne. Who won the race?
Recent Answer : Added by Kalyani Nanaware On 2022-08-14 16:43:09:

Doug won the race
Explanation-
The ratio of steps covered by me, Doug, and Anne is = 6:7:8

Since Distance covered in Me 21 steps = Distance covered by Doug 24 steps = Distance covered by Anne 28 steps

LCM (21, 24, 28) = 168

For a distance of 168 units, the ratio of the distance covered in each step is;
= 8 : 7 : 6
Therefore the ratio of speeds is;
= 8×6: 7×7: 6×8
= 48 : 49 : 48

Here, the speed of the Doug is more than the speed of me and Anne
Hence, Doug won the race

Ques:- Abt my final year project (since i m a fresher)
Ques:- A certain sum of money at simple interest amounted Rs.840 in 10 years at 3% per annum, evaluate the sum?
Recent Answer : Added by CS On 2022-08-14 16:31:43:

(p*r*t)/100 = I ………………..(p*3*10)/100 = 840 …..p = 84000/30 = 2800

Ques:- How are you fit for a soft skills trainer ?
Ques:- Tell me about an important issue you encountered recently?
Ques:- Your favourite area of interest
Ques:- Plc automation
Ques:- There are 1997 doors in a auditorium and as many as people as the no of doors open enter the auditorium .A door was closed and as many as people as no of doors open leave the auditorium . the process was repeated till the no of doors is equal to1.find the total no of peoples enter the auditorium?
Recent Answer : Added by Admin On 2020-05-17 12:02:12:

1997

Ques:- 2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
Recent Answer : Added by Kenneth R On 2022-08-14 16:46:03:

10.66 kmph

Ques:- In a class composed of x girls and y boys what part of the class is composed of girls?
Recent Answer : Added by marjorie nalunkuma On 2021-10-12 12:53:14:

x

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Devendra Bhardwaj With a decade of experience as a Job Hiring Expert, I am a results-driven professional dedicated to elevating recruitment strategies. My expertise lies in navigating the dynamic landscape of talent acquisition, employing innovative approaches to attract, assess, and secure top-tier candidates. I excel in optimizing hiring processes, leveraging cutting-edge technologies, and fostering collaborative relationships with stakeholders. A keen understanding of industry trends allows me to stay ahead, ensuring a competitive edge in securing the best talent for your organization. I am passionate about connecting the right people with the right opportunities and thrive in creating impactful, streamlined recruitment solutions.

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