Aarvi Encon Maintenance Engineer Interview Questions and Answers

If 5x + 7 = 22, what is the value of x?
a) 3
b) 5
c) 6
d) 8

Which of the following numbers is a prime number?
a) 22
b) 27
c) 29
d) 32

If it takes 6 people 12 days to complete a task, how long will it take 8 people to complete the same task?
a) 6 days
b) 8 days
c) 9 days
d) 10 days

A pizza with a diameter of 16 inches costs $12. What is the cost per square inch of the pizza?
a) $0.75
b) $1.00
c) $1.50
d) $2.00

If a car travels 80 miles in 2 hours, what is its average speed in miles per hour?
a) 20 mph
b) 40 mph
c) 60 mph
d) 80 mph

What is the next number in the sequence: 1, 3, 6, 10, 15, ____?
a) 20
b) 21
c) 22
d) 23

If the perimeter of a square is 32 cm, what is the length of each side of the square?
a) 4 cm
b) 8 cm
c) 12 cm
d) 16 cm

If a recipe calls for 2 cups of flour to make 12 cookies, how many cups of flour are needed to make 24 cookies?
a) 2 cups
b) 3 cups
c) 4 cups
d) 5 cups

Which of the following angles is acute?
a) 90 degrees
b) 120 degrees
c) 150 degrees
d) 30 degrees

If 3x + 5y = 17 and 2x - 3y = 7, what is the value of x + y?
a) 2
b) 3
c) 4
d) 5

Write a function that takes in an array of integers and returns the sum of all the even numbers in the array.

Write a function that takes in a string and returns the number of vowels in the string.

Write a function that takes in a string and returns a new string with all the vowels removed.

Write a function that takes in two arrays of integers and returns a new array that contains only the elements that are common to both arrays.

Write a function that takes in an array of integers and returns a new array with the elements sorted in descending order.

Write a function that takes in a string and returns true if the string is a palindrome, and false otherwise.

Write a function that takes in a positive integer and returns the factorial of that number.

Write a function that takes in an array of integers and returns the second largest number in the array.

Write a function that takes in a string and returns a new string with the first letter of each word capitalized.

Write a function that takes in an array of integers and returns the product of all the elements in the array.