Question 1

Modulus operator, %, can be applied to which of these?

Accepted Answer

A)  integers
B)  floating - point numbers
C)  both integers and floating - point numbers
D)  none of the mentioned C

Question 2

On applying Left shift operator, <<, on integer bits are lost one they are shifted past which position bit?

Accepted Answer

A)  1
B)  32
C)  33
D)  31 D

Question 3

. Which of these is returned by "greater than", "less than" and "equal to" operators?

Accepted Answer

A)  integers
B)  floating - point numbers
C)  boolean
D)  none of the mentioned C

Question 4

Which of these statements are incorrect?

Accepted Answer

A) equal to operator has least precedence B)
ackets () have highest precedence C) division operator, /, has higher precedence than multiplication operator D) addition operator, +, and subtraction operator have equal precedence

Question 5

What is the output of relational operators?

Accepted Answer

A)  integer
B)  boolean
C)  characters
D)  double

Question 6

Which of these operators is used to allocate memory to array variable in Java script?

Accepted Answer

A)  malloc
B)  alloc
C)  new
D)  new malloc

Question 7

Decrement operator, ??, decreases the value of variable by what number?

Accepted Answer

A)  1
B)  2
C)  3
D)  4

Question 8

Which operator is used to invert all the digits in a binary representation of a number?

Accepted Answer

A) ~ B) <<< C) >>> D) ^

Question 9

Which of these operators can skip evaluating right hand operand?

Accepted Answer

A)  !
B)  none of the mentioned
C)  &
D)  &&

Question 10

Which of these selection statements test only for equality?

Accepted Answer

A)  if
B)  switch
C)  if & switch
D)  none of the mentioned

Question 11

An expression involving byte, int, and literal numbers is promoted to which of these?

Accepted Answer

A)  int
B)  long
C)  byte
D)  float

Question 12

Which of the following is not a valid flow control statement?

Accepted Answer

A)  exit() 
B)  break
C)  continue
D)  return

Question 13

Which of these is an incorrect array declaration?

Accepted Answer

A)  intarr[] = new int[5]
B)  int [] arr = new int[5]
C)  intarr[] = new int[5].
D)  intarr[] = int [5] new

Question 14

What is the range of short data type in Java script ?

Accepted Answer

A)  -128 to 127
B)  -32768 to 32767
C)  -2147483648 to 2147483647
D)  none of the mentioned

Question 15

Which of these coding types is used for data type characters in Java script?

Accepted Answer

A)  ascii
B)  iso-latin-1
C)  unicode
D)  none of the mentioned

Question 16

Which of the following can be operands of arithmetic operators?

Accepted Answer

A)  numeric
B)  boolean
C)  characters
D)  both numeric & characters

Question 17

Which right shift operator preserves the sign of the value?

Accepted Answer

A) << B) >> C) <<= D) >>=

Question 18

Which of the following is not a decision making statement?

Accepted Answer

A)  if
B)  if-else
C)  switch
D)  do-while

Question 19

What is the range of byte data type in Java script?

Accepted Answer