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- Question
Which of the following is not a valid variable name in C?
Options- A. p o, t
- B. p o t
- C. po_t
- D. p_ot
- Correct Answer
- p o, t
ExplanationComma is not allowed.
Microprocessors problems
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- 1. Consider the following DO statement in Fortran 77
DO 52 N = 1, 10, 3
The number of DO loop executions in the above statement is
Options- A. 1
- B. 10
- C. 3
- D. 4 Discuss
Correct Answer: 4
Explanation:
Do statement is executed when N = 1, 4, 7, 10, i.e., a total of 4 times.- 2. The number of storage classes in C is
Options- A. 2
- B. 3
- C. 4
- D. 6 Discuss
Correct Answer: 4
Explanation:
C has four storage classes viz. automatic storage class, register storage class, static storage class and external storage class.- 3. Binary number 1101.101 is equivalent to decimal number?
Options- A. 13.5
- B. 13.75
- C. 13.625
- D. 13.875 Discuss
Correct Answer: 13.625
Explanation:
Binary .101 equals 0.625 in decimal.- 4. MICR stands for
Options- A. Magnetic Ink Chart Receipt
- B. Magnetic Ink Character Recognition
- C. Magnetic Ink Chart Recognition
- D. Magnetic Ink Character Receipt Discuss
Correct Answer: Magnetic Ink Character Recognition
Explanation:
Magnetic ink character recognition is used in banking.- 5. IC (instruction cycle), FC (fetch cycle) and EC (executive cycle) are related as
Options- A. IC = FC - EC
- B. IC = FC + EC
- C. IC = FC + 2EC
- D. EC = IC + EC Discuss
Correct Answer: IC = FC + EC
Explanation:
Instruction cycle consists of fetch and execute cycles.- 6. To evaluate X = (A + B + 1.2) * (A + B - C) the sequence of operation is
Options- A. + + + - * =
- B. * + + + - =
- C. + + - * + =
- D. - + + + * = Discuss
Correct Answer: + + + - * =
Explanation:
Parenthesis has first priority.- 7. In a microprocessor
Options- A. all instructions need only one machine cycle
- B. some instructions need only one machine cycle while some other instructions need more than one machine cycle
- C. all instructions need only fraction of one machine cycle
- D. some instructions need less than one machine cycle Discuss
Correct Answer: some instructions need only one machine cycle while some other instructions need more than one machine cycle
Explanation:
Some instructrions do need more than one machine cycle.- 8. Which of the following DO statements is invalid in FORTRAN 77?
Options- A. DO 161 = 1, 15
- B. DO 16 1 = 1, 10, 1
- C. DO 16 I = - 5, 5, 2
- D. none of the above Discuss
Correct Answer: none of the above
Explanation:
All are valid.- 9. Consider the following
- The first letter of a Java variable is lower case.
- Each successive word in Java variable begins with a capital letter.
- All other letters are lower case.
- A Java variable can have a digit as first character.
Options- A. All
- B. 1, 2, 3 only
- C. 1, 2, 4 only
- D. 2, 3, 4 only Discuss
Correct Answer: 1, 2, 3 only
Explanation:
Digit as first character is not allowed.- 10. Most of the memory chips in static RAM
Options- A. do not require any supply
- B. need 2 V supply
- C. need 5 V supply
- D. need 12 V supply Discuss
Correct Answer: need 5 V supply
Explanation:
Digital chips need 5 V supply.
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- 1. Consider the following DO statement in Fortran 77