61. The remaining address line of ______ bus is decoded to generate chip select signal A. data B. address C. control bus D. both (a) and (b) Answer Option : B 62. ______ signal is generated by combining RD and WR signals with IO/M A. control B. memory C. register D. system Answer Option : […]
71. The ____ is used to connect more microprocessor A. peripheral device B. cascade C. I/O devices D. control unit Answer Option : B 72. CS connect the output of ____ A. encoder B. decoder C. slave program D. buffer Answer Option : B 73. In which year, 8086 was introduced? A. 1978 B. 1979
81. In 8086 microprocessor one of the following statements is not true? A. coprocessor is interfaced in max mode. B. coprocessor is interfaced in min mode C. I /O can be interfaced in max / min mode. D. supports pipelining Answer Option : B 82. Address line for TRAP is? A. 0023H B. 0024H C.
91. Which is not an operand? A. Variable B. Register C. Memory location D. Assembler Answer Option : D 92. Which is not part of the execution unit (EU)? A. Arithmetic logic unit (ALU) B. Clock C. General registers D. Flags Answer Option : B 93. A 20-bit address bus can locate _____ A. 1,048,576
What is Java Programming? java programming mcq questions and answers pdf free download. Java is a programming language and a platform. Java is a high level, robust, object-oriented and secure programming language. Java was developed by Sun Micro systems (which is now the subsidiary of Oracle) in the year 1995. James Gosling is known as
01. Which of the following option leads to the portability and security of Java? A. Bytecode is executed by JVM B. The applet makes the Java code secure and portable C. Use of exception handling D. Dynamic binding between objects Answer Option : A 02. Which of the following is not a Java features? A.
11. Which of the following creates a List of 3 visible items and multiple selections abled? A. new List(false, 3) B. new List(3, true) C. new List(true, 3) D. new List(3, false) Answer Option : B 12. Which of the following for loop declaration is not valid? A. for ( int i = 99; i
21. What do you mean by chained exceptions in Java? A. Exceptions occurred by the VirtualMachineError B. An exception caused by other exceptions C. Exceptions occur in chains with discarding the debugging information D. None of the above Answer Option : B 22. In which memory a String is stored, when we create a string
31. Which of the following is a valid syntax to synchronize the HashMap? A. Map m = hashMap.synchronizeMap(); B. HashMap map =hashMap.synchronizeMap(); C. Map m1 = Collections.synchronizedMap(hashMap); D. Map m2 = Collection.synchronizeMap(hashMap); Answer Option : C 32. Which of the following is a mutable class in java? A. java.lang.String B. java.lang.Byte C. java.lang.Short D. java.lang.StringBuilder
41. What is the default encoding for an OutputStreamWriter? A. UTF-8 B. Default encoding of the host platform C. UTF-12 D. None of the above Answer Option : B 42. What are the Type Conversions available in Java language? A. Narrowing Type Conversion B. Widening Type Conversion C. A and B D. None of the
51. A boolean literal in Java can be type casted to which data type? A. byte B. short C. int D. None of the above Answer Option : 4 52. If a variable or operand in an expression is type long, then all the operands are type promoted to which data type? A. int B.
61. What is the other name for Relational Operators in Java? A. Comparison operators B. Conditional operators C. A and B D. None of the above Answer Option : C 62. How many minimum number of operands are required to use Comparison operators in Java? A. 1 B. 2 C. 3 D. 4 Answer Option
71. Which is the Logical operator in Java that works with a Single Operand? A. Logical AND B. Logical OR C. Logical Exclusive OR D. Logical NOT Answer Option : D 72. Which among the following is a Logical Unary NOT operator in Java? A. ~ B. ! C. # D. ^ Answer Option :
81. Which is fast among OR(|) and Short Circuit OR (||) operators in Java? A. OR Operator B. Short Circuit OR operator C. Both work at the same speed D. None of the above Answer Option : B 82. Why are Short Circuit AND (&&) and Short Circuit OR (||) operators are fast in Java?
91. What is the other name for a Question Mark – Colon (?:) operator in Java? A. Special Relational operator B. Special Logical Operator C. Ternary Operator D. None Answer Option : C 92. Java Ternary operator is sometimes called ____. A. Relational Operator B. Conditional Operator C. Logical Operator D. None Answer Option :
What is Electrical circuit Electrical circuit is an interconnection of electrical components. An electrical circuit consists of batteries, resistors, inductors, capacitors, switches or transistors. An electrical network consists of a closed loop. A circuit is a closed path where electrons flow in a wire. As long as the copper wire is allowed to itself, the
01. The measure of rate of flow of electric charge through an electrical conductor is known as A. electric current B. electrical charge C. electric cell D. electric circuit Answer Option : A 02. If electric wires and appliances are overheated due to high voltage of electric current they can A. catch fire B. burn
11. Two or more cells when connected in series make a A. battery B. circuit C. terminal D. resistor Answer Option : A 12. The energy which modern gadgets, devices and machines use is A. electrical B. magnetic C. thermal D. chemical Answer Option : A 13. A pure capacitor connected across an A.C. voltage
21. The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? A. VC and VR B. VL and VR C. VC and VL D. None of the above Answer Option : C 22. The period of a sine wave is _________ seconds. Its frequency is A. 20
31. The safest value of current the human body can carry for more than 3 second is A. 4 mA B. 9 mA C. 15 mA D. 25 mA Answer Option : B 32. The purpose of a parallel circuit resonance is to magnify A. Current B. Voltage C. Power D. Frequency Answer Option :
41. The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of A. Iron loss in core B. Skin effect C. Increase in temperature D. Capacitive effect between adjacent coil turns Answer Option : A 42. Skin effect occurs when a conductor carries current at _________
51. The series and parallel resonance on L-C circuit’ differs in that A. Series resistance needs a low-resistance source for sharp rise in current B. Series resonance needs a high-resistance source for sharp increase in current C. Parallel resonance needs a low-resistance source for a sharp increase in impedance D. Parallel resonance needs a low-resistance
61. The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is A. 4 kVAR B. 6 kVAR C. 8 kVAR D. 16 kVAR Answer Option : B 62. In a sine wave the slope is constant A. Between 0° and 90°
71. For the same peak value, which of the following wave has the least mean value? A. Half wave rectified sine wave B. Triangular wave C. Sine wave D. Square wave Answer Option : A 72. The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition
81. In a series L-C circuit at the resonant frequency the A. Current is maximum B. Current is minimum C. Impedance is maximum D. Voltage across C is minimum Answer Option : A 82. A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to A. The
