Quiz Electronics Engineering 14 July 2020

Quiz Electronics Engineering
Exam: NIC
Topic: Miscellaneous
Date: 14/07/2020

Each Question carries 1 Mark
Negative Marking: 1/4
Time: 10 Minutes

Q1. A Process Control Block(PCB) does not contain which of the following?
(a) Code
(b) Stack
(c) Bootstrap program
(d) Data



Q2. What is the best case complexity in building a heap?
(a) O(n)
(b) O(n^2)
(c) O(n*logn *logn)
(d) O(nlogn)


Q3. Which one of the following model is not suitable for accommodating any change?
(a) Build & Fix Model
(b) Prototyping Model
(c) Waterfall Model
(d) RAD Model



Q4. ___________ is the most general phase structured grammar.
(a) Regular
(b) Context sensitive
(c) Context free
(d) All of these


Q5. For a memory system, the cycle time is
(a) same as the access time
(b) longer than the access time
(c) shorter than the access time
(d) multiple of the access time



Q6. A full binary tree can be generated using ______
(a) in-order
(b) pre-order
(c) post-order
(d) post-order & pre-order



Q7. The part of machine level instruction, which tells the central processor what has to be done, is
(a) Operation code
(b) Address
(c) Locator
(d) Flip-Flop



Q8. The process of converting the analog sample into discrete form is called
(a) Modulation
(b) Multiplexing
(c) Quantization
(d) Sampling



Q9. What is an advantage of MOS transistor structure in integrated circuits?
(a) Faster switching
(b) less capacitance
(c) lower resistance.
(d) higher component density and lower cost.


Q10. What is the reciprocal of reactance?
(a) Susceptance
(b) Inductance
(c) Resistance
(d) None of these


S1. Ans.(c)
Sol. PCB contains the information of the process related to it. It has information related to –
Process number
Process state
Program counter
Stack Pointer
Memory limits
List of Open files

S2. Ans.(a)
Sol. The best case time complexity of create and Build Heapify algorithm is O(n).

S3. Ans.(c)
Sol. Waterfall Model provides sequential flow of any operation so in reality these procedure is not followed. It is not suitable for providing any change.

S4. Ans.(b)

S5. Ans.(b)
Sol. Access Time tells about the time taken by the processor to respond to any read or write request but cycle time is the minimum time period between two successive requests. So, The cycle time is longer than the access time.

S6. Ans.(d)
Sol. Every node in a full binary tree has either 0 or 2 children. We can generate a full binary tree using post-order and pre-order traversals.

S7. Ans.(a)
Sol. Operation Code also called as ‘Opcode’ carries instruction for performing any operation. Central Processor fetches the opcode and execute that instruction.

S8. Ans.(c)
Sol. Sampling converts a continuous time-varying signal into a discrete-time signal with real numbers. Quantization is representing the sampled values of the amplitude by a finite set of values. Quantization converts a continuous-amplitude sample into a digital signal i.e. discrete form.

S9. Ans.(d)

S10. Ans.(a)
Sol. Capacitor and Inductor shows the reactance property. It shows the opposing effect on current direction. Susceptance with reciprocal property in comparison with reactance, it allows the current to flow in the same direction without opposing the current direction.

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