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Technical Quiz

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.

What is the color code for a 220 5% resistor?

a)

Red, Red, Brown, Gold

b)

Orange, Orange, Black, Gold

c)

Red, Red, Black, Gold

d)

Red, Red, Brown, Silver

2.

Which resistive component is designed to be temperature sensitive?

a)

Thermistor

b)

Rheostat

c)

Potentiometer

d)

Photoconductive cell

3.

Primary batteries, unlike secondary batteries, may be:

a)

charged once

b)

used once

c)

recharged over and over

d)

stored indefinitely

4.

In a series–parallel circuit, individual component power dissipations are calculated using:

a)

individual component parameters

b)

a percent of the voltage division ratio squared

c)

total current squared multiplied by the resistor values

d)

a percent of the total power depending on resistor ratios

5.

The first goal to accomplish in analyzing a complex series-parallel circuit is to

a)

equate all parallel components

b)

equate all series components

c)

solve for all the voltage drops

d)

solve for the total current and resistance

6.

This symbol to BS3939 represents a?

a)

Diode

b)

Capacitor

c)

LED

d)

Resistor

7.

The band round the body of a diode denotes the - - - - - - - - terminal

(two answers for this question).

a)

Positive

b)

Negative

c)

Anode

d)

Cathode

8.
a)
b)
c)
d)
9.
a)
b)
c)
d)
10.

Select the access level/s of a private modifier.

a)

Class

b)

Package

c)

Subclass

d)

World

11.

How do you call a method in Java?

a)

methodName;

b)

methodName[];

c)

methodName();

d)

(methodName);

12.
Odd one out based on reference types
a)
enumerations
b)
annotations
c)
array
d)
package
13.

What is not a Java primitive data type?

a)

float

b)

byte

c)

Boolean

d)

char

14.

What was Java originally designed for?

a)

Interactive TV

b)

Internet

c)

Gaming

d)

Cars

15.

Command to compile Java program

a)

javax

b)

javay

c)

javac

d)

Java

16.

Who invented Java?

a)

James Gosling

b)

Sergey Brin

c)

Steve Jobs

d)

Bill Gates

e)

Tim Berners-Lee

17.

The name of the following should be the file name in Java

a)

Object Name

b)

Variable Nam

c)

Class Name

d)

Array Name

18.

How do you create a variable with the floating number 2.8?

a)

byte x = 2.8f

b)

x = 2.8f;

c)

float x = 2.8f;

d)

int x = 2.8f;

19.

The value of a string variable can be surrounded by single quotes.

a)

true

b)

false

20.

The Nyquist theorem for sampling

(choose more than one)

a)

Relates the conditions in time domain and frequency domain

b)

Helps in quantization

c)

Limits the bandwidth requirement

d)

Gives the spectrum of the signal

21.

The following graph is

a)

Unit step function

b)

Ramp function

c)

Signum function

d)

Delta function

22.

Which system below is non-causal?

a)

y[n]=0.23x[n−1]+0.2x[n]−1.5x[n+1]y\left[n\right]=0.23x\left[n-1\right]+0.2x\left[n\right]-1.5x\left[n+1\right]

b)

y[n]=3.5x[n]+x[n−2]y\left[n\right]=3.5x\left[n\right]+x\left[n-2\right]

c)

y[n−2]+2y[n]=x[n]y\left[n-2\right]+2y\left[n\right]=x\left[n\right]

d)

y[n+2]+2y[n]=x[n]+7x[n−5]y\left[n+2\right]+2y\left[n\right]=x\left[n\right]+7x\left[n-5\right]

23.

Types of actuators

a)

Pump

b)

Piston

c)

Motor

d)

Speaker

24.
A small computer found inside control systems such as air-conditioning units...
a)
Embedded Microprocessor
b)
Mainframe
c)
Server
d)
PDA
25.

If poles of system are lying on the imaginary axis in s-plane, the system will be

a)

Unstable

b)

Marginally stable

c)

Conditionally stable

d)

Unstable

26.
When the output of a system is used to influence input it is known as...
a)
Feedback
b)
Processing
c)
Automation
d)
Measuring
27.
Which of these is not a control system output device?
a)
Projector
b)
LED
c)
Buzzer
d)
Actuator
28.

the deviation of the output of control system from desired response during steady state is called

a)

steady state error

b)

transient error

29.

Microcontrollers are easy to use, troubleshoot and maintain, programmable and easily interfaced.

a)

True

b)

False

30.

The number of bits processed in a single instruction is known as ?

a)

Instruction Set

b)

Bandwidth

c)

Bandspeed

d)

Instruction Speed

31.

The __________ controls the flow of data and instructions within the computer.

a)

control unit

b)

register array

c)

accumulator

d)

ALU

32.

Why microcontrollers are not called general purpose computers?

a)

because they have built in RAM and ROM

b)

because they design to perform dedicated task

c)

because they are cheap

d)

because they consume low power

33.

The advantage of memory mapped I/O over I/O mapped I/O is,

a)

Faster

b)

Many instructions supporting memory mapped I/O

c)

Require a bigger address decoder

d)

All the above

34.

True or False? The computational capacity of the microcontroller is very high. Hence can perform complex tasks.

a)

True

b)

False

35.

A microcontroller is a complete microcomputer with integrated inputs, outputs, memory, timers and other essential items.

a)

True

b)

False

36.

Actuators are outputs; they “take action” in the physical world.

a)

True

b)

False

37.

Identify the image shown.

a)

Raspberry Pi Board

b)

Arduino Board

c)

Microprocessor Board

d)

CPU Board

38.

What is false about microprocessor?

a)

The microprocessor is of small size chip, hence is not portable.

b)

microprocessor chips are available at low prices

c)

microprocessors are versatile

d)

failure rate of an IC in microprocessors is very low

39.

How many storage locations are available when a memory device has twelve address lines?

a)

144

b)

512

c)

2048

d)

4096

40.

A nonvolatile type of memory that can be programmed and erased in sectors, rather than one byte at a time is:

a)

flash memory

b)

EPROM

c)

EEPROM

d)

MPROM

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