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Worksheets

EST 26

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Allows multiple outputs to connect a wire, but only one of them actually drive a 1 or a 0 onto the line

a)

disconnector

b)

tri-state buffer

c)

connector

d)

register

2.

Which is not a function of a control bus?

a)

tell the input/output registers to latch the value currently on the data bus

b)

tell the instruction register to latch the value currently on the data bus

c)

tell the program counter to increment

d)

tell the program counter to reset to zero

3.

Contains bytes of information, and the microprocessor can read or write to those bytes depending on whether the RD or WR line is

a)

ROM

b)

PROM

c)

RAM

d)

DRAM

4.

When the microprocessor starts, it begins executing instructions it finds in the

a)

DOS

b)

BIOS

c)

AUTOEXEC.BAT

d)

SYSTEM.INI

5.

A situation or a term used where instruction execution overlap.

a)

overflow

b)

pipelined architecture

c)

overlapped instructions

d)

execution overlap

6.

Which of the following is not a basic type of circuit?

a)

the R-circuit

b)

the C-circuit

c)

the L-circuit

d)

the R-L-C-circuit

7.

In each case of the basic type of circuit, current will depend upon ___________.


I. magnitude of emf

II. Multiplying factors

III. corresponding ohmic values

IV. Corresponding inductance values

a)

I and II

b)

III and IV

c)

II and III

d)

I and III

8.

What is the unit of inductance?

a)

Farad

b)

Ohm

c)

Henry

d)

Mho

9.

Unit of capacitance.

a)

Farad

b)

Ohm

c)

Henry

d)

Mho

10.

Unit of reactance.

a)

Farad

b)

Ohm

c)

Henry

d)

Mho

11.

Unit of admittance.

a)

Farad

b)

Ohm

c)

Henry

d)

Mho

12.

There are ____ possible series combinations of R, L, and C.

a)

3

b)

5

c)

4

d)

6

13.

The behavior of a pure resistor in an a-c circuit is ___________ to that in d-c circuit.

a)

not similar

b)

may be similar

c)

sometimes similar

d)

exactly similar

14.

Current and voltage phasors are ________ in resistor circuits.

a)

sometimes in phase

b)

never in phase

c)

always in phase

d)

out-of-phase

15.

A pure inductor in an a-c circuit takes a current that ________.

a)

leads the impressed emf by exactly 90 electrical degrees.

b)

lags behind the impressed emf by exactly 90 electrical degrees.

c)

leads the impressed emf by the computed electrical degrees.

d)

lags behind the impressed emf by the computed electrical degrees.

16.

In a system with MOS devices, the main bus loading factor is likely to be

a)

Resistive

b)

Current

c)

Capacitive

d)

Static charge

17.

Which is not true regarding a CMOS inverter?

a)

Essentially no current flows for logic 0 or logic 1 input

b)

For devices of similar dimensions pmos is slower than nmos

c)

Full logical 0 and 1 levels are presented at the output

d)

Increasing the input frequency, decreases the power dissipation

18.

In MOS devices, the oxide is usually

a)

MnO

b)

SiO

c)

SiO2

d)

H2O

19.

Material usually used as gate of MOS for IC.

a)

Monocrystalline silicon

b)

Gold

c)

Polysilicon

d)

Platinum

20.

A CMOS with parallel pmos and complementary series nmos is equivalent to logical

a)

nand gate

b)

nor gate

c)

and gate

d)

or gate

21.

A CMOS with series pmos and complementary parallel nmos is equivalent to logical

a)

nand gate

b)

nor gate

c)

and gate

d)

or gate

22.

Which of the following is the probable output if all inputs of a TTL gate are binary 1?

a)

Interdeterminate

b)

Determinable

c)

Binary 1

d)

Binary 0

23.

Which is not an advantage of CMOS over TTL logic family?

a)

Lower power dissipation

b)

Greater fan-out

c)

Lower propagation delay

d)

Greater packing density

24.

A __________ is a junction field effect transistor with a Schottky barrier instead of a normal semiconductor junction.

a)

biFET

b)

MOSFET

c)

MESFET

d)

JUGFET

25.

It is a type of ROM the contents of which can be erased by exposure to ultraviolet radiation.

a)

EPROM

b)

PROM

c)

EEPROM

d)

EAPROM

26.

It is a data manipulated by a computer program.

a)

Source program

b)

Database

c)

Object program

d)

Language

27.

It is a program written in a language understandable by human.

a)

Source program

b)

Database

c)

Object program

d)

Language

28.

A program written in machine language.

a)

Source program

b)

Database

c)

Object program

d)

Language

29.

A program that translates instructions written in assembly language into machine code.

a)

Assembler

b)

Interpreter

c)

Compiler

d)

Translator

30.

Invented computer mouse in 1964.

a)

Douglas Engelbart

b)

R G Sweet

c)

Allen and Gibbons

d)

Bryant Rogers

31.

Invented fiber optics communications in 1966.

a)

Douglas Engelbart

b)

R G Sweet

c)

Kao and Hockham

d)

Bryant Rogers

32.

Invented IMPATT diode in 1964.

a)

Douglas Engelbart

b)

Johnson and deLoacn

c)

Kao and Hockham

d)

Bryant Rogers

33.

Invented TRAPATT diode in 1967.

a)

Douglas Engelbart

b)

Johnson and deLoach

c)

Kao and Hockham

d)

Prager, Chang and Weisbrod

34.

Invented BARITT diode in 1968.

a)

G T Wright

b)

Johnson and deLoach

c)

Kao and Hockham

d)

Prager, Chang and Weisbrod

35.

Invented IC in 1958.

a)

G T Wright

b)

Johnson and deLoach

c)

Jack Kilby

d)

Prager, Chang and Wesibrod

36.

Invented the IC aluminum metallization in 1968.

a)

G T Wright

b)

Robert Noyce

c)

Billy Jack

d)

Prager, Chang and Weisbrod

37.

Invented the internet in 1969.

a)

G T Wright

b)

Robert Noyce

c)

Jack Kilby

d)

ARPANET

38.

Invented the UNIX operating system in 1970.

a)

Bell Labs, University of California

b)

Robert Noyce

c)

Jack Kilby

d)

ARPANET

39.

Invented the CCD in 1970.

a)

Bell Labs, University of California

b)

Robert Noyce

c)

W S Boyle and G E Smith

d)

ARPANET

40.

Invented the video games in 1972.

a)

Bell Labs, University of California

b)

Magnavox

c)

W S Boyle and G E Smith

d)

ARPANET

41.

Invented the I2L integrated circuit in 1972.

a)

Bell Labs, University of California

b)

Magnavox

c)

W S Boyle and G E Smith

d)

Hart and Slob

42.

Invented CATT in 1974.

a)

Yu, Cady and Tantraporn

b)

Magnavox

c)

W S Boyle and G E Smith

d)

Hart and Slob

43.

Meters with moving coil are normally used for measuring _________.

a)

dc only

b)

ac only

c)

both ac and dc

d)

% of value of dc

44.

Another name of PMMC instrument.

a)

ferromagnetic

b)

electrodynamometer

c)

D’ Arsonval

d)

iron vane

45.

Find the voltage drop developed across D’ Aarsonval meter movement having an internal resistance of 1 k ohm and full deflection current of 150 micro amp.

a)

150 micro V

b)

150 kV

c)

150 V

d)

150 mV

46.

It consists of a permanent magnet, moving coil, and spring and the deflection of the pointer depends upon the interaction of the magnetic fields of the current carrying coil and permanent magnet.

a)

ferromagnetic

b)

electrodynamometer

c)

D’ Arsonval

d)

iron vane

47.

What is the common type of meter movement?

a)

Fixed coil

b)

Digital

c)

Farad

d)

D’ Arsonval

48.

With no added gadget, D’ Arsonval meter can be used to measure.

a)

AC

b)

AC and DC

c)

DC

d)

dynamic resistance

49.

An instrument used to measure the voltage generated by human body parts in relation to the action of the human heart.

a)

ECG

b)

EEG

c)

ESC

d)

ETX

50.

How many decibels gain does an amplifier if it produces 40-W output with an input of 0.016 W?

a)

3.398 dB

b)

33.9 dB

c)

67.959 dB

d)

–33.9 dB

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