Question 1

In the accompanying figure, transistor ____ is connected in series with K1, which is the coil of a 12- volt DC relay.&#10; &#10;A) Q1&#10;B) Q3&#10;C) C1&#10;D) C3

Accepted Answer

B

Question 2

Electrons are ____ particles.&#10;A) negative&#10;B) positive&#10;C) neutral&#10;D) limiting

Accepted Answer

Electrons are negatively charged particles that orbit the nucleus of an atom.

Question 3

The windshield wiper delay circuit on many automobiles is a good example of the on-delay type of&#160; circuit.

Accepted Answer

False

Question 4

The pulse timer and the on-delay timer have the same functionality and construction.

Accepted Answer

The pulse timer generates a fixed-duration output pulse in response to an input signal, while an on-delay timer delays its output activation by a preset time after receiving an input signal, indicating different functionalities and often different constructions.

Question 5

In a simple pulse-timer circuit, a ____ is most commonly used to provide a pulse.&#10;A) junction transistor&#10;B) triac&#10;C) capacitor&#10;D) unijunction transistor

Accepted Answer

A unijunction transistor is most commonly used in simple pulse-timer circuits to provide a pulse due to its ability to generate a very sharp pulse once the voltage across it reaches a certain threshold.

Question 6

When the on-delay timer is turned on, it remains that way until the power is interrupted.

Accepted Answer

An on-delay timer starts timing when power is applied, but it does not change its output state (turn on) until the set time has elapsed. It remains in its output state until the power is interrupted or turned off.

Question 7

The pulse timer turns itself back off after it has been turned on.

Accepted Answer

A pulse timer is designed to output a pulse for a specific duration; after this duration, it turns itself back off automatically.

Question 8

A ____ transistor steals the base current from another transistor to keep it turned off.&#10;A) sink&#10;B) drain&#10;C) stealer&#10;D) vampire

Accepted Answer

The answer of A ____ transistor steals the base current...

Question 9

In the accompanying figure, the time between pulses is determined by the RC time constant of ____&#160; and C1.&#10; &#10;A) R1 - R2&#10;B) R1 + R2&#10;C) R1 X R2&#10;D) R1 / R2

Accepted Answer

The answer of In the accompanying figure, the time between...

Question 10

In a simple pulse-timer circuit, electrons flow from ground through the base-emitter junction to the&#160; capacitor.

Accepted Answer

In a simple pulse-timer circuit, electrons flow from the positive terminal of the capacitor, through the base-emitter junction, to ground.

Deck 32: The Pulse Timer