CHNM_Safe Working Practice & Introduction to Computer Components

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Created on March 12, 2020
Basic Electrical concepts

ITI CHNM Mock Test : Safety precaution, Basic Electrical Concept

Safety precaution, Basic Electrical Concept

Name

1 / 62

Category: Introduction to Resistors

The purpose of using flux in soldering is to.......

Increase fluidity of solder metal

Feel up gaps left in a bad joint

Carbon steel

Prevent oxides forming

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Category: Introduction to Resistors

In a ____________ circuit, the total resistance is smaller than the smallest resistance in the circuit.

Series

Parallel

Either series or parallel

Neither series nor parallel

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Category: Introduction to Resistors

Batteries are generally connected in______

Parallel

Series

Either series or parallel

Neither series nor parallel

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Category: Introduction to Resistors

Potentiometer is a ____ type of resistor ?

Fixed Resistor

Power Resistor

variable resistors

None of the above

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Category: Introduction to Resistors

The basic laws for analyzing an electric circuit are :-

Ohms Law

Newtons laws

Kirchhoff’s laws

Faradays laws

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Category: Introduction to Resistors

_________is a fixed resistor which reduces the flow of electric current by using its resistive element.

Fixed Resistor

Thin Film Resistor

Carbon composition resistor

None of the above

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Category: Introduction to Resistors

Kirchhoff First Law that is sum of current equal to zero at a junction, deals with the conservation of___

Charge

Energy

Momentum

Angular momentum

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Category: Introduction to Resistors

______ type of resistor in which the resistance changes rapidly with small change in temperature.

Photo Resistor

Thin film resistor

Rheostats

Thermistor

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Category: Bharat Skill Questions

What is the unit of current?

Ampere

Volts

Ohm’s

Ammeter

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Category: Introduction to Resistors

If there are 10 Volts across a 5 Ohm resistor, what is the current?

0.5 Amps

2 Amps

10 Amps

12 Amps

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Category: Introduction to Resistors

A PCB is used in____

Consumer electronics

Measuring and testing device

Storage device

All of these

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Category: Introduction to Resistors

Which type of substance is used in the base manufacturing of a Printed Circuit Board

Insulator

Conductor

Semi Conductor

None of the above

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Category: Bharat Skill Questions

What is the colour code of 100Ω resistor?

Brown, Black, Red

Black, Brown, Black

Brown, Black, Brown

Brown, Brown, Brown

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Category: Introduction to Resistors

What does the letter 'I' stand for in Ohm's Law?

Resistance

Voltage

Current

Power

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Category: Bharat Skill Questions

What is the name of instrument used to measure electrical quantities?

Vernier Caliper

Tester

Micrometer

Meter

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Category: Introduction to Resistors

With Ohm's law, if voltage increases and resistance stays the same:

current remains the same

current increases

resistance decreases

power decreases

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Category: Introduction to Resistors

KCL is applicable to only _______

Closed loops in a network

Electronic Circuits

Junctions in a Network

Electric Circuits

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Category: Bharat Skill Questions

What is the advantage of using digital millimeter?

Accuracy

Linear Scale

Easy Portability

Logarithmic Scale

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Category: Bharat Skill Questions

What we do in first action to be taken, in case of an electric shock?

Call To Doctor

Taken Support To Others

Switch Off The Electric Power

Call To Ambulance

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Category: Bharat Skill Questions

How to calculate total resistance in three connected in series?

R1+R2

1/R1+1/R1+1/R3

R1+R2+R3

1/R1+1/R2

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Category: Introduction to Resistors

Which is the most cost efficient connection?

Series

Parallel

Either series or parallel

Neither series nor parallel

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Category: Bharat Skill Questions

Which is used for continuity checking?

Ohm Meter

Ammeter

Volt Meter

Multi Meter

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Category: Introduction to Resistors

Kirchhoff's 2nd law is consequence of law of conservation of____

Energy

Charge

Power

Power

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Category: Introduction to Resistors

What is the nominal resistance of a resistor with color code brown-green-black-silver?

25 Ω

1500 Ω

150 Ω

15 Ω

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Category: Introduction to Resistors

The flux suitable for Copper is____

Zinc Chloride

Stearin

Both zinc Chloride and Stearin

Ammonium Chloride

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Category: Bharat Skill Questions

What is the full form of ABC in first aid?

Anyway, Breathing, Circulation

Airway, Breathing, Circulation

Anyway, Blood, Circulation

Airway, Blood, Chest

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Category: Introduction to Resistors

Identify the resistors in SERIES.

R2-R4

R2-R3

R3-R4

None of the above

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Category: Introduction to Resistors

Which of the following is generally used to made a voltage dependent resistor?

Silicon Carbide

Silicon

Carbon

phosphorus.

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Category: Introduction to Resistors

Restricting or reducing the flow of electric current to certain level is called___

Resistance

Inductance

Voltage

Power

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Category: Bharat Skill Questions

What is the name of the type of resistor?

Carbon Type Variable

Fixed Low Wattage Type

High Wattage Fixed Type

Wire Wound Type Variable

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Category: Bharat Skill Questions

Which factor influences the severity of electric shock?

Very Low Dc Voltage

Duration Of Current Passing

Level Of Current In Micro Ampere

Person Receives The Shock

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Category: Bharat Skill Questions

What is the use of resistor?

Current Increasing

Voltage Increasing

Voltage Drop

Power Increasing

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Category: Bharat Skill Questions

How many ohms is equal to one mega ohm?

10 KΩ

100 KΩ

1000 KΩ

2000 KΩ

34 / 62

Category: Introduction to Resistors

The melting range of solder is_____

96° C - 225° C

100° C - 225° C

110° C - 290° C

None of the above

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Category: Introduction to Resistors

In a _________ circuit, the total resistance is greater than the largest resistance in the circuit.

Series

Parallel

Either series or parallel

Neither series nor parallel

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Category: Bharat Skill Questions

Find the total resistance value of 10 ohm and 20 ohm connected in parallel.

6.666 Ohms

66.66 Ohms

666.6 Ohms

6666 Ohms

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Category: Bharat Skill Questions

Which instrument is used to measure the volt amp?

Watt Meter

Volt Meter

Ammeter

Ohm Meter

38 / 62

Category: Introduction to Resistors

What is the color code for a 560 kΩ resistor with 10% tolerance?

blue-green-orange-silver

green-blue-yellow-silver

blue-violet-yellow-silver

green-blue-orange-silver

39 / 62

Category: Introduction to Resistors

Voltage dependent Resistors are used as ___

Current stabilizers

Heating elements

Inductive circuits

Suppress charges

40 / 62

Category: Bharat Skill Questions

Which is the sign for risk of electric shock?

A

B

C

D

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Category: Introduction to Resistors

Two types of thermistors are___ and _______

PTC & NTC

PTP & NTP

PPP & NPP

None of the above

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Category: Introduction to Resistors

How is a 3.9 k resistor color-coded?

red, green, orange, silver

orange, white, red, gold

orange, green, orange, silver

red, white, red, gold

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Category: Bharat Skill Questions

Which component opposes any change in current?

Diode

Resistor

Inductor

Capacitor

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Category: Introduction to Resistors

In which side of the PCB the components are mounted?

Copper side

Solder side

Track Side

Component Side

45 / 62

Category: Introduction to Resistors

A light dependent resistors is basically a

Power resistor

Non Metallic resistors

Carbon Resistors

Variable resistor

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Category: Introduction to Resistors

________is a type of resistor in which metal wires are used to reduce the flow of electric current

Wire wound resistor

Thin film resistors

Carbon resistor

None of the above

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Category: Bharat Skill Questions

Which step is followed for treating a person from electric shock?

Provide Water

Keep The Victim Cold

Cover The Victim With A Coat

Move The Victim To A Ventilated Place

48 / 62

Category: Introduction to Resistors

_________is a type of resistor in which the resistance decreases when the intensity of applied light increases.

Photoresistor

Thermister

Thin Film resistor

None of the above

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Category: Introduction to Resistors

If you increase the size of the resistor and keep the voltage the same, what will happen to the current?

The current will decrease

The current will increase

The current will stay the same

None of the above

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Category: Bharat Skill Questions

What is current?

Flow Of Neutrons

Flow Of Electrons

Flow Of Protons

Flow Of Resistance

51 / 62

Category: Introduction to Resistors

Ohm's law is not:

V = IR

I = V/R

R = IV

R = V/I

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Category: Introduction to Resistors

What is the basic unit used to measure the resistance of a resistor?

Volt

Watt

Power

Ohm

53 / 62

Category: Introduction to Resistors

The tip used in PCB soldering is ___

Bevel

Pyramid

Conical

Chisel

54 / 62

Category: Bharat Skill Questions

Which is produced by ac generators?

Direct Current

Positive Current

Alternating Current

Negative Current

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Category: Bharat Skill Questions

Which meter is used to find the exact resistance value of resistor?

Ammeter

Volt Meter

Ohm Meter

Watt Meter

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Category: Introduction to Resistors

The melting range of solder is_____

96° C - 225° C

100° C - 225° C

110° C - 290° C

None of the above

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Category: Bharat Skill Questions

Which one is arm lift back pressure method?

Mouth-To-Mouth Method

Nose-To-Mouth Method

Nelson’s Method

Schafer’s Method

58 / 62

Category: Bharat Skill Questions

Which artificial respiration method to be avoided to a person with abdomen injury?

Schafer’s Method

Mouth-To –Mouth Method

Nose-To-Mouth Method

Mouth-To-Mouth Method

59 / 62

Category: Introduction to Resistors

In NTC thermistor on increasing temperature, the resistance

Increases

Decreases

First increases then decreases

None of the above

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Category: Introduction to Resistors

Solder wire is a special mixture of different metals in different rations. Which metals are used for making solder?

Lead and tin

Copper and Lead

Tin and Copper

Lead and Aluminium

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Category: Introduction to Resistors

According to KVL the algebraic sum of voltages around any closed path in a network is equal to ____________

Infinity

0

1

None of the above

62 / 62

Category: Introduction to Resistors

Rheostat is a _____ type of resistor.

variable resistors

Fixed Resistor

Protective resistor

None of the above

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