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RRB ALP & Technician Practice Test - 15

100 Questions MCQ Test RRB ALP & Technician Exam (Group C ) - Mock Tests | RRB ALP & Technician Practice Test - 15

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Attempt RRB ALP & Technician Practice Test - 15 | 100 questions in 80 minutes | Mock test for Railways preparation | Free important questions MCQ to study RRB ALP & Technician Exam (Group C ) - Mock Tests for Railways Exam | Download free PDF with solutions

QUESTION: 1

The information is sent by CW transmitter by

A.
Changing the audio frequency
B.
Interrupting radio signal
C.
Using microphone
D.
Using camera

Solution:

QUESTION: 2

Moisture can be removed from lubricating oil using .................

A.
Tubular centrifugal
B.
Clarifier
C.
Sparkler filter
D.
Vacuum leaf filter

Solution:

QUESTION: 3

The rank of the following matrix is

A.
0
B.
1
C.
2
D.
3

Solution:

QUESTION: 4

Germanium possesses

A.
Two valence electrons
B.
Three valence electrons
C.
Four valence electrons
D.
Five valence electrons

Solution:

QUESTION: 5

Share of export from India is the maximum to the following country

A.
U.S.A.
B.
U.K.
C.
U.A.E.
D.
Japan

Solution:

QUESTION: 6

Which of the following is not a property of difference amplifier?

A.
Capacitor is used in it
B.
It is used to compare two signals
C.
Difference amplifier yields more than the direct couple amplifier
D.
Frequency of difference amplifier remains flat from zero to high frequency

Solution:

QUESTION: 7

Where are the caves of Ajanta located?

A.
Orissa
B.
Kerala
C.
Maharashtra
D.
Madhya Pradesh

Solution:

QUESTION: 8

Calorie value is the least of the following materials

A.
Coal gas
B.
Producer gas
C.
Steam fiery gas
D.
Oil gas

Solution:

QUESTION: 9

The value of ∫x/cos²x is equal to which of the following?

A.
x tan x
B.
log cos x
C.
x tan x + log cos t
D.
x tan x - log cos x

Solution:

QUESTION: 10

The colonial system of the company was formalized by

A.
Battle of Plassey
B.
Battle of Buxar
C.
Battle of Panipat
D.
Battle of Wandiwash

Solution:

QUESTION: 11

Natural rubber is polymer of

A.
Isobutane
B.
Isoprene
C.
Propane
D.
Isopropene

Solution:

QUESTION: 12

For generating large currents on D.C. generators which winding is generally preferred?

A.
Progressive wave winding
B.
Lap winding
C.
Retrogressive wave winding
D.
Current depends on design

Solution:

QUESTION: 13

A.C. servomotor is basically a/ an .....

A.
Universal motor
B.
Single phase induction motor
C.
Two phase induction motor
D.
Three phase induction motor

Solution:

QUESTION: 14

co-efficient of velocity as compared to the coefficient of discharge is

A.
Less
B.
More
C.
Equal
D.
Less or more depending on flow

Solution:

QUESTION: 15

The capacitance, in force-current analogy, is analogous to

A.
Momentum
B.
Velocity
C.
Displacement
D.
Mass

Solution:

QUESTION: 16

.... signal will become zero when the feedback signal and reference signs are equal.

A.
Input
B.
Actuating
C.
Feedback
D.
Reference

Solution:

QUESTION: 17

Most of the weather phenomena take place in the

A.
Stratosphere
B.
Troposphere
C.
Tropopause
D.
Ionosphere

Solution:

QUESTION: 18

Motor-generator set for D.C. are welding has generator of

A.
Series type
B.
Shunt type
C.
Differentially compound type
D.
Level compound type

Solution:

QUESTION: 19

Which of the following motors is preferred when quick speed reversal is the main consideration?

A.
Squirrel cage induction motor
B.
Wound rotor induction motor
C.
Synchronous motor
D.
D.C.motor

Solution:

QUESTION: 20

In case of ball bearings, which part is made harder than others

A.
Ball
B.
Outer-race
C.
Inner race
D.
All are made equally hard

Solution:

QUESTION: 21

Selectivity of the receiver can be increased by which of the following?

A.
By using more tuned circuit
B.
By decreasing number of tuned circuit
C.
By using loudspeaker
D.
By increasing gain of the receiver

Solution:

QUESTION: 22

An electronics circuits in which different components such as Diode, Resistor and Capacitor etc. are connected separately is called

A.
Chassis
B.
Printed board
C.
Integrated circuit
D.
Discrete circuit

Solution:

QUESTION: 23

Indicated power of a 4-stroke engine is equal to

A.
pLAN
B.
2pLAN
C.
pLAN/2
D.
4pLAN

Solution:

QUESTION: 24

What are Ferrites?

A.
Magnetic but have low resistance
B.
Magnetic but have high resistance
C.
Non-magnetic with low resistance
D.
Non-magnetic with high resistance

Solution:

QUESTION: 25

The translator program that converts source code in high level language into machine code line by line is called

A.
Assembler
B.
Compiler
C.
Loader
D.
Interpreter

Solution:

QUESTION: 26

National Library, the largest in India is located at

A.
Chennai
B.
Mumbai
C.
Delhi
D.
Kolkata

Solution:

QUESTION: 27

Pak Strait joins which of the following two countries

A.
India-Pakistan
B.
India-Myanmar
C.
India-Sri lanka
D.
None of these

Solution:

QUESTION: 28

Who had appointed the first Prime Minister of India?

A.
Lord Mountbatten
B.
C.Rajagopalachari
C.
President of India
D.
None of these

Solution:

QUESTION: 29

Who had demarcated the border-line between India and Pakistan?

A.
McMohan
B.
Lord Durand
C.
Radcliffe
D.
None of these

Solution:

QUESTION: 30

Approximate thermal efficiency of petrol engine is

A.
20%
B.
30%
C.
50%
D.
75%

Solution:

QUESTION: 31

Which of the following is the universal gate?

A.
NAND-Gate
B.
OR-Gate
C.
AND-Gate
D.
NOT-Gate

Solution:

QUESTION: 32

How will a red flower appear, if it is seen through a green glass?

A.
Red
B.
Brown
C.
White
D.
Green

Solution:

QUESTION: 33

What is the unit of electrical energy?

A.
Ampere
B.
volt
C.
Watt
D.
Kilowatt-hour

Solution:

QUESTION: 34

A diode .....

A.
Functions only in one direction
B.
Functions in both the directions
C.
Does not function at all
D.
It gets damaged, when voltage is applied

Solution:

QUESTION: 35

What is the frequency of the receiver?

A.
488 kHz
B.
445 kHz
C.
455 kHz
D.
456 kHz

Solution:

QUESTION: 36

When were the Indian States organised on the basis of language?

A.
1947
B.
1950
C.
1956
D.
1952

Solution:

QUESTION: 37

What would be the expenditure in 30 days at the rate of 50 paise per unit, if a bulb of 100 W is used five hours per day?

A.
Rs.10.50
B.
Rs.8.50
C.
Rs.7.50
D.
Rs.9.50

Solution:

QUESTION: 38

Lever functions on which of the following principles?

A.
Crank-shaft
B.
Joining rod
C.
Crank pin
D.
Cross head

Solution:

QUESTION: 39

Protein is not available in which of the following?

A.
Meat
B.
Milk
C.
Rice
D.
Pulse

Solution:

QUESTION: 40

In steam turbine the action of steam is

A.
Stable
B.
Dynamic
C.
Stable and dynamic
D.
Neither stable nor dynamic

Solution:

QUESTION: 41

Among the following statement which is the false?

A.
Only minority impurities are added in a junction diode
B.
Higher temperature increases the leakage current of diode
C.
A simple zener diode works when connected between anode to cathode
D.
Zener is mostly used in voltage regulator

Solution:

QUESTION: 42

In resistance heating, highest working temperature is obtained from heating elements made of ....

A.
Nickel and copper
B.
Nichrome
C.
Silicon carbide
D.
Silver

Solution:

QUESTION: 43

In higher pair, the relative motion is

A.
Purely turning
B.
Purely sliding
C.
Purely rotary
D.
Combination of sliding and turning

Solution:

QUESTION: 44

The least populated Stae in India is

A.
Goa
B.
Sikkim
C.
Manipur
D.
Arunachal Pradesh

Solution:

QUESTION: 45

In case of gas turbines, the gaseous fuel consumption guarantees are based on

A.
High heat value
B.
Low heat value
C.
Net calorific value
D.
Middle heat value

Solution:

QUESTION: 46

In a resistive load, power dissipation would be proportional to

A.
Current
B.
1/Current
C.
Current²
D.
1/Current²

Solution:

QUESTION: 47

An automatic toaster is a ..... loop control system.

A.
Open
B.
Closed
C.
Partially closed
D.
None of the above

Solution:

QUESTION: 48

A transistor draws a base current of 100 micro ampere when the collector current is 10 milli ampere, what is value of its 'α'?

A.
101/100
B.
100/101
C.
1000/10001
D.
10/11

Solution:

QUESTION: 49

Who of the following was not the acting President of India?

A.
V.V.Giri
B.
B.D.Jatti
C.
Hidayatullah
D.
Zakir Hussain

Solution:

QUESTION: 50

The northern most limit of India is

A.
36°4' N latitude
B.
37°8' N latitude
C.
37°6' N latitude
D.
36°12' N latitude

Solution:

QUESTION: 51

When the load is above ............, a synchronous motor is found to be more economical.

A.
2 kW
B.
20 kW
C.
50 kW
D.
100 kW

Solution:

QUESTION: 52

The first summit of NAM was held at

A.
Cairo
B.
Lusaka
C.
Belgrade
D.
New Delhi

Solution:

QUESTION: 53

To convert moving coil galvanometer into an ammeter, which of the following methods is used?

A.
Small resistance in series
B.
Small resistance in parallel
C.
High resistance in series
D.
High resistance in parallel

Solution:

QUESTION: 54

Following figure shows the curves of efficiency versus compression ratio for various cycles in I.C.engines. For constant volume cycle, the curve applicable is

A.
A
B.
B
C.
C
D.
D

Solution:

QUESTION: 55

The minimum value of the function y = x⁵ - 4x⁴ + 5x³ - 1 will occur when the value of x is equal to

A.
0
B.
1
C.
2
D.
3

Solution:

QUESTION: 56

Which one of the natural regions is known as the 'Bread Basket' of the world?

A.
The steppe region
B.
The mediterranean region
C.
The monsoon region
D.
The equatorial region

Solution:

QUESTION: 57

When input signal in transistor amplifier is applied between base and emitter and out put is taken from emitter and collector, then what the configuration is called?

A.
Common emitter
B.
Common base
C.
Common collector
D.
None of these

Solution:

QUESTION: 58

Which of the following can be used to control the speed of a D.C. motor?

A.
Thermistor
B.
Thyristor
C.
Thyratron
D.
Transistor

Solution:

QUESTION: 59

The transient response of a system is mainly due to

A.
Inertia forces
B.
Internal forces
C.
Stored energy
D.
Friction

Solution:

QUESTION: 60

Minority carrier in P-type semi-conductor are

A.
Free electrons
B.
Free holes
C.
Holes and electrons both
D.
Holes minus electrons

Solution:

QUESTION: 61

Pulley in a belt drive acts as

A.
Cylindrical pair
B.
Turning pair
C.
Rolling pair
D.
Sliding pair

Solution:

QUESTION: 62

D.C. shunt relays are made of

A.
Few turns of thin wire
B.
Few turns of thick wire
C.
Many turns of thin wire
D.
Many turns of thick wire

Solution:

QUESTION: 63

The movement that came to an abrupt end due to the Chauri-chaura incident was the

A.
Wahabi Movement
B.
Home rule movement
C.
Non-cooperation movement
D.
Civil disobedience movement

Solution:

QUESTION: 64

While checked with a multimeter, an open resistor reads

A.
Zero
B.
Infinite
C.
High but within toleance
D.
Low but not zero

Solution:

QUESTION: 65

In amplitude modulation

A.
Amplitude of the carrier is kept constant
B.
Change occurs in carrier frequency
C.
Amplitude is varied according to the instantaneous value of modulating wave
D.
None of these

Solution:

QUESTION: 66

Oscillator operates on sub-harmonic frequency because

A.
Lower frequency gives better stability
B.
It gives linear out put
C.
Less stages are used
D.
More stages are used

Solution:

QUESTION: 67

Hopkinson's test on D.C. machines is conducted at

A.
No-load
B.
part load
C.
Full-load
D.
Over load

Solution:

QUESTION: 68

Emitter follower is also called as

A.
Common emitter
B.
Common base
C.
Common collector
D.
SCR

Solution:

QUESTION: 69

The example of lower pair is

A.
Shaft revolving in a bearing
B.
Straight line motion mechanisms
C.
Automobile steering gear
D.
All of the above

Solution:

QUESTION: 70

Which is true statement among the following?

A.
Main function of the detector is to suppress the image signal
B.
Noise is very low in crystal detector
C.
Super-regenerative is less sensitive
D.
Diode detector is more sensitive

Solution:

QUESTION: 71

The first governor-General of India under East India Company was

A.
Cornwallis
B.
Wellesley
C.
Warren Hastings
D.
Sir John Shore

Solution:

QUESTION: 72

The expression ∫ p dV can be used for obtaining work of

A.
Non-flow reversible process
B.
Steady flow reversible process
C.
Adiabatic irreversible process
D.
Throttling process

Solution:

QUESTION: 73

In connection with oscillator, which is FALSE statement?

A.
Oscillator converts d.c. into a.c.
B.
Oscillator is that amplifier which provides its own input
C.
All types of oscillator produce sine wave
D.
In phase, feedback used in oscillator is also called positive feedback.

Solution:

QUESTION: 74

The index of compression n tends to reach ratio of specific heats γ when

A.
flow is uniform and steady
B.
process is isentropic
C.
process is isothermal
D.
process is isentropic and specific heat does not change with temperature

Solution:

QUESTION: 75

Who of the following attended all the three Round Table Conferences?

A.
B.R. Ambedkar
B.
M.M.Malaviya
C.
Vallabhbhai Patel
D.
None of the above

Solution:

QUESTION: 76

For which of the following substances, the internal energy and enthalpy are the functions of temperature only

A.
Any gas
B.
Saturated steam
C.
Water
D.
Perfect gas

Solution:

QUESTION: 77

Frequency multiplier stage of the transmitter operates under

A.
Class C
B.
Class A
C.
Class AB
D.
Class B

Solution:

QUESTION: 78

Which of the following is used in the blast furnace as flux?

A.
Fluorspar
B.
Quartzite
C.
Limestone
D.
Ferro-manganese

Solution:

QUESTION: 79

An air vessel is usually provided at the summit of a syphon in order to

A.
Regulate the flow
B.
Increase discharge
C.
Avoid interruption in flow
D.
Increase velocity

Solution:

QUESTION: 80

An exciter for a turbo generator is a

A.
Separately excited generator
B.
Shunt generator
C.
Series generator
D.
Compound generator

Solution:

QUESTION: 81

Which of the following instruments is most accurate?

A.
Vertical caliper
B.
Manometric screw gauge
C.
Optical projector
D.
Mechanical comparator

Solution:

QUESTION: 82

An air vessel is usually provided at the summit of a syphon in order to

A.
Regulate the flow
B.
Increase discharge
C.
Avoid interruption in flow
D.
Increase velocity

Solution:

QUESTION: 83

A.
1
B.
-1
C.
Zero
D.
Infinity

Solution:

QUESTION: 84

Two generators A and B have 6-poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. in generator A and B will be .....

A.
2 : 3
B.
3 : 1
C.
3 : 2
D.
1 : 3

Solution:

QUESTION: 85

A frame-structure is nice if the number of its constituents is equal to .....

A.
2n-3
B.
n-1
C.
2n-1
D.
n-2

Solution:

QUESTION: 86

The maximum efficiency of full wave rectifier Is?

A.
40.1%
B.
31.2%
C.
90%
D.
93%

Solution:

QUESTION: 87

R.C. Coupling is used for amplification of the?

A.
Current
B.
Resistance
C.
Power
D.
Voltage

Solution:

QUESTION: 88

If four resistance valve of every resistance is "R" ohm in parallel connection then the total resistance Is?

A.
4R
B.
2R
C.
R
D.
R/4

Solution:

QUESTION: 89

Which of the following Is needed while marking on round job?

A.
Bolt
B.
Block
C.
V-Block
D.
H-clamp

Solution:

QUESTION: 90

The mixture of solder wire is?

A.
Tin
B.
Zinc
C.
Lead
D.
None

Solution:

QUESTION: 91

Rs.900 are distributed among A, 6 & C in the ratio 4: S: 6 what will be the difference of the shares of A and C?

A.
Rs. 25
B.
Rs. 120
C.
Rs. 130
D.
Rs. 150

Solution:

QUESTION: 92

Rs.900 are distributed among A, 6 & C in the ratio 4: S: 6 what will be the difference of the shares of A and C?

A.
RS .25
B.
Rs. 120
C.
Rs. 130
D.
Rs. 150

Solution:

QUESTION: 93

A cistern is filled in 9 hrs and it takes 10 hrs when there is a leak in itsbottom. If the cistern Is full, time to empty?

A.
50 hrs
B.
35 hrs
C.
90 hrs
D.
95 hrs

Solution:

QUESTION: 94

The father is seven times older than his son. After 4 years, the sum of their ages would be 50 yrs, The Son's present age?

A.
7 yrs
B.
8 yrs
C.
5yrs
D.
9yrs

Solution:

QUESTION: 95

The S.I unit of Resistance is?

A.
Joule
B.
Ohm
C.
Watt
D.
Ampere

Solution:

QUESTION: 96

When an iron nail gets rusted weight?

A.
Increases
B.
Decreases
C.
No change
D.
None

Solution:

QUESTION: 97

Who among the following "First law officer" of the Government of India?

A.
Solicitor General
B.
Attorney General
C.
Chief Justice
D.
CAG

Solution:

QUESTION: 98

"The Leaning tower of Pisa" is situated in?

A.
France
B.
England
C.
Egypt
D.
Italy

Solution:

QUESTION: 99

Complete the series 45, 54, 47,_____ , 49, 56, 51, 57, 53?

A.
55
B.
48
C.
50
D.
None

Solution:

QUESTION: 100

The Indian valley Civilization was primarily?

A.
Tribal
B.
Urban
C.
Rural
D.
Local

Solution:

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RRB ALP & Technician Practice Test - 15

100 Questions MCQ Test RRB ALP & Technician Exam (Group C ) - Mock Tests | RRB ALP & Technician Practice Test - 15

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Moisture can be removed from lubricating oil using .................

The rank of the following matrix is

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