MES Departmental • Engineering Paper-II
The main components of gas turbine plant are as below, except
A)
Compressor
B)
Combustion chamber
C)
Condenser
D)
Turbine
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Combustion chamber' (Option B).
MES Departmental • Paper-II
When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, what is the secondary voltage?
A)
12 V
B)
120 V
C)
240 V
D)
2,400 V
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '240 V' (Option C).
MES Departmental • Paper-II
Materials with lots of free electrons are called
A)
conductors
B)
insulators
C)
semiconductors
D)
filters
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'conductors' (Option A).
MES Departmental • Paper-II
A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?
A)
20.16 kWh
B)
201.6 kWh
C)
2.01 kWh
D)
8.4 kWh
Based on established principles in the relevant subject area, the correct and most appropriate choice is '20.16 kWh' (Option A).
MES Departmental • Paper-II
Which of the following gates has the exact inverse output of the OR gate for all possible input combinations?
A)
NOR
B)
NOT
C)
NAND
D)
AND
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'NOT' (Option B).
MES Departmental • Paper-II
In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is
A)
one-fourth the primary current
B)
four times the primary current
C)
equal to the primary current
D)
one-fourth the primary current and equal to the primary current
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'equal to the primary current' (Option C).
MES Departmental • Paper-II
In a three-phase system, the voltages are separated by
A)
45°
B)
90°
C)
120°
D)
180°
Based on established principles in the relevant subject area, the correct and most appropriate choice is '120°' (Option C).
MES Departmental • Paper-II
An ammeter is an electrical instrument used to measure
A)
current
B)
voltage
C)
resistance
D)
none of these
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'resistance' (Option C).
MES Departmental • Paper-II
A transformer is used to
A)
change ac to dc
B)
change dc to ac
C)
step up or down dc voltages
D)
step up or down ac voltages
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'change ac to dc' (Option A).
MES Departmental • Paper-II
What are the symbols used to represent digits in the binary number system?
A)
0,1
B)
0,1,2
C)
0 through 8
D)
1,2
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '0 through 8' (Option C).
MES Departmental • Paper-II
The unit of electrical charge is
A)
coulomb
B)
joule
C)
volt
D)
watt
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'coulomb' (Option A).
MES Departmental • Paper-II
What kind of logic device or circuit is used to store information?
A)
Counter
B)
Register
C)
Inverter
D)
Buffer
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Inverter' (Option C).
MES Departmental • Paper-II
When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
A)
increases
B)
decreases
C)
remains the same
D)
doubles
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'increases' (Option A).
MES Departmental • Paper-II
A given power supply is capable of providing 6 Ampere for 3.5 hrs. Its ampere-hour rating is
A)
0.58 Ah
B)
2.1 Ah
C)
21 Ah
D)
58 Ah
Based on established principles in the relevant subject area, the correct and most appropriate choice is '0.58 Ah' (Option A).
MES Departmental • Paper-II
When the frequency is decreased, the impedance of a parallel RL circuit
A)
increases
B)
decreases
C)
remains constant
D)
is not a factor
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'is not a factor' (Option D).
MES Departmental • Paper-II
In a three-phase system, when the loads are perfectly balanced, the neutral current is
A)
zero
B)
one-third of maximum
C)
two-thirds of maximum
D)
at maximum
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'two-thirds of maximum' (Option C).
MES Departmental • Paper-II
With regard to an AND gate, which statement is true?
A)
An AND gate has two inputs and one output.
B)
An AND gate has two or more inputs and two outputs.
C)
If one input to a 2-input AND gate is HIGH, the output reflects the other input.
D)
A 2-input AND gate has eight input possibilities.
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'An AND gate has two inputs and one output.' (Option A).
MES Departmental • Paper-II
A single-phase sinusoidal voltage of 120 V is connected to a 90W load. Current in the circuit is
A)
13.3 mA
B)
133 mA
C)
1.33 A
D)
6.2 A
Based on established principles in the relevant subject area, the correct and most appropriate choice is '13.3 mA' (Option A).
MES Departmental • Paper-II
An ohmmeter is an instrument for measuring
A)
current
B)
voltage
C)
resistance
D)
wattage
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'resistance' (Option C).
MES Departmental • Paper-II
Long transmission lines may be classified as
A)
line length 100km and voltage range upto 50kV
B)
line length 120km and voltage range upto 100kV
C)
line length 120km and voltage range above 100kV
D)
line length above 150km and voltage range above 100kV
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'line length 100km and voltage range upto 50kV' (Option A).
MES Departmental • Paper-II
When two resistances are connected in parallel
A)
the current through each must be the same.
B)
the voltage across each must be the same.
C)
their combined resistance value equals the sum of the individual values.
D)
each must have the same resistance value
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'their combined resistance value equals the sum of the individual values.' (Option C).
MES Departmental • Paper-II
When converting a star resistive network to an equivalent delta network, if all the three resistors are equal in value, then the value of the resultant resistors in the equivalent delta network will be
A)
same as that of star resistors
B)
2 times the value of the star resistors
C)
3 times the value of the star resistors
D)
4 times the value of the star resistors
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '2 times the value of the star resistors' (Option B).
MES Departmental • Paper-II
Corona results in
A)
improvement in power factor
B)
increased capacitive reactance of transmission lines
C)
radio interference
D)
better regulation
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'increased capacitive reactance of transmission lines' (Option B).
MES Departmental • Paper-II
The rectifier which requires minimum amount of filtering is
A)
Half wave rectifier
B)
Full wave rectifier
C)
Voltage double circuit
D)
SCR half wave rectifier
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'SCR half wave rectifier' (Option D).
MES Departmental • Paper-II
The circuit shown is
A)
integrator
B)
low pass filter
C)
high pass filter
D)
band pass filter
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'integrator' (Option A).
