Selam arkadaşlar, Çağların yazdığı soruları ayıkladım.Bu soruları daha önce hiçbir yerde görmedim.Bunlar daha önce çıkan online sorularmı? bilen varmı?Yoksa bunlar kursların hazırlamış olduğu hazırlık sorularımı?
51. What statement is not true regarding the function of steam turbine
A)Steam turbine extracts mechanical work from the energy stored in steam
B)Steam turbine generates electrical energy
C)Sometimes steam turbine is connected to a reduction gear
D)Steam turbine is used as cargo pump drive source
E)Steam turbine produces steam for steam engine
52. The burning of fuel and air mixture in the cylinder is called as:
A)Propulsion
B)Combustion
C)Expansion
D)Compression
E)Conversion
53. “Gas will expand when heat is applied” What statement below has the same meaning with this law of phsycs
A)Gas expands unless heat is applied
B)When gas expand, its temperature decreases
C)Whenever gas is heated, it expands
D)Gas expands, otherwise heat is applied
E)If we expand the gas, it will heat
54. “When a gas is compressed, the temperature of the gas will increase” What word can be used instead of underlined word without changing meaning
A)Decrease
B)Raise
C)Reduce
D)Expand
E)Exceed
71. In a gas turbine , the pressure of air is changed
At the inlet
In the combustion chamber
Through the compressor
During the combustion
Through the inlet of turbine
72. What factor is not primarily taken into account by a ship owner when choosing an engine
Cost
Propulsive efficiency
Size and weight
Maintenance work load
Installation time
73. The term ........indicates the piston motion in the cylinder
Cycle
Sequence
Combustion
Stroke
Ignition
74. The sequence of events that take place in the cylinder of an engine is indicated by the term:
Cycle
Stroke
Power
Compression
Combustion
75. “Piston moves upward to almost top of the cylinder, both intake and exhaust valves are closed. The air compressed above the piston” describes the .......... stroke
Compression
Power
Intake
Exhaust
Ignition
76. What statement is not true regarding power stroke?
The air pressure is very high
The compressed air temperature is below the ignition point of the fuel
The heated air ignites the fuel
The intake and exhaust valves are closed
Power stroke comes after compression stroke
77. “The piston is forcing the exhaust gas out of the cylinder by moving downward” What word must be changed to get the true meaning
Piston
Exhaust
Gas
Cylinder
Downword
78. What statement is not true regarding two-stroke engines?
Two stroke engines are uniflow and cross flow types
Two stroke engines have ports on liner
Crankshaft completes two revolutions in a two stroke cycle
Compression and power strokes are two strokes comprising the cycle
Two-stroke engines may be fitted with crossheads
79. In “Sulzer 7RLB 66”; 66 indicates ........
The number of cylinder
The diameter of cylinders
The year that engine manufactured
Revolution per minute
Model
80. .......is not stationary part of a diesel engine
Crankcase
Crosshead
Bedplate
Cylinder
Liner
81. Bedplate is seated on the ..........
Cylinder block
Crankcase
Engine frame
Girders
Foundation
82. What statement is not true regarding crankcase?
It is below the cylinder
It consist of upper and lower sections
It provides a sump for fuel oil
It encloses the crankshaft
Manholes on it allow access for maintenance
83. Cylinder head on a four-stroke engine contains.......
Air starting valve
Inlet valve
Exhaust valve
Fuel injector
All
84. What statement is not true regarding bedplate?
Bedplate supports the engine
It consists of cross and longitudinal girders
It is seated on the foundation
It must withstand the fluctiating forces during operation
It encloses the main bearing
85. The cooling medium for cylinder cooling circulates through
Jacket
Main bearings
Crankcase
Sump
Shafting
86. Which of the following parts is not a running part?
Piston
Crosshead
Cylinder
Exhaust valve
Camshaft
87. What part is exposed to the combustion directly
Piston crown
Piston skirt
Piston rod
Piston rings
Piston pin
88. Piston is connected to connecting rod by:
Piston rod
Piston head
Piston pin
Piston skirt
Crosshead guide
89. The grooves on the piston are for:
Piston pin
Piston rod
Piston crown
Crosshead slippers
Piston rings
90. What has a direct contact with piston rings?
Liner
Camshaft
Crosshead
Crankshaft
Jacket
91. What statement is true about pistons?
Piston is generally cooledwith seawater
Piston moves axially
Piston is connected to the connecting rod by piston pin
Piston is only made of steel
Diesel engines use only trunk type pistons
92. What statement is not true regarding camshaft?
Camshaft is used to operate the fuel pump and exhaust valve
b. It rorates at the same speed with the crankshaft on four stroke engines
Camshaft is driven by crankshaft with the gear gear drive or chain drive
Camshaft has cams
The camshaft is driven by a cam gear
93. In two stroke crosshead engine, the piston is connected to the crosshead by:
Crosshead slipper
Piston rod
Piston pin
Cam journal
Piston crown
94. ........is not a cooling system.
Piston cooling
Crankcase cooling
Lube oil cooling
Charge oil cooling
Pitch propeller cooling
95. The purpose of cylinder cooling is:
Maintaining the engine temperature at a certain level of operation
Retaining the piston temperature at constant speed
Making liner more slippery
Treating the fresh water before starting the engine
Reducing the crankshaft revolution speed
96. Receiving fuel on board the vessel is called as:
Storage
Seperation
Bunkering
Transfer
Service
97. Fuel transfer pumps are of:
Centrifugal type
Gear type
Positive dispalcement type
Axial flow type
Screw type
98. Fuel main is located:
On the bunkering station
On the storage tank
On the service tank
In the engine room
Underneath the cargo spaces
99. What parts are not lubricated on four stroke cycle engines?
Main bearings
Crank pins
Piston pins
Crosshead guides
Liners
100. The lubricating oil temperature is controlled with a:
Thermostatic valve
Viscosity regulator
Heater
Cooler
Strainer
101. The lubricating oil is stored in the ........located at the bottom of crankcase
Sump
Expansion tank
Drain tank
Lubricator
Steam heating coil
102. What is not a part of propulsion system
Propeller
Shafting
Main thrust block
Reduction Gear
Rudder
103. “Hub, blade, pitch”. The terms are related to:
Shafting
Rudder
Thrust block
Propeller
Sterntube
104. “Each blade is set into the boss and connected to the crosshead.” What word cannot be used instead of the underlined word?
Linked
Attached
United
Slipped
Joined
105.Performance of a turbocharged engine can be improved by:
Decreasing valve over lap
Preheating
Aftercooling intake air
Preheating light fuels
Heating intake air
106. The drains from both effects in a low pressure evaporator have their pressures equalized in the:
Equalizer tank
Drain tank
Flash chamber
Air ejector condense
Fuel oil tank
128. A scotch marine boiler does not have:
Furnace
Manhole
Smoke tubes
Burner
Drums
129. What statement is not true regarding tubes of a fire tube boiler
All the tubes are made of heat-resistant metal
All the tubes are surrounded by water
All the tubes immersed in water
All the tubes are mounted vertically
The hot gases pass through these tubes
135. Non-condensable gases are removed from the condenser by:
Air heater
Air ejector
Desuperheater
Attemperator
Deaerator
136. The function of a deaerator is :
Acting as a storage tank to keep water level
Keeping a constant pressure on the feed system
Keeping water free of air
Acting as a contact feed heater
all
137. What statement is not true ?
Soot blower keeps clear of combustion residues
De-aerator keeps water free of air
Air ejector removes non-condensable gases from economizer
Superheater removes the moisture from steam.
Attemperator reduces the temperature of superheated steam
138. “Raw water is not pure enough to use in boiler” What word can be exactly used instead of underlined word?
Treated
Untreated
Dilute
Dissolved
Salt
139. The dissolved salts in feedwater may cause:
Reduction in heat transfer by scale formation
Hardness
Caustic cracking
Tube failure from overheating
all
140. Caustic cracking is the result of:
Foaming
Priming
Excess of alkaline salts
Suspension
Leakage
141. pH Value is achieved by adding:
Hydrazine
Coagulant
Sulphure
Chloride
Magnesium
142. Corrosion within boiler is prevented by:
Polymer treatment
Adding anti-foam
Deaeration
Amine treatement
Adding coagulants
143. Scale and sludge formation is prevented by:
Neutralizing amines
Filming amines
Polymer treatment
Keeping pH value
Deaeration of the boiler by hydrazine
144. “The dissolved gases adhere to the heating surfaces” What word can be exactly used instead of underlined word?
Corrode
Stick
Contaminate
Crack
Suspend
232. ...... Are not self-priming pumps
Screw pumps
Reciprocating pumps
Gear pumps
Centrifugal pumps
Rotary positive displacement pumps
233. Any device used to regulate or stop the flow of liquid in a piping system is:
Pump
Valve
Ejector
Separator
Heat exchanger
234. .......is not a valve type?
Relief valve
Stop valve
Throttling valve
Check valve
Return valve
235. Metal made by combining two or more methalic elements is:
Monel
Alloy
Cast
Forged
Malleable
236. Which of the following valve types is not a stop valve?
a. Ball valve
b. Globe valve
c. Relief valve
d. Butterfly valve
e. Gate valve
237. What statement is not true regarding butterfly valves?
Butterfly valves are stop valves
Butterfly valves are small, quick-acting valves
Butterfly valves can be used for throttling
Butterfly valves can be uesd in water systems and lube systems
A spherical disc is used open and close the valve
238. To control the supply of expandable fluids such as compressed air, steam, a .....is used
Cock
Stop valve
Throttling valve
Relief valve
Drain valve
239. To discharge excess pressure in a piping system, a .....used
Ball valve
Stop valve
Relief valve
Throttle valve
Check valve
240. What associate is not true?
Air conditioning-cold room
Oil seperation – clarifier
Pump – positive displacement pump
Valve – non-return valve
Fresh water generation - evaporator
241.Marine electrical equipment are:
Generators
Motors,
Batteries,
Switchboards,
all
242. The machine that generates electrical energy is:
Generator,
Electric motor,
Battery,
Transformer,
rectifier
243. The machine that converts the electrical energy into mechanical energy is a:
Generator,
Motor,
Armature,
Transformer,
stator
244. Which of the following parts is not of a generator?
Rotor,
Stator,
Flywheel,
Winding,
Armature
245. What part of generator is not rotating?
Rotor,
Armature,
Rotorshaft,
Slip rings,
stator
246. The parts of generator that connect the high output voltage to the external circuit are:
Coils,
Rotors,
Slip rings and brushes,
Stators,
Armatures
247. What cools the generator by dissipating heat in the generator frame?
Rotor assembly,
Stator assembly,
Brushes,
Fan assembly,
Coils of wire
248. Which of the following devices are loads?
Alternator,
Wires,
Distribution panel,
Motor,
Coil
249. What is a part of marine electrical distribution?
DC motors,
Shaft generators,
Alternator,
Emergency switchboard,
AC motors
250. What statement is not true regarding switchboards?
Switchboards distribute electric power,
There are feeders that extend from switchboard to the distribution panels,
Switchboards are divided into sections by busbar isolators,
Switchboards receive power directly from transformer,
Switchboards are connected to the panels and circuits
251. What is used to seperate operating electrical equipment from the rest of the electric system
Busbars,
Emergency switchboard
Batteries,
Branch circuits,
Circuit breakers and fuses
252. Voltage generated by an alternator is reduced by:
Fuse,
Circuit breaker,
Batteries,
Flywheel,
Transformer
253. The voltage generated by an alternator is:
110 V.,
440 V,
220 V,
680 V,
120 V.
254. What statement is true regarding DC motors?
DC motors are more common than AC motor,
DC motors are easy to maintain,
DC motors are less expensive than AC motors,
DC motors have the constant speed characteristic,
DC motors run on the principles of attraction and repulsion of magnetism
255. What statement is not true regarding AC motors?
AC motors consist of two main assemblies : rotor and stator,
Rotors in an AC motor are turned by magnetic field,
The rotating field in an AC motor induces electromotor force,
AC motors operate on direct current,
Single-phase AC motors are also called squirrel cage motors
256. What can be a source of electric power?
An electric motor,
A fuse,
A battery,
A control panel,
A rotor.
257.“electrolite, anode, electrode”.The terms are related to a:
Cell,
Fuse,
Coil,
Pole,
Stator
258. What is the solution that reacts with the electrodes?
Battery,
Electrolyte,
Cell,
Anode,
Lead.
259. A lead-acid battery of 6 cells can give the voltage of;
2,2 V,
7 V,
12 V,
1,4 V,
6 V.
260. What statement is not true regarding electrolyte?
The electrolyte reacts with the electrodes
The electrolyte provides a path for electron flow,
It may be a salt, an acid, or an alcaline solution,
Electrolytes are non-conducting materials,
It can be a liquid or dry substance
51. What statement is not true regarding the function of steam turbine
A)Steam turbine extracts mechanical work from the energy stored in steam
B)Steam turbine generates electrical energy
C)Sometimes steam turbine is connected to a reduction gear
D)Steam turbine is used as cargo pump drive source
E)Steam turbine produces steam for steam engine
52. The burning of fuel and air mixture in the cylinder is called as:
A)Propulsion
B)Combustion
C)Expansion
D)Compression
E)Conversion
53. “Gas will expand when heat is applied” What statement below has the same meaning with this law of phsycs
A)Gas expands unless heat is applied
B)When gas expand, its temperature decreases
C)Whenever gas is heated, it expands
D)Gas expands, otherwise heat is applied
E)If we expand the gas, it will heat
54. “When a gas is compressed, the temperature of the gas will increase” What word can be used instead of underlined word without changing meaning
A)Decrease
B)Raise
C)Reduce
D)Expand
E)Exceed
71. In a gas turbine , the pressure of air is changed
At the inlet
In the combustion chamber
Through the compressor
During the combustion
Through the inlet of turbine
72. What factor is not primarily taken into account by a ship owner when choosing an engine
Cost
Propulsive efficiency
Size and weight
Maintenance work load
Installation time
73. The term ........indicates the piston motion in the cylinder
Cycle
Sequence
Combustion
Stroke
Ignition
74. The sequence of events that take place in the cylinder of an engine is indicated by the term:
Cycle
Stroke
Power
Compression
Combustion
75. “Piston moves upward to almost top of the cylinder, both intake and exhaust valves are closed. The air compressed above the piston” describes the .......... stroke
Compression
Power
Intake
Exhaust
Ignition
76. What statement is not true regarding power stroke?
The air pressure is very high
The compressed air temperature is below the ignition point of the fuel
The heated air ignites the fuel
The intake and exhaust valves are closed
Power stroke comes after compression stroke
77. “The piston is forcing the exhaust gas out of the cylinder by moving downward” What word must be changed to get the true meaning
Piston
Exhaust
Gas
Cylinder
Downword
78. What statement is not true regarding two-stroke engines?
Two stroke engines are uniflow and cross flow types
Two stroke engines have ports on liner
Crankshaft completes two revolutions in a two stroke cycle
Compression and power strokes are two strokes comprising the cycle
Two-stroke engines may be fitted with crossheads
79. In “Sulzer 7RLB 66”; 66 indicates ........
The number of cylinder
The diameter of cylinders
The year that engine manufactured
Revolution per minute
Model
80. .......is not stationary part of a diesel engine
Crankcase
Crosshead
Bedplate
Cylinder
Liner
81. Bedplate is seated on the ..........
Cylinder block
Crankcase
Engine frame
Girders
Foundation
82. What statement is not true regarding crankcase?
It is below the cylinder
It consist of upper and lower sections
It provides a sump for fuel oil
It encloses the crankshaft
Manholes on it allow access for maintenance
83. Cylinder head on a four-stroke engine contains.......
Air starting valve
Inlet valve
Exhaust valve
Fuel injector
All
84. What statement is not true regarding bedplate?
Bedplate supports the engine
It consists of cross and longitudinal girders
It is seated on the foundation
It must withstand the fluctiating forces during operation
It encloses the main bearing
85. The cooling medium for cylinder cooling circulates through
Jacket
Main bearings
Crankcase
Sump
Shafting
86. Which of the following parts is not a running part?
Piston
Crosshead
Cylinder
Exhaust valve
Camshaft
87. What part is exposed to the combustion directly
Piston crown
Piston skirt
Piston rod
Piston rings
Piston pin
88. Piston is connected to connecting rod by:
Piston rod
Piston head
Piston pin
Piston skirt
Crosshead guide
89. The grooves on the piston are for:
Piston pin
Piston rod
Piston crown
Crosshead slippers
Piston rings
90. What has a direct contact with piston rings?
Liner
Camshaft
Crosshead
Crankshaft
Jacket
91. What statement is true about pistons?
Piston is generally cooledwith seawater
Piston moves axially
Piston is connected to the connecting rod by piston pin
Piston is only made of steel
Diesel engines use only trunk type pistons
92. What statement is not true regarding camshaft?
Camshaft is used to operate the fuel pump and exhaust valve
b. It rorates at the same speed with the crankshaft on four stroke engines
Camshaft is driven by crankshaft with the gear gear drive or chain drive
Camshaft has cams
The camshaft is driven by a cam gear
93. In two stroke crosshead engine, the piston is connected to the crosshead by:
Crosshead slipper
Piston rod
Piston pin
Cam journal
Piston crown
94. ........is not a cooling system.
Piston cooling
Crankcase cooling
Lube oil cooling
Charge oil cooling
Pitch propeller cooling
95. The purpose of cylinder cooling is:
Maintaining the engine temperature at a certain level of operation
Retaining the piston temperature at constant speed
Making liner more slippery
Treating the fresh water before starting the engine
Reducing the crankshaft revolution speed
96. Receiving fuel on board the vessel is called as:
Storage
Seperation
Bunkering
Transfer
Service
97. Fuel transfer pumps are of:
Centrifugal type
Gear type
Positive dispalcement type
Axial flow type
Screw type
98. Fuel main is located:
On the bunkering station
On the storage tank
On the service tank
In the engine room
Underneath the cargo spaces
99. What parts are not lubricated on four stroke cycle engines?
Main bearings
Crank pins
Piston pins
Crosshead guides
Liners
100. The lubricating oil temperature is controlled with a:
Thermostatic valve
Viscosity regulator
Heater
Cooler
Strainer
101. The lubricating oil is stored in the ........located at the bottom of crankcase
Sump
Expansion tank
Drain tank
Lubricator
Steam heating coil
102. What is not a part of propulsion system
Propeller
Shafting
Main thrust block
Reduction Gear
Rudder
103. “Hub, blade, pitch”. The terms are related to:
Shafting
Rudder
Thrust block
Propeller
Sterntube
104. “Each blade is set into the boss and connected to the crosshead.” What word cannot be used instead of the underlined word?
Linked
Attached
United
Slipped
Joined
105.Performance of a turbocharged engine can be improved by:
Decreasing valve over lap
Preheating
Aftercooling intake air
Preheating light fuels
Heating intake air
106. The drains from both effects in a low pressure evaporator have their pressures equalized in the:
Equalizer tank
Drain tank
Flash chamber
Air ejector condense
Fuel oil tank
128. A scotch marine boiler does not have:
Furnace
Manhole
Smoke tubes
Burner
Drums
129. What statement is not true regarding tubes of a fire tube boiler
All the tubes are made of heat-resistant metal
All the tubes are surrounded by water
All the tubes immersed in water
All the tubes are mounted vertically
The hot gases pass through these tubes
135. Non-condensable gases are removed from the condenser by:
Air heater
Air ejector
Desuperheater
Attemperator
Deaerator
136. The function of a deaerator is :
Acting as a storage tank to keep water level
Keeping a constant pressure on the feed system
Keeping water free of air
Acting as a contact feed heater
all
137. What statement is not true ?
Soot blower keeps clear of combustion residues
De-aerator keeps water free of air
Air ejector removes non-condensable gases from economizer
Superheater removes the moisture from steam.
Attemperator reduces the temperature of superheated steam
138. “Raw water is not pure enough to use in boiler” What word can be exactly used instead of underlined word?
Treated
Untreated
Dilute
Dissolved
Salt
139. The dissolved salts in feedwater may cause:
Reduction in heat transfer by scale formation
Hardness
Caustic cracking
Tube failure from overheating
all
140. Caustic cracking is the result of:
Foaming
Priming
Excess of alkaline salts
Suspension
Leakage
141. pH Value is achieved by adding:
Hydrazine
Coagulant
Sulphure
Chloride
Magnesium
142. Corrosion within boiler is prevented by:
Polymer treatment
Adding anti-foam
Deaeration
Amine treatement
Adding coagulants
143. Scale and sludge formation is prevented by:
Neutralizing amines
Filming amines
Polymer treatment
Keeping pH value
Deaeration of the boiler by hydrazine
144. “The dissolved gases adhere to the heating surfaces” What word can be exactly used instead of underlined word?
Corrode
Stick
Contaminate
Crack
Suspend
232. ...... Are not self-priming pumps
Screw pumps
Reciprocating pumps
Gear pumps
Centrifugal pumps
Rotary positive displacement pumps
233. Any device used to regulate or stop the flow of liquid in a piping system is:
Pump
Valve
Ejector
Separator
Heat exchanger
234. .......is not a valve type?
Relief valve
Stop valve
Throttling valve
Check valve
Return valve
235. Metal made by combining two or more methalic elements is:
Monel
Alloy
Cast
Forged
Malleable
236. Which of the following valve types is not a stop valve?
a. Ball valve
b. Globe valve
c. Relief valve
d. Butterfly valve
e. Gate valve
237. What statement is not true regarding butterfly valves?
Butterfly valves are stop valves
Butterfly valves are small, quick-acting valves
Butterfly valves can be used for throttling
Butterfly valves can be uesd in water systems and lube systems
A spherical disc is used open and close the valve
238. To control the supply of expandable fluids such as compressed air, steam, a .....is used
Cock
Stop valve
Throttling valve
Relief valve
Drain valve
239. To discharge excess pressure in a piping system, a .....used
Ball valve
Stop valve
Relief valve
Throttle valve
Check valve
240. What associate is not true?
Air conditioning-cold room
Oil seperation – clarifier
Pump – positive displacement pump
Valve – non-return valve
Fresh water generation - evaporator
241.Marine electrical equipment are:
Generators
Motors,
Batteries,
Switchboards,
all
242. The machine that generates electrical energy is:
Generator,
Electric motor,
Battery,
Transformer,
rectifier
243. The machine that converts the electrical energy into mechanical energy is a:
Generator,
Motor,
Armature,
Transformer,
stator
244. Which of the following parts is not of a generator?
Rotor,
Stator,
Flywheel,
Winding,
Armature
245. What part of generator is not rotating?
Rotor,
Armature,
Rotorshaft,
Slip rings,
stator
246. The parts of generator that connect the high output voltage to the external circuit are:
Coils,
Rotors,
Slip rings and brushes,
Stators,
Armatures
247. What cools the generator by dissipating heat in the generator frame?
Rotor assembly,
Stator assembly,
Brushes,
Fan assembly,
Coils of wire
248. Which of the following devices are loads?
Alternator,
Wires,
Distribution panel,
Motor,
Coil
249. What is a part of marine electrical distribution?
DC motors,
Shaft generators,
Alternator,
Emergency switchboard,
AC motors
250. What statement is not true regarding switchboards?
Switchboards distribute electric power,
There are feeders that extend from switchboard to the distribution panels,
Switchboards are divided into sections by busbar isolators,
Switchboards receive power directly from transformer,
Switchboards are connected to the panels and circuits
251. What is used to seperate operating electrical equipment from the rest of the electric system
Busbars,
Emergency switchboard
Batteries,
Branch circuits,
Circuit breakers and fuses
252. Voltage generated by an alternator is reduced by:
Fuse,
Circuit breaker,
Batteries,
Flywheel,
Transformer
253. The voltage generated by an alternator is:
110 V.,
440 V,
220 V,
680 V,
120 V.
254. What statement is true regarding DC motors?
DC motors are more common than AC motor,
DC motors are easy to maintain,
DC motors are less expensive than AC motors,
DC motors have the constant speed characteristic,
DC motors run on the principles of attraction and repulsion of magnetism
255. What statement is not true regarding AC motors?
AC motors consist of two main assemblies : rotor and stator,
Rotors in an AC motor are turned by magnetic field,
The rotating field in an AC motor induces electromotor force,
AC motors operate on direct current,
Single-phase AC motors are also called squirrel cage motors
256. What can be a source of electric power?
An electric motor,
A fuse,
A battery,
A control panel,
A rotor.
257.“electrolite, anode, electrode”.The terms are related to a:
Cell,
Fuse,
Coil,
Pole,
Stator
258. What is the solution that reacts with the electrodes?
Battery,
Electrolyte,
Cell,
Anode,
Lead.
259. A lead-acid battery of 6 cells can give the voltage of;
2,2 V,
7 V,
12 V,
1,4 V,
6 V.
260. What statement is not true regarding electrolyte?
The electrolyte reacts with the electrodes
The electrolyte provides a path for electron flow,
It may be a salt, an acid, or an alcaline solution,
Electrolytes are non-conducting materials,
It can be a liquid or dry substance