NTDC Assistant Lineman ALM Past Paper 10 10 2021 MCQs for preparation.
___ is the unit of measurement for the potential difference that cause a current to flow through a conductor
- Ampere
- Volt
- Ohm
- Watt
Which of the following is a type of transistor ?
- DET
- FAJET
- TRICAT
- BJT
Light emitting diode is a ___ semiconductor device .
- 3 lead
- 4 lead
- 7 lead
- 2 lead
__ are light sensitive variable resistors
- Potential resistors
- Base resistors
- Terminal resistors
- Photo resistors
Which one of the following is not a factor affecting the resistance of a material ?
- Temperature
- Cross sectional area
- Type of material
- Pressure exerted by material on smooth surface
Which one of the following is unit of frequency ?
- Hertz
- Meter
- Cycles
- Joules
Never connect ohm meter on ___ circuits .
- Open
- short
- Live
- Inductive
The minimum voltage which can flow current in the human body is :
- 40 to 50 volts
- 50 to 60 volts
- 60 to 70 volts
- 70 to 80 volts
The minimum current which can get human in comma is :
- 10 micro ampere
- 2 milli ampere
- 10 milli ampere
- 100 milli ampere
The average resistance of human body is :
- 1 k
- 1.5 k
- 2 k
- 5 k
In electrical cables AWG stands for ___ .
- American wire gauge
- American wide gears
- American wires group
- Anti wind gird
For high current flow in electrical circuits one needs
- Good conductor
- Copper
- Silver
- Thick conductors
For the protection of electrical appliances fuses are widely used, the value of fuse is in :
- Amperes
- watts
- Volts
- Ohms
The value of fuse current is chosen :
- Less than the affordable current of the load
- Greater than the load current
- Equal to the load current
- None of the above
A residual current device is widely used in electrical circuits :
- for leakage current detection
- For circuit breaker
- For voltage regulation
- For shock safety
In the electrical companies there must be fire safety to avoid danger, commonly used equipment is :
- Fire extinguisher
- Water tank
- Mud/ soil
- Air blower
In case of electrical shock, what kind of first aid should be provided to the person :
- Providing Oxygen
- Providing water
- Dig in earth
- Anti shock strip
What is the unit of measurement of Inductance ?
- Light
- Tesla
- Henry
- Watt
The process of changing alternating current to direct current is called as ____ .
- resillence
- simplification
- Rectification
- Resonance
___ consist of two conductors separated by non conductive region .
- Thermostat
- Electronic valve
- Thermal valve
- Capacitor
Practical resistors also have some inductance and ___ which effect the relation between voltage and current in alternating current circuits.
- Zero capacitance
- Insulation
- Zero tolerance
- Capacitance
The behavior of an ideal resister is dictated by the relationship specified by ___ .
- Sync Theorem
- Bernoulli's equation
- Faraday's law
- Ohm's law
___ may be used to reduce current flow, and, at the same time, may act to lower voltage levels within circuits.
- Diodes
- Resistors
- transistors
- Transformers
Which one of the following material is a conductor ?
- Silver
- Rubber
- Glass
- Teflon
A body rolling freely on the surface of earth eventually comes to rest because
- It has mass
- It suffers fraction
- It has inertia of rest
- It has a momentum
A moter operates from a 120-volt electrical source and use four amperes of current. What is the power generated by the motor?
- 30 W
- 120 W
- 48 W
- 480 W
The study of motion of body is called :
- Mechanics
- Heat
- Light
- Sound
The value of 'g' outside the earth is :
- zero
- 0.1 m /s2
- 9.8 m/s2
- None of these
The acceleration of body due to the constant velocity is :
- Positive
- Zero
- Negative
- None of these
Materials that block flow of electrons are called
- Conductors
- Sami conductors
- Insolaters
- Super conductors