ELECTRICIAN
In a simple circuit consisting of a resistor of value R,
In a simple circuit consisting of a resistor of value R,
when voltage V is kept constant, then
the current.,................
the current.,................
(a) I is a directly proportional to R
(b) I=R
(c) I is inversely proportional to R
(d) I is constant irrespective of changes in R
Answer : (c) I is inversely proportional to R
The MCB's working is based on.........................
(a) Thermal operation
(b) Thermal and Magnetic operations
(c) Magnetic operation
(d) Simple Mechanical Switching operation
Answer : (b) Thermal and Magnetic operations
The tripping time of ELCBs is usually less than.........
(a) 30 ms
(b) 80ms
(c) 100 ms
(c) 100 ms
(d) 200 ms
Answer : (a) 30 ms
Which of the following materials is a good Insulator?
(a) Aluminium
(a) Aluminium
(b) Copper
(c) Porcelain
(d) Silver
Answer: (c) Porcelain
Which of the following materials is a good conductor?
(a) Mica
(a) Mica
(b) Copper
(c) Rubber
(d) Ebonite
Answer: (b) Copper
The electrolyte used in Aluminum anodizing is dilute...........
(a) Nitric acid
(b) Aluminum sulphate solution
(c) Hydrochloric acid
(d) Sulphuric acid
Answer: (d) Sulphuric acid
The positively charged ions are called.................
(a) Cations
(b) Atoms
(c) Anions
(d) Neutrons
Answer: (a) Cations
The..........of a substance is the amount deposited
on the Electrode on passing a steady electric current
of one ampere for One second through its solution.
(a) Equivalent weight
(b) Atomic weight
(c) Electro chemical equivalent
(d) Chemical equivalent
Answer: (c) Electro chemical equivalent
The............. circuit is usually operated by
adjusting the variable resistor until no current
flows in the ammeter.
(a) Resistors in parallel
(b) Resistors in series
(c) Wheatstone bridge
(d) Feedback
Answer: c) Wheatstone bridge
Certain materials normally behave as insulators
but allow for more valence electrons to be
made available by thermal energy.
These elements are known as.........
(a) Semiconductors
(b) Conductors
(c) Insulators
(d) Conduction band
Answer: (a) Semiconductors
The...................has a hammer face which is
used to drive in nails and the other end is
used for pulling out nails from the wood.
(a) Mallet
(b) Claw Hammer
(c) Ball Pen Hammer
(d)Axe
Answer: (b) Claw Hammer
An electrical component with resistance and
inductance elements with draw ……
(a) Leading pf Current
(a) Leading pf Current
(b) Lagging pf Current
(c) Unity lpf Current
(d) Zero pf Current -
Answer: (b) Lagging pf Current
No comments:
Post a Comment