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12th February 2016, 03:18 PM
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Join Date: Apr 2013
Re: NPCIL Operator Exam Paper

The Nuclear Power Corporation of India Limited is a government-owned corporation of India based in the financial capital of India viz Mumbai in the state of Maharashtra.

NPCIL operator exam paper for the electronics departments

1.

What is the color code for a 220 omega.gif 5% resistor?

A. Red, Red, Brown, Gold

B. Orange, Orange, Black, Gold

C. Red, Red, Black, Gold

D. Red, Red, Brown, Silver



2.

If 60 J of energy are available for every 15 C of charge, what is the voltage?

A. 4 V

B. 60 V

C. 15 V

D. 0.25 V



3.

An atom's atomic number is determined by the number of:

A. neutrons minus protons

B. protons

C. electrons

D. neutrons



4.

A voltage will influence current only if the circuit is:

A. open

B. insulated

C. high resistance

D. closed



5.

Which resistive component is designed to be temperature sensitive?

A. Thermistor

B. Rheostat

C. Potentiometer

D. Photoconductive cell



6.

The output will be a LOW for any case when one or more inputs are zero in a(n):

A. OR gate

B. NOT gate

C. AND gate

D. NAND gate



7.

If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):

A. AND B. NAND

C. NOR D. OR



8.

A single transistor can be used to build which of the following digital logic gates?

A. AND gates

B. OR gates

C. NOT gates

D. NAND gates




The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):

A. OR gate

B. AND gate

C. NOR gate

D. NOT gate




How many NAND circuits are contained in a 7400 NAND IC?

A. 1 B. 2

C. 4 D. 8


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