Electro Technical Officer(ETO) Exam Questions and Answers

Selective Questions and answers for Electro technical officer - ETO. Multiple choice Questions and answer for ETO COC (Certificate for Competency) exam.

1. The seven segment arrangement for a numerical display on consoles, test meters, and other applications can be either ______ ?

a. A BCD or an OCD

b. An LED or an LCD 

c. A UJT or a BJT

d. A JFET or an LCD

2. When checking a good SCR or TRIAC with an ohmmeter it will ____.

a. Display a low resistance with positive on the anode, -ve probe on the cathode and a high resistance when it is reversed

b. Display a low resistance in both directions

c. Display a high resistance in both directions

d.  Display a high resistance with -ve on the anode, +ve probe on the cathode and a low resistance when it is reversed

3. A microprocessor unit, a memory unit, and an input unit form a/ an _____?

a. Complier

b. ALU

c. CPU

d. Microcomputer

4. Which of these sets of logic gates are designated as universal gates?

a. XOR, NOR NAND

b. NOR, NAND, XNOR

c. NOR, NAND

d. OR, NOT, AND

5. When a step input is given to an op-amp integrator, the output will be ____?

a. A sinusoidal wave

b. A triangular wave with DC bias

c. A ramp

d. A rectangular wave 

6. When transistors are used in digital circuits they usually operate in the _____?

a. Breakdown Region

b. Linear region

c. Active region

d. Saturation and cut off regions

7. What minimum energy level will ignite gases falling in group II c?

a. 69 micro J

b. 400 micro J

c. 280  micro J

d. 29 micro J

Answer:

1. An LED or an LCD

2. Display a high resistance in both directions

3. Microcomputer

4. NOR, NAND

5. A ramp

6. Saturation and cut off regions

7. 29 micro J

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