IOCL Placement - Written test questions - Technical

IOCL Placement - Written test questions - Technical

Some of the technical questions observed in the written test are:

What type of RJ45 UTP cable is used between switches?

a. Crossover cable
b. Straight – through
c. Crossover with a router in between two switches
d. Crossover with a router in between the two switches.

From the following option, which is the correct order when data is encapsulated?

a. Data, segment, packet, frame, bit
b. Data, frame, packet, segment, bit
c. Segment, data, packet, frame, bit
d. Data, bit, segment, frame, packet

Which type of cabling will you use, if you have to implement a network medium that is not susceptible to EMI?

a. Fiber – optic cable
b. Thinnet coax
c. Thicknet coax
d. Category 5 UTP Cable

At which layer of the OSI Model does segmentation of data stream happens?

a. Network
b. Data link
c. Physical
d. Transport

Which OSI layer holds the characteristics of acknowledgements, sequencing and flow control?

a. Layer 3
b. Layer 7
c. Layer 2
d. Layer 4

From the below mentioned options of heating, which option is independent of supply frequency?

a. Dielectric heating
b. Induction heating
c. Electric resistance heating
d. Electric arc heating

What does the size of a conductor used in power cables depend on?

a. Current to be carried
b. Operating voltage
c. Power factor
d. Type of insulation used.

A two winding single phase transformer has a voltage regulation of 4.5% at full – load and unity power factor. What should be voltage regulation at full load and 0.80 power factor lagging load?

a. 4.5 % or more than 4.5%
b. Less than 4.5%
c. 4.5%
d. More than 4.5%\

A hysteresis motor?

a. Needs Dc excitation
b. Is not a self - starting motor
c. Is a constant speed motor
d. Cannot be run in reverse speed

The voltage regulation shall be 0 in a transformer when it operates at?

a. Leading p.f.
b. Lagging p.f.
c. Unity p.f.
d. Zero p.f. leading

The maximum torque in a 3 phase induction motor is:

a. Proportional to rotor resistance
b. Is not dependent

What is the usual generation voltage?

a. Between 400 KV and 700 KV
b. Between 11 KV and 33 KV
c. Between 132 KV and 400 KV
d. None of the above

In a stepper motor the angular displacement -

a. Cannot be readily interfaced with micro - computer based controller
b. Cannot be precisely controlled
c. Can be precisely controlled
d. Cannot be used for positioning of work tables and tools in NC machines

The two windings of a transformer is?

a. Not linked at all
b. Conductively linked
c. Electrically linked
d. Inductively linked

The D.C. series motor should always be started with load because:

a. It will fail to start
b. It will not develop high starting torque
c. At no load, it will rotate at dangerously high speed
d. All the above statements are true

From the below mentioned options, which type of connection can use full duplex?

1. Switch to switch
2. Hub to hub
3. Host to host
4. Switch to host
5. Switch to hub

a. 3 and 5
b. 1, 2 and 4
c. 2, 3 and 5
d. 3 and 4

Choose the types of flow control?

1. Windowing
2. Congestion avoidance
3. Buffering
4. Cut through

a. 2 only
b. 1 and 2
c. 3 only
d. 1, 3 and 4

Which three statements are true about the operation of a full duplex Ethernet network?

1. A dedicated switch port is required for each full duplex mode.
2. There are no collisions in a full duplex mode.
3. The host network card and the switch port must be capable of operating in full duplex mode.
4. Ethernet hub ports are preconfigured for full duplex mode.
5. In a full duplex environment, the host network card must check for the availability of the network media before transmitting.

a. 2 and 4
b. 2, 3 and 4
c. 1, 2 and 5
d. 5 only