EE free mini mock test tech + non tech

1➤ State True/False for the following statements: 1. Pony motors are used for starting of synchronous motors. 2. Damper windings are used for starting of 3-phase induction motors.

True, FalseFalse, FalseFalse, TrueTrue, True

2➤ The normally excited alternator works at

zero power factorleading power factorunity power factorlagging power factor

3➤ In a 2-wire DC transmission line, the loop resistance is 80 Ω. Find the resistance of a single conductor.

80 Ω40 Ω120 Ω 160 Ω

4➤ Which of the following network theorems can be used as a dual of each other?

Maximum power transfer theorem and Norton's theoremThevenin's theorem and Superposition theoremNorton's theorem and Thevenin's theoremSuperposition theorem and Reciprocity theorem

5➤ The full name of S. L. type cable is

selective level type cableseparate lead type cablestranded line type cablestraight line type cable

6➤ The use of Buchholz relay for the protection of oil immersed transformers of rating less than______is generally uneconomical.

1250 KVA1000 KVA 1500 KVA750 kVA

7➤ Which of the following is true for PMMC instruments?

Nonuniform scaleLow torque to weight ratiolow power consumptionVery narrow range

8➤ Which of the following is a desirable mechanical characteristic of traction motors?

Simple speed controlHigh starting torquePossibility of regenerative brakingCompact size and low weight

9➤ State True False for the following statements, with reference to overload and short circuit in power systems: 1. The voltage at the overload point may be low, but not zero. 2. The currents in the overloaded equipment are substantially lower than that in the case of a short-circuit.

True, trueFalse, TrueTrue, FalseFalse, False

10➤ Which of the following is NOT a commonly used localised capacitance method for medium transmission line?

End condenser methodNominal-T method Nominal- πmethodNominal-Z method

11➤ A fuel with a total energy of 11000 kJ is used by a 1000 kW engine. How much energy is lost if the engine burns all of the fuel in 10 seconds?

1000 kJ500 KJ 2000 kJ100 kJ

12➤ The contacts of the air switches are opened in______ and that of the oil switches are opened in_____respectively

vacuum, air .air, vacuumoil, vacuumair, oil

13➤ In capacitor start induction motor, if the capacitor is replaced with a shorted link, then:

the motor will not startthe motor will run at higher speed in the same directionthe motor will run at higher speed in reverse directionthe motor will run at lower speed in reverse direction

14➤ Which of the following is NOT a correctly matched pair?

Megger - resistanceAmmeter - fluxVoltmeter - potential differenceWien bridge - frequency

15➤ Determine the amount of charge stored on 5 µF capacitor when it is connected to a 12 V battery?

2.4 μC30 μC60 μC5 μC

16➤ State True/False for the following statements related to power generation: 1. Load factor is always greater than unity. 2. Diversity factor is always less than unity.

True, FalseFalse, TrueTrue, TrueFalse, False

17➤ For which of the following points is indoor substation superior to outdoor substation?

Fault locationMaintenance requirement SafetyCost

18➤ A single-phase overhead transmission line delivers 990 kW at 33 kV at 0-8 p.f. lagging. Find the line current.

37.5 A3.50 A 3.75 A2.5 A

19➤ An addition of 1% or 2% cadmium to copper_____the tensile strength and______the conductivity as conductor material.

increases, increasesdecreases, increasesdecreases, decreasesincreases, decreases

20➤ For an Ideal two winding transformer, which of the following is INCORRECT?

Magnetising curve for the core is non-linearWinding resistances are negligibleAll the flux is confined to the magnetic coreCore losses are negligible

21➤ What is the correct statement for the series capacitor in the transmission line?

Decries current densityDoes not produce short circuit current Minimising the temperature in a conductorIncreasing the power handling capacity

22➤ Which of the following is the correct colour code for a resistor having its resistance equal to 68 kmohm ± 10%?

Grey, blue, orange, silverBlue, grey, orange, silverBlue, grey, orange, goldGrey, blue, orange, gold

23➤ An alternating voltage completes 80 cycles in 2 seconds. Find the frequency.

80 Hz20 Hz40 Hz 160 Hz

24➤ Select the most appropriate ANTONYM of the word given in brackets to fill in the blank. _____yet took a lenient view of his case. (Innocence) The jury was convinced of his

guiltsneerdecryscorn

25➤ Select the most appropriate options to fill in the blanks. ______producer and ________director of this movie has been honoured

A; a .No word; aThe; theThe; no word

26➤ Select the most appropriate synonym of the word given in brackets to fill in the blank. He is not______ to working for such long hours. (Habituated) .

apprisedaccustomedqualifiedinformed

27➤ Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph. A. Most conflicts happen in poor countries, especially ones which are badly governed or where power and wealth are not distributed fairly between groups. B. The need is to ensure human rights and economic development of all. C. We must do all we can to stop conflicts and civil war. D. So the best way to check fighting is to make a political arrangement in which all groups have their representatives.

CADBDBCABDACCDBA

28➤ Select the most appropriate option to fill in the blank. If you are not true______your word, nobody will trust you.

abouttowithin

29➤ Select the most appropriate options to fill in the blank. The police cordoned ________the area where the murder was committed.

offthroughoveraway

30➤ Select the most appropriate ANTONYM of the word given in brackets to fill in the blank. The mill owners______ the demands of the workers after two weeks of strike. (Denied)

dismissedrebuffedprohibitedsanctioned

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