RPET Guess Paper

Please get the Rajasthan Pre-Engineering Test (RPET) so that I can prepare for it easily and score well in the exam?

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Here is the exam paper
1. Sun releases energy by the process of
A. nuclear fusion
B. nuclear disintegration
C. nuclear fission
D. spontaneous combustion

2. The number of atoms per unit cell in a sc, bcc, and fcc are
A. 1, 2 and 4 respectively
B. 8, 6 and 10 respectively
C. 1, 4 and 2 respectively
D. 2, 4 and 1 respectively

3. In a diode, at saturation current, the plate resistance is
A. zero
B. constant and finite
C. infinite
D. variable but finite

4. An n-type and a p-type silicon semi-conductor can be obtained by doping pure silicon with
A. sodium and magnesium respectively
B. phosphorous and boron respectively
C. indium and sodium respectively
D. boron and arsenic respectively

5. When the plate voltage of a triode is 150 V, its cut off voltage is -5 V. On increasing the plate voltage to 200 V, the cut off voltage can be
A. -4.5V
B. -5.0V
C. + 2.3 V
D. -6.06 V

6. In a diode vacuum tube, the plate current is 5 mA when the plate voltage is 160 V. A grid is introduced between the plate and cathode and a voltage of -2 V is applied to it. The plate current then become
A. 20 mA
B. 10 mA
C. 4mA
D. 7.5mA

7. A long spring is stretched by 2cm. Its potential energy is V. If the spring is stretched by 10cm, its potential energy would be
A. V/25
B. V/5
C. 5V
D. 25V



Rajasthan Pre-Engineering Test (RPET) exam paper

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Answered By StudyChaCha Member