techedu.rajasthan.gov.in RPET 2014 Sample Question Paper Pre Engineering Test : Board of Technical Education

Name of the Organization : Board of Technical Education Rajasthan (techedu.rajasthan.gov.in)
Name of the Paper : Rajasthan Pre Engineering Test RPET 2014 Sample Question Paper
Location : Jodhpur

Website : http://techedu.rajasthan.gov.in/index.htm

Answer Key for RPET 2014 : https://www.indianjobtalks.in/39753.html
Result for RPET 2014 : https://www.indianjobtalks.in/39745.html
Admission Card for RPET 2014 (Rajasthan Pre Engineering Test) : https://www.indianjobtalks.in/32783.html

RPET-2014 Sample Questions :
Physics :
1 : The variation of angular momentum with time for a rigid body rotating about an axis is as shown in the figure.
The torque at t = 40 seconds is :
(1) 1 Joule
(2) 1 Newton
(3) Zero
(4) 0.75 Joule

2 : The Pendulum of a grand-father’s clock swings 10 cm from side to side per second. Assuming it to be a simple pendulum, show that the peak velocity of the bob (in cm/sec) is nearly :
(1) 16
(2) 12
(3) 8
(4) 4

3 : Ball I having 1 kg mass strikes a glancing blow to another ball II at rest in an elastic collision with a speed of 5m/s. Ball I then moves off at right angle to its initial direction at a speed of 4 m/s. The momentum of ball II after collision in magnitude would be nearly
(1) 5
(2) 6
(3) 1
(4) 2

4 : For a gm molecule of hydrogen and helium gases two specific heats (Cp and Cv) are found. Choose the correct statement concerning these specific heats:
(1) The ratio Cp / Cv for both gases is equal
(2) The ratio Cp / Cv for helium is more than for hydrogen.
(3) The ratio Cp / Cv for hydrogen is more than for helium (4) The difference (Cp – Cv) for both is unequal

5 : Two slits are placed 2 mm apart and 300 cm from the screen. When light of 6000 angstroms is used, the bright lines of the interference pattern will be separated by a distance in mm equal to
(1) 3.1
(2) 4.15
(3) 0.90
(4) 9.00

6 : Two locomotives moving with a speed of 36 km/ hr recede from each other, One of the locomotives whistles with a frequency of 200 Hz. Taking velocity of sound in air to be 340 m/s, the pitch of whistle (in Hz) as heard by an observer in the other locomotive will be
(1) 188
(2) 212
(3) 200
(4) 224

7 :What is the maximum charge (in coulombs) that can be conveyed to a conducting sphere of diameter 10 cm, if the breakdown voltage of air. is 2 x 106 volts/m –
(1) 2.0 x 10-4
(2) 5.6 x 10-7
(3) 5.6 x 10-2
(4) 2.0 x 102

8 : In a potentiometer a long uniformly thick resistance wire is used to have
(1) high resistance of potentiometer
(2) small heating of the wire
(3) high potential drop along the wire
(4) uniform and small potential gradient

9 : Voltage of a power line at a given place is 220V. The peak voltage (in volts) will nearly be
(1) 440
(2) 220
(3) 310
(4) 345

10 : The wave length of first line of the Lyman series of a ten times ionized Na atom (Z = 11) is about (the first of the Lyman series for hydrogen is 1216 Å or 1.216 x 10-7 m) :
(1) 0.1 Å
(2) 10 Å
(3) 103 Å
(4) l00 Å

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