RRB Technician 2024 (Grade 1) Previous Year Paper (20-Dec-2024) (Shift 1)

Question 1

Calculate the maximum velocity of the beam of electrons in a CRT having a cathode and anode voltage of 182 V. Assume that the electrons leave the cathode with zero velocity. (Charge of electron = 1.6 &times; 10-19 C and mass of electron = 9.1 &times; 10-31 kg)

Accepted Answer

8 × 106 m/s

Answer

4 × 106 m/s

Answer

2 × 106 m/s

Answer

1 × 106 m/s

Question 2

In a parallel circuit, if one of the resistors R1 is removed, the total resistance of the circuit will _____.

Accepted Answer

increase

Answer

decrease

Answer

be zero

Answer

remain the same

Question 3

In a survey of 260 students in a school, 100 were listed as taking apple juice, 150 as taking orange juice, and 75 were listed as taking both apple as well as orange juice. Find how many students were taking neither apple juice nor orange juice.

Accepted Answer

85

Answer

75

Answer

65

Answer

95

Question 4

What is the power factor for a purely inductive or purely capacitive AC circuit?

Accepted Answer

0

Answer

-1

Answer

1

Answer

0.5

Question 5

A bag contains balls numbered from 1 to 42. One ball is drawn at random from these balls. The probability that its number is a multiple of 7 or 8 is:

Accepted Answer

11&frasl;42

Answer

22&frasl;42

Answer

13&frasl;22

Answer

11&frasl;22

RRB Technician 2024 (Grade 1) Previous Year Paper (20-Dec-2024) (Shift 1)

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