# EKT Model Question Paper (Electrical & Electronics) – I with Answer Solution 2019-20

EKT Model Question Paper (Electrical & Electronics) – I with Answer Solution 2019-20

Engineering Knowledge Test (EKT) 2019-20 Model Question Paper (Electrical & Electronics) – I with answers EKT Model Question Paper (Electrical & Electronics) – I 2019-20 Question with solution you can download it in FREE, if EKT Model Paper (Electrical & Electronics) – I 2019-20 paper in text or pdf for EKT Model Paper (Electrical & Electronics) – I 2019-20 Answer Keys you can download EKT 2019-20 page also just Go to menu bar, Click on File->then Save.

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## EKT Model Question Paper (Electrical & Electronics) – I with Answer Solution 2019-20

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Q1. If x=a(cos t + t sin t), y=a(sin t – t cos t). The value of dy/dx is

• (a) cos t
• (b) sin t
• (c) tan t
• (d) sec2 t

Q2. The area of three faces of a cuboid are in the ratio 2:3:4 and its volume is 9000 cm3. The length of the shortest edge is

• (a) 15 cm
• (b) 30 cm
• (c) 20 cm
• (d) 60 cm

Q3. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

• (a) 8/2
• (b) 9/20
• (c) 8/15
• (d) 2/20

Q4. The projection of a vector on another vector is

• (a) Scalar
• (b) Vector
• (c) neither vector nor scalar
• (d) either scalar or vector

Q5. In MKS system, we measure

• (a) mass in kilogram
• (b) distance in meter
• (c) time in second
• (d) all of these

Q6. When the separation between two charges is made four times, the force between them

• (a) increases four times
• (b) decreases four times
• (c) increases sixteen times
• (d) decreases sixteen times

Q7. When a conductor cuts magnetic flux, an emf is induced in the conductor. This is known as

• (a) Joule’s law
• (c) Coulomb’s law
• (d) Ampere’s law

Q8. X-rays are used for the study of crystal structure because

• (a) X-rays are completely absorbed by the crystal
• (b) the wavelength of X-ray is of the same order of magnitude in the inter-atomic spacing in crystals
• (c) the wavelength of X-rays is very small in comparison with the inter-atomic spacing in crystals
• (d) the crystals are completely transparent to X-rays

Q9. A radioactive isotope has a half-life of 10 days. If today there are 125 g of it left, what was its original weight 40 days earlier

• (a) 600 g
• (b) 1000 g
• (c) 1250 g
• (d) 2000 g

Q10. Angles project true size only when the plane containing the angle and plane of projection are

• (a) Aligned