Question

For energy efficient motor which of the following is correct
(a) Uses more power
(b) uses low quality material
(c) Has high reliability
Cost effectiveness depends on
(d) more vibrations during operation
(a) Motor price
(b) annual hours of use
(c) Efficiency rating
(d) Cost of installation and downtime
(e) a,b,c,d
Magnetic core losses arises due to
(a) Eddy currents
(6) Hystersis losses
(c) Magnetic saturation
(d) 2,b,c
Which of the following is not included in the objectives of BIS?
(a) Market involvement of firms (b) Standarisation
(c) Marking
(d) Quality certification
Which of the following are not the barriers in energy efficient lighting
(a) High capital cost
(6) Lack of knowledge
(c) Various shapes of lightening product apparatus
(d) Lack of good quality
Which of the following is not the point related to the limitation of CFL
(a) On/Off cycling
(b) Indoor
(c) Dimmer
(d) Retail lighting
Replacing incandescent traffic lights by LED arrays reduced electricity cost nearly
(a) 20%
(b) 40%
(c) 80%
(d) 100%
सभी का आंसर फास्ट ​

Answer 1

1. (b) 2. (e) 3. (d) 4. (a) 5. (c) 6. (b) 7. (c)

Answer 2

Answer:

1. Uses materials of poor quality.

2. (d) Installation costs and downtime.

3.  2,b,c.

4. Firms participating in the market (b) Standardization

5. (c) Different lighting product device designs.

6. Indoor.

7. 80%

Explanation:

Power electronic drives are less expensive, more effective, and reliable. In reality, a power electronic drive uses 25% less energy on average than a traditional motor drive system, and electric motors are much more energy-efficient than internal combustion engines (ICEs). Compared to a gas combustion engine, which converts less than 40% of electrical energy into mechanical energy, an electric motor does so at a rate of over 85%.

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