Multiple-choice questions on batteries [Daily Question 090306]
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1. In the raw materials used for manufacturing rechargeable batteries other than nickel-chromium batteries, ( ) shall not be used. A. Mercury B. Cadmium C. Lead D. Compounds 2. After being charged and discharged 333 times, the capacity of nickel-metal hydride batteries used in mobile phones must still be greater than their nominal capacity by ( ). A、50% B、60% C、80% D、95% 3、The industrial production process of lead-acid batteries is at the international advanced level of clean production when the cadmium content in the products is ( ) A、≤8ppm B、≤10ppm C、=10ppm D、>10ppm This post was last edited by lyhh9024 on 2009-3-6 07:17]
1、C 2、D 3、B
1. The following substances shall not be used in the raw materials for manufacturing rechargeable batteries other than nickel-chromium batteries: (C) A. Mercury B. Cadmium C. Lead D. Compounds. 2. After 333 cycles of charging and discharging, the capacity of nickel-metal hydride batteries used in mobile phones must still be greater than their nominal capacity by (B). A、50% B、60% C、80% D、95% 3、The cadmium content in products (B) in the industrial production process of lead-acid batteries should reach the international advanced level for clean production: A、≤8ppm B、≤10ppm C、=10ppm D>10ppm
I choose 1, B 2, A 3, A
1. The following substances shall not be used in the raw materials for manufacturing rechargeable batteries other than nickel-chromium batteries: (C) A. Mercury B. Cadmium C. Lead D. Compounds. 2. After 333 cycles of charging and discharging, the capacity of nickel-metal hydride batteries used in mobile phones must still be greater than their nominal capacity by (C). A、50% B、60% C、80% D、95% 3、The cadmium content in products (B) in the industrial production process of lead-acid batteries should reach the international advanced level for clean production: A、≤8ppm B、≤10ppm C、=10ppm D>10ppm
1、C 2、C 3、B
1、C 2、C 3、B
1、C 2、D 3、D
There are significant differences of opinion regarding today’s question; I choose C, B, D
1、C 2、D 3、B
I choose: 1, C； 2、D ； 3、B
My answer: 1, C； 2、D ； 3、B
1. The following substances (ABCD) shall not be used in the raw materials for manufacturing rechargeable batteries other than nickel-chromium batteries: A. Mercury; B. Cadmium; C. Lead; D. Compounds. 2. After being charged and discharged 333 times, the capacity of nickel-metal hydride batteries used in mobile phones must still be greater than their nominal capacity by (C). A、50% B、60% C、80% D、95% 3、The industrial production process for lead-acid batteries, in which the cadmium content is (B), reaches the international advanced level of clean production. A、≤8ppm B、≤10ppm C、=10ppm D、>10ppm
1.A 2.A 3.B
1.A 2.D 3.B
1.A 2.A 3.B