1866: Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance ?
(a) Aluminium
(b) Chromium
(c) Nickel
(d) Tungsten
1867: The Ninth Schedule to the Indian Constitution was added by
(a) First Amendment
(b) Eighth Amendment
(c) Ninth Amendment
(d) Forty second Amendment
1868: Identical twins are born when:
(a) Two sperms fertilise one ovum
(b) Two sperms fertilise two ovums simultaneously
(c) One sperm fertilises the ovum and zygote divides into two separate cells developing independently
(d) One sperm fertilises two ovums
1869: Which of the following diseases of milching animals are infectious?
1. Foot and Moth disease
2. Anthrax
3. Black Quarter
4. Cowpox
Select the correct answer using the code given below:
(a) 1, 2 and 3
(b) 1 and 4
(c) 2, 3 and 4
(d) 1, 2, 3 and 4
1870: The centre of gravity of the floating ship:
(a) Lies above the metacentre
(b) Lies below the metacentre
(c) Coincides with the metacentre
(d) None of the above