106: Pneumoconiosis afflicts the workers who work mainly in:
(a) Tanneries
(b) Coal mining industry
(c) Glass industry
(d) Distilleries
Explanation:
Inhalation of coal dust for prolonged periods can damage lung tissue of Miners and often develops spots, lumps of fibrous growths in their lungs, this condition is known as pneumoconiosis or or black lung disease. Further it develops into other fatal illnesses like heart disease, emphysema and cancer. Coal dust filtering units should be provided in the mines to protect miners from inhaling dust.
107: With reference to Indian economy, consider the following statements:
1. The rate of growth of Real Gross Domestic Product has steadily increased in the last decade.
2. The Gross Domestic Product at market prices (in rupees) has steadily increased in the last
decade.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Explanation:
First statement is wrong because there was a recession in 2008, which resulted in downfall of Indian Economy. It declined from 8-9% to 5-6%.
Second Statement is correct. Though the growth rate declined in the last decade but it never became negative. So, the GDP at market prices has always increased every year.
108: A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?
1. DVD supports Standard Definition video while BD supports High Definition video.
2. Compared to a DVD, the BD format has several times more storage capacity.
3. Thickness of BD is 2.4 mm while that of DVD is1.2 mm.
Which of the statements given above is! are correct?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Explanation:
Blu-ray Disc (official abbreviation BD) is an optical disc storage medium designed to supersede the DVD format.
DVD supports standard definition (SD) videos while Blu-ray Disc supports full 1080p resolution, so we view High Definition movies in the best quality possible.
- Blu ray disc offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single - layer disc and 50GB on a dual-layer disc.
- The disc thickness of BD is 1.2 mm plastic optical disc, the same size a DVDs and CDs.
109: Assertion (A) :
An iron ball floats on mercury but gets immersed in water.
Reason (R) :
The specific gravity of iron is more than that of mercury.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
Explanation:
If the specific gravity (density) of a body is less than the specific gravity of a given fluid, then the body floats on it.
Here the Iron ball floats on Mercury and dips in water.
density of Iron < density of Mercury
Density of Iron > density of Water
110: Which one of the following is not an instrument of selective credit control in India ?
(a) Regulation of consumer credit
(b) Rationing of credit
(c) Margin requirements
(d) Variable cost reserve ratios
Explanation:
Qualitative of Selective Credit Control is used to direct credit to some operations and restrict and ration to some others depending upon the priorities and purposes. Thus the total quantum of credit doesn't change. Regulation of consumer credit, Rationing of credit and Margin reguirements are selective credit control instruments. On the other hand, Bank rate, CRR, and Open market operations are instruments of quantitative credit control of Monetary Policy.