Question: Pick out the wrong statement?

• 1. Gross margin = net income – net expenditure
• 2. Net sales realisation (NSR) = Gross sales – selling expenses
• 3. At breakeven point, NSR is more than the total production cost
• 4. Net profit = Gross margin – depreciation – interest

Question: Pick out the wrong statement?

• 1. Net worth means paid up share capital and reserve & surplus (i.e. shareholders equity)
• 2. Return on equity = profit after tax/net worth
• 3. Working capital turnover ratio = sales/net working capital
• 4. Total cost of production is more than net sales realisation (NSR) at breakeven point

Question: Buna-N is also called__________________?

• 1. Butyl rubber
• 2. Nitrile rubber
• 3. Neoprene
• 4. Thiokol

Question: Alkyd resin cannot be used for making_________________?

• 1. Plasticiser
• 2. Paint & varnish
• 3. Fibers
• 4. Film forming materials

Question: Poly-methyl-methacrylate, which is an acrylic resin, is also called ___________________?

• 1. Thiokol
• 2. Plexiglass or Lucite
• 3. Dacron
• 4. Teflon

Question: Vulcanisation of raw rubber makes it__________________?

• 1. Soft
• 2. Less elastic
• 3. Plastic
• 4. Tacky

Question: Which of the following is not a polyolefin ?

• 1. Polystyrene
• 2. Polypropylene
• 3. Neoprene
• 4. None of these

Question: Contact lenses for eyes are made of Perspex, which is nothing but_______________?

• 1. poly-methyl-methacrylate
• 2. Polystyrene
• 3. Unsaturated polyester
• 4. Polypropylene

Question: Most of the plastics are safe to be used upto a maximum temperature of ______________ °C?

• 1. 100
• 2. 150
• 3. 350
• 4. 450

Question: Bristles of tooth brushes are made of_______________?

• 1. Nylon-6
• 2. Nylon-66
• 3. Polystyrene
• 4. PVC