Questions and answers for exam Preparation

MCQs

Total Questions : 207 | Page 17 of 21 pages

Question 161. Covering the pot with a glass lid ________ convection.

increases
does not affect
changes the direction of
reduces

Discuss Question

Answer: Option D. -> reduces
Answer: (d).reduces

Question 162. Which of the following pot surfaces are preferred for solar cookers?

White coloured
Black coloured
Red coloured
Silver coloured

Discuss Question

Answer: Option B. -> Black coloured
Answer: (b).Black coloured

Question 163. What was CooKit?

A solar parabolic cooker
A solar box cooker
A vapour compressor
A solar panel cooker

Discuss Question

Answer: Option D. -> A solar panel cooker
Answer: (d).A solar panel cooker

Question 164. Solar basket is a/an ________

active cooker
vapour compression technique
vapour absorption technique
passive cooker

Discuss Question

Answer: Option D. -> passive cooker
Answer: (d).passive cooker

Question 165. Which of the following materials are used to make sun basket?

Paper mache, parabolic mirror, gold and bakelite
Parabolic mirror, aluminum foil, paper mache and gold
Paper mache, aluminum foil, jute fabric and bamboo frame
Bamboo frame, parabolic mirror, gold rod for support and rubber for insulation

Discuss Question

Answer: Option C. -> Paper mache, aluminum foil, jute fabric and bamboo frame
Answer: (c).Paper mache, aluminum foil, jute fabric and bamboo frame

Question 166. Solar panel cookers are not effective under _______

cloudy conditions
sunny conditions
dry and sunny conditions
desert conditions

Discuss Question

Answer: Option A. -> cloudy conditions
Answer: (a).cloudy conditions

Question 167. What type of solar cooker is a sun basket?

Solar panel cooker
Solar parabolic cooker
Solar box cooker
Vapour absorption compression

Discuss Question

Answer: Option B. -> Solar parabolic cooker
Answer: (b).Solar parabolic cooker

Question 168. What is a solar box type cooker?

An insulated box with a transparent glass cover and reflective surface directing sunlight into the box
An insulated parabolic mirror which is used to reflect the sunlight onto the conduction pan
A thermal conducting box with a transparent glass cover and reflective surface directing sunlight into the box
A thermal conducting parabolic mirror which is used to reflect the sunlight onto the insulated pan

Discuss Question

Answer: Option A. -> An insulated box with a transparent glass cover and reflective surface directing sunlight into the box
Answer: (a).An insulated box with a transparent glass cover and reflective surface directing sunlight into the box

Question 169. Which of the following colours can be used to paint the insulated box in a solar box cooker?