(i) It is necessary because a person of poor healttr cannot work competently and any investment on him may go waste.
(ii) It determines an applicant's physical ability to perform a specific job.
(iii) physical fitness of the candidate under selection to the job concerned

(i) A group lnterview is a screening process where you interview multiple candidates at the same time.
(ii) Group interview is a good time saving type of interview.Instead of spending 5 hours interviewing 5 candidates individually, one hour can be spent interviewing them in a group.
(iii) Some time particular topic is given to the group, and they are asked to discuss it.

(i) Due to tremendous growth in information and communication technology, these days interviews are conducted by means of internet via Skype or Video conferencing methods
(ii) This enables the interviewers to conduct interview with the candidates living in faraway places.
(iii) They saves a lot of time, money and energy both for employer's organization and the candidate.

(i) When the candidates live far away from organization and find it difficult to attend preliminary interview for various reasons
(ii) Telephone interview is conducted by some organization to eliminate unfit and unsuitable candidate at the preliminary stage itself.

The following basic information which need to be included in a writt~n contract of employment varies according to the level of the job, They are
(i) Job title
(ii) Duties & Responsibilities
(iii) Scale of pay allowance, increments
(iv) Working hours
(v) Date when continuous employment starts and basis for calculating service
(vi) Work rules
(vii) Grievance procedure
(viii) Disciplinary procedure
(ix) Special terms and conditions relating to rights etc

(a) Group interview method :
(i) A group interview is a screening process where multiple candidates are interviewed at the same time. 
(ii) Group interview is a good time saving type of interview.
(iii) The competency of members of group is assessed by keenly observing the participation of members in the discussion.
(b) Video conferencing interview:
(i) Video conferences interview is similar to face to face interview.
(ii) Video conferencing interview is a kind of conference call that connects the candidate with companies located across various geographies.
(iii) Interview can be conducted from a desktop at work, a home computer or smart phone or a tablet.

(i) Mental arithmetic test : It tests the candidate's basic numerical ability like addition, subtraction, multiplication, division and fraction. It test the speed of doing calculation.
(ii) Vocabulary test : The test measures candidate's ability to recognize the relationship among the ideas, think methodically and fluency in English language.
(iii) Number sequence test: This measures the candidate's ability to find a logic in a series or pattern. Under this test, candidates have to find out missing number in a sequence to determine the pattern.

(i) Application Blank : Most of public sector undertaking, various ministries of Government, Selection Commissions, Recruitment Board and Private Sector Companies either supply pre-printed application form or direct the candidates to download the forms uploaded in their respective websites.
(ii) Scrutinizing the Applications: Selection committee has to evolve some criteria like age, length of experience, level of education, percentage of marks, higher qualification, level of exposure, communal quotos, proficiency etc., to shortlist the number of applicants for the interview.
(iii) Selection Test: Several tests are conducted in the selection process to ensure whether the candidate possesses the necessary qualification to fit into various positions in the organization

The Significance of the placement is given below:
(i) It improves employee morale
(ii) It helps in reducing employee turnover
(iii) It helps in reducing conflict rates or accidents.
(iv) It avoids misfit between the candidates and the job
(v) It helps the candidate to work as per the predetermined objectives of the organization.

(i) Preliminary Interview
(ii) Structure/ Guided / Planned Interview
(ii) Unstructured Interview
(iv) In depth Interview
(v) Panel Interview
(vi) Stress Interview
(vii) Telephone Interview
(viii) Online Interview
(ix) Group Interview
(x) Video conferencing Interview

1. It is necessary because a person of poor health cannot work competently and any investment on him may go waste.
2. lt determines an applicant's physical ability to perform a specitic job.
3. Physical fitness of the candidate under selection to the job concerned.